Academic literature on the topic 'Connective tissue - Graft'
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Journal articles on the topic "Connective tissue - Graft"
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Keerthana Baskar, Nashra Kareem, and Sreedevi Dharman. "Evaluation of Connective Tissue Grafts Versus Free Gingival Grafts." International Journal of Research in Pharmaceutical Sciences 11, SPL4 (December 24, 2020): 474–78. http://dx.doi.org/10.26452/ijrps.v11ispl4.3885.
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Root coverage is one of the important aims of periodontal therapy. The aim of the study was to evaluate the connective-tissue grafts (CTG) and free gingival grafts (FGG) in root coverage procedures. A retrospective study of sample size 32 was conducted. These patients underwent a root coverage procedure done using grafts. The details on which graft was obtained from patient records were reviewed and analysed between June 2019 to March 2020. Excel tabulation was done, analysed and transferred to SPSS for statistical analysis. The p value was set at 0.05. In the study, it was found that CTG was used in 56.25% of the patients and FGG was used in 43.75% of the patients undergoing root coverage procedure. It was found that Free gingival grafts (25%) were placed more commonly in females when compared to connective tissue grafts (18.75%). However, in males, connective tissue grafts (37.5%) were placed more commonly than free gingival grafts. (18.75%) The prevalence of connective tissue graft was more when compared to free gingival graft at 36-55 years of age. Connective tissue graft was done more commonly in the age group of 15-35 years. Prevalence of connective tissue grafts was more in males than in females. Within the limits of the study, it was found that connective tissue graft (CTG) procedures performed more than free gingival graft (FGG) procedures following the gold standard for root coverage in gingival recession treatment.
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Nelson, Stephen W. "The Subpedicle Connective Tissue Graft." Journal of Periodontology 58, no. 2 (February 1987): 95–102. http://dx.doi.org/10.1902/jop.1987.58.2.95.
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Breault, Lawrence G., Sung Y. Lee, and Nicole E. Mitchell. "Fixed Prosthetics with a Connective Tissue and Alloplastic Bone Graft Ridge Augmentation: A Case Report." Journal of Contemporary Dental Practice 5, no. 4 (2004): 111–22. http://dx.doi.org/10.5005/jcdp-5-4-111.
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Abstract Augmentation of the partially edentulous ridge can significantly improve the final prosthodontic rehabilitation. For enhancing soft tissue contours in the anterior region, the subepithelial connective tissue graft is the treatment of choice. The combination of connective tissue grafts with alloplastic bone graft material can optimize the ridge augmentation and reduce post extraction defects. The aim of this clinical report is to describe the use of subepithelial connective tissue in conjunction with an alloplastic bone graft for augmentation of a maxillary anterior ridge prior to prosthetic rehabilitation. Citation Breault LG, Lee SY, Mitchell NE. Fixed Prosthetics with a Connective Tissue and Alloplastic Bone Graft Ridge Augmentation: A Case Report. J Contemp Dent Pract 2004 November;(5)4:111-122.
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Park, Jae-Young, Wan-Su Kim, Woo-Hyuk Yun, Yun-Sang Kim, Hyung-Keun You, Hyung-Shik Shin, and Sung-Hee Pi. "Connective tissue graft for root coverage." Journal of the Korean Academy of Periodontology 38, no. 2 (2008): 231. http://dx.doi.org/10.5051/jkape.2008.38.2.231.
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Jafri, Zeba, and Nafis Ahmad. "Treating Multiple Gingival Recessions by Pouch and Tunnel Connective Tissue Graft Technique." Indian Journal of Dental Education 9, no. 3 (2016): 189–91. http://dx.doi.org/10.21088/ijde.0974.6099.9316.9.
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Herford, Alan S., Todd C. Cooper, Carlo Maiorana, and Marco Cicciù. "Vascularized Connective Tissue Flap for Bone Graft Coverage." Journal of Oral Implantology 37, no. 2 (April 1, 2011): 279–85. http://dx.doi.org/10.1563/aaid-joi-d-09-00146.1.
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Abstract Alveolar defects are characterized by missing soft and hard tissues. It is often necessary to combine secondary procedures to address the soft-tissue component. The authors describe a technique that uses a split-thickness flap design that is placed over the crest of the remaining ridge and extends in a palatal direction. This allows advancement of the flap with its exposed connective tissue over the bone graft and provides restoration of both bone and keratinized tissue. Seventeen patients with defects involving the anterior maxilla who required grafting procedures were including in this study. All patients had an autogenous bone graft (n = 17) combined with osseointegrated implants (n = 41). A split-thickness flap design was used at the time of bone graft placement (primary) in 9 patients and at the time of implant uncovering (secondary) in 8 patients. There were no cases of flap necrosis or dehiscence with exposure of the bone graft. All patients demonstrated an increase in keratinized tissue involving the peri-implant area. An apical repositioned split-thickness flap provides an increased zone of keratinized tissue with improved esthetics and implant maintenance. This technique can be performed simultaneously with the grafting procedure, thus avoiding extensive undermining of the adjacent soft tissue.
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Matsumura, Akiko, Hiroyuki Konobu, Hiroshi Nakaya, and Kyuichi Kamoi. "Effects of Subepithelial Connective Tissue Graft for Root Coverage. Subepithelial Connective Tissue Treatment." Nihon Shishubyo Gakkai Kaishi (Journal of the Japanese Society of Periodontology) 40, no. 2 (1998): 151–61. http://dx.doi.org/10.2329/perio.40.151.
