Academic literature on the topic 'Mandibular condyle Mandible'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Mandibular condyle Mandible.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Mandibular condyle Mandible"
1
Xiao, Fang, Hidetaka Hayashi, Tadashi Fujita, Maya Shirakura, Yuji Tsuka, Eri Fujii, Kazuo Tanne, and Kotaro Tanimoto. "Role of articular disc in cartilaginous growth of the mandible in rats." APOS Trends in Orthodontics 7 (February 1, 2017): 29–34. http://dx.doi.org/10.4103/2321-1407.199176.
Full textAbstract:
Displacement of the temporomandibular joint (TMJ) disc causes a lateral shift of the mandible and less-developed and/or distally located mandible unilaterally and bilaterally, respectively, if occurred in growing individuals. The purpose of this study was to evaluate mandibular condylar growth in growing rats after TMJ discectomy and to explore a certain significant role of articular disc in the TMJ in mandibular or cartilaginous growth. Eighteen 4-week-old Wistar strain male rats were divided into two groups with nine in each group, i.e., rats with TMJ discectomy (discectomy group) and only sham operation (control group). Four weeks after initiating the experiment, morphometric analyses of the mandible were performed using a rat and mouse cephalometer and micro-computed tomography. Then, the mandibular condyles were subjected to histomorphometric analyses. Condylar and mandibular growth was reduced significantly in the discectomy group than in the control group. In the discectomy group, the condyle also became flatter and smaller. In addition, the 4-layer structure of condylar cartilage was unclear with thicker fibrous and thinner lower hypertrophic layers in the discectomy group when compared to the controls. It is shown that resection of the articular disc substantially affects condylar and mandibular growth in terms of the cartilaginous growth, suggesting that TMJ disc is indispensable for maintaining normal growth of the condyle and mandible, leading to optimal development of the TMJ and the entire mandible.
2
Liu, Chang, Sawa Kaneko, and Kunimichi Soma. "Effects of a Mandibular Lateral Shift on the Condyle and Mandibular Bone in Growing Rats." Angle Orthodontist 77, no. 5 (September 1, 2007): 787–93. http://dx.doi.org/10.2319/091806-377.
Full textAbstract:
Abstract Objective: To examine the