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Segal, Joshua, Monika Patel, Henry Woo, and Rachel Pruitt. "Pseudoaneurysm of the Greater Palatine Vessel Following Subepithelial Connective Tissue Graft." Journal of Oral Implantology 45, no. 6 (December 27, 2019): 483–85. http://dx.doi.org/10.1563/aaid-joi-d-19-00178.
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Subepithelial gingival connective tissue grafts are a common surgical procedure performed in periodontal and implant surgery. This versatile procedure has many indications including tooth root coverage, thickening of gingiva, and improvement of the quality of the crestal gingiva. Several techniques have been described for graft harvest from the palate. Reported complications from these techniques include pain, inflammation, bleeding, flap necrosis, and infection in the donor site. We report a previously unpublished complication following subepithelial gingival connective tissue graft from the palate: pseudoaneurysm of the greater palatine vessel.
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Kim, Jeong-Hyun, Yeek Herr, Young-Hyuk Kwon, Joon-Bong Park, and Jong-Hyuk Chung. "Root coverage using subepithelial connective tissue graft." Journal of the Korean Academy of Periodontology 38, no. 1 (2008): 91. http://dx.doi.org/10.5051/jkape.2008.38.1.91.
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Badylak, S. F., J. P. Toombs, K. D. Shelbourne, M. C. Hiles, G. C. Lantz, D. Van Sickle, and S. W. Aiken. "Small Intestinal Submucosa as an Intra-Articular Ligamentous Graft Material: A Pilot Study in Dogs." Veterinary and Comparative Orthopaedics and Traumatology 07, no. 03 (1994): 124–28. http://dx.doi.org/10.1055/s-0038-1633133.
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SummaryThis pilot study was performed to determine the potential for using small intestinal submucosa (SIS) xenografts for intra-articular ligament reconstruction. Porcine SIS was used to replace the excised cranial cruciate ligament (CCL) in five normal dogs. Grafts were evaluated histologically at 10, 12, 16, and 26 weeks after implantation. Two grafts were evaluated biomechanically at 26 weeks. All of the SIS neoligaments appeared macroscopically as white fibrous bands. The histological appearance progressed, with time, from disorganized immature connective tissue to large bundles of organized connective tissue, covered by a synovial membrane, that resembled the native CCL. There was no histological evidence of immune-mediated nor any foreign body reaction to the xenogeneic SIS graft material. The neoligaments 26 weeks after implantation had a maximum force to failure that was 16.2 and 21.4 times greater than the original SIS graft material and were 7.6 and 11.1 percent as strong as the contralateral control CCLs. We conclude that porcine SIS, used as an intra-articular graft material to replace the normal CCL in dogs, supported host tissue ingrowth, remodelled to form a ligamentous structure, and is worthy of further investigation.Small intestinal submucosa was used to replace the excised cranial cruciate ligament (CCL) in five normal dogs. The histo-logical appearance of the grafts progressively changed, with time, from disorganized immature connective tissue to large bundles of organized connective tissue that resembled the native CCL. Graft strength increased between implantation and 26 weeks after the operation, however remained weaker than controls.
Dissertations / Theses on the topic "Connective tissue - Graft"
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Rotenberg, Shaun. "Blood Flow, Tissue Thickness, and Molecular Changes during Connective Tissue Graft Early Healing." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1273335634.
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Anderson, Eric Paul. "Pre-Wounding and Connective Tissue Grafts: A Pilot Investigation." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306903367.
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Tsolaki, Ioanna. "Connective Tissue Grafts and Surgical Delay: Clinical and Biochemical Characterization." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1339814710.
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Chiquito, Gesilda Correia de Melo. "Comparação entre sutura e cola de fibrina derivada do veneno de serpente para fixação de enxerto de tecido conjuntivo na correção de recessões teciduais marginais /." Botucatu : [s.n.], 2006. http://hdl.handle.net/11449/99909.
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Orientador: Luiz Eduardo NaresseBanca: Celso Vieira de Souza Leite
Banca: Paulo Antonio Rodrigues
Banca: Pedro César Garcia de Oliveira
Banca: José Carlos Yamashita
Resumo: O presente estudo foi desenvolvido com o objetivo de avaliar as características pós-operatórias de superfícies radiculares expostas tratadas com enxerto de tecido conjuntivo, com duas técnicas de fixação do enxerto. O estudo envolveu 42 pacientes, que de maneira randomizada constituíram dois grupos iguais de estudo, denominados teste e controle, com 21 pacientes em cada um deles. No grupo teste o enxerto foi fixado ao leito receptor com adesivo de fibrina derivado de veneno de serpente e no grupo controle a fixação dos tecidos foi realizada com fio de sutura poligalactina 910. A idade dos pacientes variou entre 19 e 49 anos e estes apresentavam defeitos de recessão gengival incluídos nas classes I e II de Miller. Os controles foram realizados avaliando-se parâmetros clínicos tais como: tempo cirúrgico, tempo de hemostasia, presença de eritema, alteração de hálito e sabor, grau de recobrimento radicular, altura da recessão, profundidade de sondagem vestibular, nível de inserção clínica, índice de placa, índice gengival, quantidade de gengiva inserida, mucosa ceratinizada e a estética, com registros no momento pré-operatório, trans-operatório e aos 7, 14, 21, 30, 60 e 90 dias de pós-operatório. A análise comparativa entre o momento inicial e o final em cada um dos grupos mostrou resultados estatisticamente significantes, com melhores resultados ao término do estudo para todas as variáveis estudadas. Ao final do estudo, observamos entre os grupos, resultados estatisticamente significantes para as variáveis; tempo cirúrgico, quantidade de gengiva inserida e profundidade de sondagem vestibular, com melhores resultados nos pacientes do grupo teste. Com as demais variáveis não foram observadas diferenças significantes, inclusive para a estética alcançada.
Abstract: The present study aimed to evaluate the postoperative characteristics of exposed root surfaces treated with connective tissue graft, with two different techniques to fix it. The study involved 42 patients, randomly of two equal groups named test and control, each one with 21 patients. In the test group, the graft was fixed to exposed root surfaces with fibrin adhesive derived from serpent venom and in the control group this graft was accomplished with a conventional suture. The age of the patients ranged between 19 and 49 years old and they presented this defect named Millerþs class I and II. Controls were carried out by assessing clinical parameters such as: surgical time, hemostasis time, presence of erythema, breath and taste alteration, root coverage degree, recession height, vestibular probing depth, clinical insertion level, plaque index, gingival index, amount of attached gum, keratinized mucosa and aesthetics, with records at preoperative and trans-operative moments and at 7, 14, 21, 30, 60 and 90 days, postoperatively. The comparative analysis between the initial and final moments in each group showed statistically significant results, with the best results at the end of the study for all variables studied. Statistically significant results were observed at the end of the study between the groups only for the following variables; surgical time, amount of attached gum and vestibular probing depth, with the best results for patients in the test group. Significant differences were not observed in the remaining variables, including aesthetics. This study concluded that the fibrin adhesive derived from serpent venom presented favorable characteristics when applied in periodontal surgery for root coverage in recessions of marginal tissue, Millerþs Class I and II, as a suture substitute.
Doutor
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Rojo, Xicart Ernest. "Soft tissue volume gain around dental implants after abutment connection surgery using autogenous subepithelial connective tissue grafts harvested from the palate or tuberosity. A randomized prospective clinical study." Doctoral thesis, Universitat Internacional de Catalunya, 2017. http://hdl.handle.net/10803/586354.
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The aim of the present study is to compare the volume gain around dental implants when a subepithelial connective tissue graft (SCTG) from palate or tuberosity is used randomly. The most studied donor area for soft tissue augmentation has been the autogenous connective tissue from the palate. However recent studies has affirmed that tuberosity tissue may possess better tissue qualities for soft tissue volume augmentation.
It has been shown that tuberosity connective tissue is more dense with less fat and glandular tissue. Therefore, it could be speculated that this firmer tissue will have less shrinkage and achieve more soft tissue gain.
In the present study 32 patients with 36 implants with localized volume deficiency has been included and received randomly a SCTG from palate or tuberosity. Measurements using an intraoral optical scan has been done at baseline and 3 months. Also 20 samples were obtained at baseline for immunohistochemistry and descriptive histological analysis.
In conclusion both groups obtained volume gain at 3 months. No statistical significant differences were found. Even though a tendency of better results was observed for patients who received SCTG from tuberosity.L’objectiu del present estudi es comparar el guany de volum al voltant d’implants dentals després d’haver utilitzat aleatoriament injert de teixit conectiu subepitelial de paladar o de tuberositat. L’àrea donant més utilitzada per realitzat procediments d’augment gingival ha estat sempre la zona del paladar. Tot i que estudis recents han demostrat que la zona de la tuberositat pot ser una bona alternativa degut a que pot tenir millors propietats per l’augment gingival. S’ha demostrat darrerament que el teixit conectiu de la tuberositat és més dens i conté menys teixit gras i glandular. Això pot comportar que aquest teixit no es contraigui tant i que per tant pugui aconseguir millors resultats en quant a guany de volum. En aquesta investigació 32 pacients portadors de 35 implants amb defecte de volum vestibular han rebut cirugía d’augment de teixit tou utilitzant injert de teixit conectiu de paladar o tuberositat. S’han realitzat mesures utilitzant un escáner intraoral a l’inici de l’estudi i 3 mesos després. També s’ha realitzat estudi histològic i d’immunohistoquímica de 20 mostres. Com a conclusió, els dos grups de l’estudi han aconseguit guanyar volum de teixit tou als 3 mesos. No s’han detectat diferencies estadísticament significatives entre els grups. Tot i així s’ha observat una tendencia a millors resultats en el grup de pacients que han rebut injert de teixit tou de la tuberositat.
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Chiquito, Gesilda Correia de Melo [UNESP]. "Comparação entre sutura e cola de fibrina derivada do veneno de serpente para fixação de enxerto de tecido conjuntivo na correção de recessões teciduais marginais." Universidade Estadual Paulista (UNESP), 2006. http://hdl.handle.net/11449/99909.
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chiquito_gcm_dr_botfm.pdf: 519392 bytes, checksum: d24af1dc24abca95f3a571e391642cf3 (MD5)O presente estudo foi desenvolvido com o objetivo de avaliar as características pós-operatórias de superfícies radiculares expostas tratadas com enxerto de tecido conjuntivo, com duas técnicas de fixação do enxerto. O estudo envolveu 42 pacientes, que de maneira randomizada constituíram dois grupos iguais de estudo, denominados teste e controle, com 21 pacientes em cada um deles. No grupo teste o enxerto foi fixado ao leito receptor com adesivo de fibrina derivado de veneno de serpente e no grupo controle a fixação dos tecidos foi realizada com fio de sutura poligalactina 910. A idade dos pacientes variou entre 19 e 49 anos e estes apresentavam defeitos de recessão gengival incluídos nas classes I e II de Miller. Os controles foram realizados avaliando-se parâmetros clínicos tais como: tempo cirúrgico, tempo de hemostasia, presença de eritema, alteração de hálito e sabor, grau de recobrimento radicular, altura da recessão, profundidade de sondagem vestibular, nível de inserção clínica, índice de placa, índice gengival, quantidade de gengiva inserida, mucosa ceratinizada e a estética, com registros no momento pré-operatório, trans-operatório e aos 7, 14, 21, 30, 60 e 90 dias de pós-operatório. A análise comparativa entre o momento inicial e o final em cada um dos grupos mostrou resultados estatisticamente significantes, com melhores resultados ao término do estudo para todas as variáveis estudadas. Ao final do estudo, observamos entre os grupos, resultados estatisticamente significantes para as variáveis; tempo cirúrgico, quantidade de gengiva inserida e profundidade de sondagem vestibular, com melhores resultados nos pacientes do grupo teste. Com as demais variáveis não foram observadas diferenças significantes, inclusive para a estética alcançada.
The present study aimed to evaluate the postoperative characteristics of exposed root surfaces treated with connective tissue graft, with two different techniques to fix it. The study involved 42 patients, randomly of two equal groups named test and control, each one with 21 patients. In the test group, the graft was fixed to exposed root surfaces with fibrin adhesive derived from serpent venom and in the control group this graft was accomplished with a conventional suture. The age of the patients ranged between 19 and 49 years old and they presented this defect named Millerþs class I and II. Controls were carried out by assessing clinical parameters such as: surgical time, hemostasis time, presence of erythema, breath and taste alteration, root coverage degree, recession height, vestibular probing depth, clinical insertion level, plaque index, gingival index, amount of attached gum, keratinized mucosa and aesthetics, with records at preoperative and trans-operative moments and at 7, 14, 21, 30, 60 and 90 days, postoperatively. The comparative analysis between the initial and final moments in each group showed statistically significant results, with the best results at the end of the study for all variables studied. Statistically significant results were observed at the end of the study between the groups only for the following variables; surgical time, amount of attached gum and vestibular probing depth, with the best results for patients in the test group. Significant differences were not observed in the remaining variables, including aesthetics. This study concluded that the fibrin adhesive derived from serpent venom presented favorable characteristics when applied in periodontal surgery for root coverage in recessions of marginal tissue, Millerþs Class I and II, as a suture substitute.
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Lazzari, Thiago Rodrigues [UNESP]. "Influência da colocação de enxerto de tecido conjuntivo ao redor de implantes instalados em áreas estéticas: estudo clínico controlado e randomizado." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151299.
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Os implantes dentários têm sido utilizados desde meados da década de 50, e inúmeros estudos garantem a confiabilidade para sua utilização, dessa forma o implante tem se tornado uma prática comum entre os cirurgiões dentistas. À medida que sua utilização vem crescendo, suas complicações também aumentaram, principalmente quando instalados em áreas estéticas, onde há deficiência de tecido conjuntivo perimplantar. O objetivo deste estudo clínico controlado randomizado foi avaliar o aumento do volume de tecido conjuntivo perimplantar em implantes instalados em áreas estéticas com a utilização de enxerto de tecido conjuntivo. Para este estudo, foi utilizada uma amostra de 42 indivíduos com necessidade de implantes em áreas estéticas, onde o grupo teste (n=20) recebeu enxerto de tecido conjuntivo sobre os implantes e o grupo controle (n=22) recebeu apenas o implante dental sem a colocação de enxerto de tecido conjuntivo. Para análise do aumento do tecido perimplantar foram realizadas medidas clínicas no baseline, trans-operatório e pós-operatório de 4 meses. Após 4 meses o grupo teste apresentou diferença significativa no aumento de tecido conjuntivo, uma média 3,35±1,08mm / 3,62±1,08mm na vestibular e sobre o rebordo respectivamente, quando comparado ao grupo controle 2,08±0,62mm/ 2,51±0,53mm na vestibular e sobre o rebordo respectivamente. Houve diferença significativa na diminuição da deiscência óssea vestibular para o grupo teste uma média de 0,4±0,8mm contra 1,0±0,8mm do grupo controle (p<0,05). Não houve diferença significativa quanto a dor relatada pelos pacientes e a quantidade de analgésicos ingeridos. Pode-se concluir que após 4 meses o grupo teste apresentou aumento no volume de tecido conjuntivo, diminuição da deiscência óssea vestibular e os pacientes do grupo teste não sentiram uma dor maior que o grupo controle.
Dental implants have been used since 1950, and as numerous studies ensure reliability for its use, they implant have become a common practice among dentists. However , complications have also risen from its increased application, especially when they are installed in esthetic areas, where there is deficiency of periimplant soft tissue. The purpose of this randomized controlled trial was to evaluate the increase in volume periimplantar soft tissue esthetic areas with the use of connective tissue graft. Individuals in need of implants in esthetic areas were included, and divided in two groups: test group (n = 20) received a tissue graft over the implants and the control group (n = 22) received only dental implant without the connective tissue graft placement. For the analysis of periimplantar tissue augmentation, baseline, trans-operative and postoperative measurements were performed. After 4 months, the test group presented a significant difference in mean connective tissue augmentation, with 3.35 ± 1.08 mm in the vestibular area and 3.62 ± 1.08 mm on the ridge when compared to the control group, with 2.08 ± 0 62 mm in the vestibular area and 2.51 ± 0.53mm on the ridge. There was a significant difference in the reduction of vestibular bone dehiscence for the test group, with a mean of 0.4 ± 0.8 mm versus 1.0 ± 0.8 mm in the control group (p <0.05). There was no significant difference in pain reported by patients and the amount of post-operative analgesics ingested taken. It can be concluded that after 4 months the use of connective tissue graft test group resulted in an increase in connective tissue volume, decreased vestibular bone dehiscence with similar amount of post-operative pain than the control group.
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Gobbato, Luca. "Patients’ morbidity and root coverage outcomes by means of coronally advanced flap and the application of sub-eptithelial connective tissue graft with different surgical procedures." Doctoral thesis, Universitat Internacional de Catalunya, 2016. http://hdl.handle.net/10803/387224.
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Numerous surgical periodontal techniques have been introduced, over the years, to correct
labial, gingival recessions defects. Aesthetic concerns are usually the reason to perform
these procedures. The aim of this project was to evaluate by means of an image analysis
system the efficacy of two different surgical procedures with and without the use of a subepithelial
connective tissue graft for the treatment of miller class one and two maxillary
gingival recession. Therefore the aim of the first study was to compare the effectiveness of
root coverage with coronally advanced flap alone versus a connective tissue graft used in
combination with a coronally advanced flap in the treatment of single gingival recessions
by analyzing the data with an open source image-processing program.
The result of this study showed better outcomes in terms of recession reduction after 12
months when the coronally advanced flap was combined with the connective tissue graft.
Adjunctive application of a connective tissue graft under a coronally advanced flap
increased the probability of achieving complete root coverage in maxillary Miller Class I
and II defects (61.5% vs. 83.3%, p=0.38). The second article is a case demonstration of the
benefit attained using the CAF+CTG in order to meet the patient’s needs and fulfilling the
clinical outcomes.
More recently, several authors have proposed the application of a connective tissue graft
using a tunneling technique, which has recently gained popularity in periodontal
mucogingival therapy. However, there is scarce data available regarding postoperative
patient-centered outcomes after tunneling technique as compared to other surgical
procedures for the treatment of gingival recession. The aim of the second randomizedcontrolled
clinical trial was to compare the patient morbidity and root coverage outcomes
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of a connective tissue graft used in combination with a coronally advanced flap or tunneling
technique.
Fifty patients completed the study. Healing was uneventful for all test and control patients.
The connective tissue graft used in combination with a coronally advanced flap group
reported less pain or discomfort in all four sections of the questionnaire: Pain experienced
within the mouth as a whole, pain experienced throughout the day, pain experienced at
night and edema experienced after the surgery (p=0.002, p=0.001, p=0.001 and p=0,001,
respectively). Both treatments showed clinical efficacy in terms of root coverage as no
differences per groups were observed in percentage of root coverage (87% vs. 85%, p=704)
or patients with complete root coverage (60% vs. 52%, p=0.569).
The tunneling technique is associated with a greater incidence of pain and discomfort
compared to the connective tissue graft used in combination with a coronally advanced flap
in early postoperative periods, as well as longer chair time. Both treatments showed similar
clinical efficacy in terms of root coverage.
The results of this study may influence the surgeon’s choice on which root coverage
procedure perform considering the need of more chair time and more pain killer assumption
with the tunnel technique.
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Rebele, Stephan F. [Verfasser], and Markus [Akademischer Betreuer] Hürzeler. "Tunnel technique with connective tissue graft versus coronally advanced flap with enamel matrix derivative for root coverage : a randomized controlled clinical trial using 3D digital measuring methods." Freiburg : Universität, 2015. http://d-nb.info/1119805813/34.
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Reino, Danilo Maeda. "Tratamento de retrações gengivais em pacientes fumantes graves através de duas técnicas cirúrgicas: estudo clínico, laboratorial e histológico." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/58/58132/tde-19032010-105758/.
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Objetivo: Este trabalho avaliou o recobrimento radicular obtido por duas técnicas de cirurgia plástica periodontal em pacientes fumantes graves, através de análises clínica, histológica e laboratorial. Materiais e Métodos: Foram selecionados 20 pacientes fumantes graves que apresentavam ao menos duas retrações classes I ou II de Miller em dentes não molares, bilateralmente. Os parâmetros clínicos avaliados foram: profundidade de sondagem (PS), nível clínico de inserção (NCI), altura (AR) e largura das retrações (LR), altura (AM) e espessura da mucosa queratinizada (EM) e altura e base das papilas mesiais e distais à retração. Um lado recebeu retalho posicionado coronalmente, enquanto no outro lado foi utilizada a técnica de retalho estendido. Ambos os procedimentos foram associados ao enxerto de tecido conjuntivo subepitelial. Biópsias foram feitas durante os procedimentos cirúrgicos para quantificação dos vasos sanguíneos utilizando de avaliação imunohistoquímica. Coleta de saliva foi realizada pré tratamento e após 3 e 6 meses, como forma de avaliar, por meio de ensaio imunoenzimático (ELISA), a exposição ao fumo durante o período completo do estudo. Resultados: Os parâmetros clínicos avaliados não apresentaram diferença estatística entre grupos ou intra-grupos. Os pacientes mantiveram a mesma exposição ao fumo durante os 6 meses avaliados. O recobrimento radicular obtido foi baixo para ambas as técnicas estudadas (43,18% para técnica padrão e 44,52% para técnica teste). O retalho apresentou menor quantidade de vasos sanguíneos do que o tecido do enxerto (13,49 ± 5,48 contra 18,69 ± 4,87, p= 0,0001). Conclusão: O fumo prejudicou intensamente os resultados de ambas as técnicas empregadas, reduzindo o recobrimento radicular, a frequência de recobrimento total e a quantidade de vasos sanguíneos nos tecidos. Não houve diferença entre as técnicas testadas.Background: The aim of this study was to evaluate the root coverage obtained by two different periodontal plastic techniques in severe smokers, analyzing clinical, laboratorial and histological parameters. Methods: Twenty severe smokers were selected. Each patient had bilateral Miller class I or II gingival recessions in non-molar teeth. Clinical measurements of probing pocket depth (PPD), clinical attachment level (CAL), recession height (RH) and recession width (RW), keratinized mucosa height (KMH) and keratinized mucosa thickness of (KMT) and height and width of the adjacent papillae were determined at baseline, 3 and 6 months. One side received coronally positioned flap, while the other side received the extended flap technique, both procedures in conjuction with the subeptelial connective tissue graft (SCTG). Biopsies from SCTGs and flaps were prepared for immunohistochemistry. Blood vessels were identified and counted by coexpression of Factor-VIII related antigen stained endothelial cells. Salivary cotinine samples were taken at baseline and after 3 and 6 months, as an indicator of the level of exposure to nicotine. Results: Between groups or intra groups analysis showed no statistical differences for the evaluated clinical parameters. Patients maintained the same exposure to smoke during the 6 months evaluation periods. Both techniques had low root coverage (standard technique: 43.18% and test technique: 44.52%). Histomorphometry of biopsies revealed blood vessel densities of 13.49 ± 5.48 vessels/200x field for the flaps, and of 18.69 ± 4.87 vessels/200x field for the grafts (p = 0.0001). Conclusion: The extend flap technique did not differ from standart technique for recession treatment of severe smoking patients.
Book chapters on the topic "Connective tissue - Graft"
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Dibart, Serge, and Mamdouh Karima. "Subepithelial Connective Tissue Graft." In Practical Periodontal Plastic Surgery, 28–31. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2017. http://dx.doi.org/10.1002/9781119014775.ch6.
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Krstić, Radivoj V. "Graft Rejection. Role of Free Connective Tissue Cells." In General Histology of the Mammal, 234–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70420-8_115.
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Martins, D. S., L. Azevedo, N. Santos, T. Marques, C. Alves, and A. Correia. "3D analysis of the clinical results of VISTA technique combined with connective tissue graft." In Biodental Engineering V, 65–74. London, UK; Boca Raton, FL: Taylor & Francis Group, [2019] |: CRC Press, 2019. http://dx.doi.org/10.1201/9780429265297-14.
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Kulkarni, Sudhindra. "Free Connective Tissue Graft." In Treatment Planning Steps in Oral Implantology: A Color Atlas, 445. Jaypee Brothers Medical Publishers (P) Ltd., 2018. http://dx.doi.org/10.5005/jp/books/14127_87.
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Blašković, Marko, and Dorotea Blašković. "Peri-Implant Soft Tissue Augmentation." In Dentistry. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.101336.
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The peri-implant soft tissue (PIS) augmentation procedure has become an integral part of implant-prosthetic rehabilitation. Minimal width of keratinized mucosa (KM) of 2 mm is deemed necessary to facilitate oral hygiene maintenance around the implant and provide hard and soft peri-implant tissue stability. PIS thickness of at least 2 mm is recommended to achieve the esthetic appearance and prevent recessions around implant prosthetic rehabilitation. The autogenous soft tissue grafts can be divided into two groups based on their histological composition—free gingival graft (FGG) and connective tissue graft (CTG). FGG graft is used mainly to increase the width of keratinized mucosa while CTG augment the thickness of PIS. Both grafts are harvested from the same anatomical region—the palate. Alternatively, they can be harvested from the maxillary tuberosity. Soft tissue grafts can be also harvested as pedicle grafts, in case when the soft tissue graft remains attached to the donor site by one side preserving the blood supply from the donor region. Clinically this will result in less shrinkage of the graft postoperatively, improving the outcome of the augmentation procedure. To bypass the drawback connected with FGG or CTG harvesting, substitutional soft tissue grafts have been developed.
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"Connective-Tissue Graft for Repair of the Tympanomeatal Flap." In Tympanoplasty, Mastoidectomy, and Stapes Surgery, edited by Ugo Fisch. Stuttgart: Georg Thieme Verlag, 2008. http://dx.doi.org/10.1055/b-0034-84534.
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Bopiah, Cary. "Inverted Pedicled Connective Tissue Palatal Graft for the Correction of an Anterior Soft Tissue Defect." In Treatment Planning Steps in Oral Implantology: A Color Atlas, 485. Jaypee Brothers Medical Publishers (P) Ltd., 2018. http://dx.doi.org/10.5005/jp/books/14127_96.
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Nienaber, Christoph A., and Mario Lachat. "Aortic Aneurysm." In Manual of Cardiovascular Medicine, 141–52. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780198850311.003.0017.
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Aortic aneurysms are defined as the presence of a vascular diameter that exceeds 1.5 times the normal diameter. Aneurysms are often associated with hypertension, smoking, and inherited connective tissue disease. The majority are confined to the abdominal aorta and are of infrarenal location in the overwhelming preponderance of cases. Besides atherosclerotic vascular disease, potential causes include Ehlers-Danlos syndrome, Marfan’s syndrome, and Loeys-Dietz syndrome, as well as Takayasu’s disease and chronic infections, such as syphilis. Complications include compression of surrounding tissue, corrosion of structures, as well as rupture with fatal bleeding. The risk of rupture depends on the diameter and is particularly high at 5.5 cm or higher and in the presence of arterial hypertension in males, as well as in inflammatory processes. Treatment involves surgery, as well as stent graft implantations.
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Clough, Rachel E., Xun Yuan, and Christoph A. Nienaber. "Acute aortic syndrome: aortic dissection—descending aortic dissection." In ESC CardioMed, edited by Raimund Erbel, 2598–600. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0617.
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The concept of an acute aortic syndrome (AAS) facilitates early identification of patients with chest pain due to an aortic cause, and expedites implementation of definitive treatment. Important differentials are acute coronary syndromes and pulmonary embolism. Patients with AAS should be evaluated using a combination of blood tests, electrocardiography, and imaging, such as computed tomography, echocardiography, and magnetic resonance imaging. Aortic dissection is the most common form of AAS. Risk factors include congenital factors such as connective tissue disease and bicuspid aortic valve, and acquired disease such as hypertension. Patients with evidence of aortic rupture or end-organ ischaemia require urgent intervention, which in cases of type A dissection is typically open surgery and in type B dissection, endovascular stent graft placement. The optimal treatment of patients with AAS is challenging and requires a multidisciplinary team approach. Further studies are required to fully characterize conditions within the AAS spectrum and to design individualized, patient-centred treatment.
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Clough, Rachel E., Xun Yuan, and Christoph A. Nienaber. "Acute aortic syndrome: aortic dissection—descending aortic dissection." In ESC CardioMed, edited by Raimund Erbel, 2598–600. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780198784906.003.0617_update_001.
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The concept of an acute aortic syndrome (AAS) facilitates early identification of patients with chest pain due to an aortic cause, and expedites implementation of definitive treatment. Important differentials are acute coronary syndromes and pulmonary embolism. Patients with AAS should be evaluated using a combination of blood tests, electrocardiography, and imaging, such as computed tomography, echocardiography, and magnetic resonance imaging. Aortic dissection is the most common form of AAS. Risk factors include congenital factors such as connective tissue disease and bicuspid aortic valve, and acquired disease such as hypertension. Patients with evidence of aortic rupture or end-organ ischaemia require urgent intervention, which in cases of type A dissection is typically open surgery and in type B dissection, endovascular stent graft placement. The optimal treatment of patients with AAS is challenging and requires a multidisciplinary team approach. Further studies are required to fully characterize conditions within the AAS spectrum and to design individualized, patient-centred treatment.
Conference papers on the topic "Connective tissue - Graft"
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Bose, S., J. Darsell, R. Kintner, K. Feely, H. L. Hosick, and A. Bandyopadhyay. "Controlled Porosity Ceramics for Bone Graft Applications." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1945.
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Abstract Significant research has already been done for the development of bioceramic materials with controlled microstructures using inert, bioactive and bioresorbable ceramics. Microporous implants with controlled pore size in the range of 100-600 μm have proven to be osteoconductive. A minimum pore size of 100 μm is necessary for tissue in-growth and to provide blood supply to the connective tissues to keep them viable and healthy. Bone in-growth takes place within the inter-connected pore channels near the surface and maintains its vascularity and long term viability, and the implant serves as a structural bridge or scaffold for bone formation. Controlled porosity ceramic scaffolds were fabricated using indirect fused deposition modeling (FDM), a commercially available rapid prototyping process, with alumina and tricalcium phosphate (TCP) ceramics. Pore size and pore volumes were varied by changing road width, road gap and slice thickness of the polymeric molds. Mechanical tests were conducted to understand the influence of porosity parameters on strength degradation. In vitro tests were carried out with human osteoblast (HOB) cells to understand the effects of porosity parameters on cell growth. The paper describes the effects of porosity on the biocompatibility and bio-mechanical properties of controlled porosity alumina and TCP scaffolds.
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Restrepo, Maria, Lucia Mirabella, Elaine Tang, Chris Haggerty, Mark A. Fogel, Anne Marie Valente, Doff B. McElhinney, and Ajit P. Yoganathan. "Investigation of Vessel Growth and its Impact on Hemodynamics in Patients With Lateral Tunnel Total Cavopulmonary Connection." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80329.
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Single ventricle heart defects affect 2 per 1000 live births in the US and are lethal if left untreated. The Fontan procedure used to treat these defects consists of a series of palliative surgeries to create the total cavopulmonary connection (TCPC), which bypasses the right heart. In the last stage of this procedure, the inferior vena cava (IVC) is connected to the pulmonary arteries (PA) using one of the two approaches: the extra-cardiac (EC), where a synthetic graft is used as the conduit; and the lateral tunnel (LT) where part of the atrial wall is used along with a synthetic patch to create the conduit. The LT conduit is thought to grow in size in the long term because it is formed partially with biological tissue, as opposed to the EC conduit that retains its original size because it contains only synthetic material. The growth of the LT has not been yet quantified, especially in respect to the growth of other vessels forming the TCPC. Furthermore, the effect of this growth on the hemodynamics has not been elucidated. The objective of this study is to quantify the TCPC vessels growth in LT patients from serial magnetic resonance (MR) images, and to understand its effect on the connection hemodynamics using computational fluid dynamics (CFD).
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Smith, Robert E., Nicole C. Docherty, P. Alex Smith, Duncan J. Maitland, and Alan C. Glowczwski. "A Vascular Access Port for Dialysis With a Polyurethane Foam Seal: A Pilot Study." In 2017 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/dmd2017-3318.
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End-Stage Renal Disease (ESRD) is a condition wherein the kidneys are incapable of removing toxins from the body. Over 660,000 Americans suffer from ESRD, with millions more in the early stages, known as chronic kidney disease [1]. The only cure for ESRD is a kidney transplant, but the majority of patients receive dialysis every 2–3 days to filter their blood while on the transplant waitlist. Efficient dialysis requires approximately 600 mL/min of flow, which is commonly achieved by directly connecting an artery to a vein in the arm. Such a shunt may be created with an intervening prosthetic graft or by suturing the vein to the artery directly (termed an arteriovenous fistula, or AVF). Though accepted as the gold standard, AVF’s may take >6 weeks to heal and become useable, and 35–50% will never become accessible [1]. Needle trauma to the AVF can weaken the vessel wall and produce aneurysms or hematomas, which leak blood, potentially causing infection or clotting off the AVF [2]. These complications are costly: hemodialysis patients on average cost Medicare over $84,000 per year, and Medicare is the primary payer for more than 80% of nearly 500,000 dialysis patients in the U.S. [1]. An improved dialysis access method is needed to address the clinical shortcomings and high costs associated with AVF’s. A device has been developed to improve clinical outcomes and to reduce the failure rates associated with AVF’s. This device is a type of vascular access port which integrates with the external wall of the venous portion of the AVF, providing structural support to the vessel and preventing the types of trauma which lead to aneurysmal dilation or hematoma formation. The top and bottom sections are implanted independently within the patient’s soft tissue, allowing them to separate gradually as the AVF dilates during maturation. The result is a palpable and easy-to-access port which should improve AVF longevity (Figure 1). Two unique design features were identified as key to the success of this vascular access port: 1. Type of membrane or seal 2. Proper tissue integration into the implant This technical brief examines the selection of the proper membrane or seal on the port.
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Tubaldi, Eleonora, Marco Amabili, and Michael P. Paidoussis. "Nonlinear Response of Shells Conveying Pulsatile Flow With Pulse-Wave Propagation." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66840.
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In deformable shells conveying pulsatile flow, oscillatory pressure changes cause local movements of the fluid and shell wall, which propagate downstream in the form of a wave. In biomechanics, it is the propagation of the pulse that determines the pressure gradient during the flow at every location of the arterial tree. In this study, a woven Dacron vascular prosthesis is modelled as a transversely isotropic circular cylindrical shell described by means of nonlinear Novozhilov shell theory. Flexible boundary conditions are considered to simulate connection with the remaining tissue. Nonlinear vibrations of the shell conveying pulsatile flow and subjected to pulsatile pressure are investigated taking into account the effects of the pulse-wave propagation. An input oscillatory pressure at the shell entrance is considered and it propagates down the shell causing a wave motion within the shell where, as a consequence, the pressure gradient and the flow velocity are functions of both the axial coordinate and time. For the first time in literature, coupled fluid-structure Lagrange equations for a non-material volume with wave propagation in case of pulsatile flow are developed. The fluid is modeled as a Newtonian inviscid pulsatile flow and it is formulated using a hybrid model based on the linear potential flow theory and considering the unsteady viscous effects obtained from the unsteady time-averaged Navier-Stokes equations. Contributions of pressure and velocity changes’ propagation are also considered in the pressure drop along the shell and in the pulsatile frictional traction on the internal wall in the axial direction. A numerical bifurcation analysis employs a refined reduced order model to investigate the dynamic behavior of a pressurized Dacron vascular graft conveying blood flow. A pulsatile time-dependent blood flow model is considered in order to study the effect of pressurization by applying the first and second harmonic of the physiological waveforms of velocity and pressure during the heart beating period. Geometrically nonlinear vibration response to pulsatile flow and transmural pulsatile pressure considering the propagation of pressure and velocity changes inside the shell are here presented via frequency-response curves and time histories. It is shown how traveling waves of pressure and velocity cause a delay in the radial displacement of the shell at different values of the axial coordinate. This study provides a deep insight into the currently unknown nonlinear behavior of vascular prostheses whose dynamic response can cause unwanted hemodynamic effects leading to failure. Indeed, it is well known that vascular prostheses mechanical properties are very different from those of natural arteries. In particular, the compliance mismatch between the host artery and the prosthesis causes a different wave speed resulting in a change in the performance of the cardiovascular system. In the near future, a more refined model to the one here presented will be applied to reproduce and compare the dynamic behavior of vascular prostheses and the human aorta, helping in vascular prostheses design and implementation.
Reports on the topic "Connective tissue - Graft"
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McGuire, Michael K., Michael Newman, Satheesh Elanovan, and E. Todd Scheyer. Connective Tissue Graft for Root Coverage. Touch Surgery Simulations, February 2017. http://dx.doi.org/10.18556/touchsurgery/2017.s0073.
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Moraschini, Vittorio, Monica Calasans-Maia, Alexandra Dias, Márcio Formiga, Suelen Sartoretto, and Jamil Shibli. Effectiveness of connective tissue graft substitutes for the treatment of gingival recessions using coronally advanced flap: a network meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, June 2020. http://dx.doi.org/10.37766/inplasy2020.6.0075.
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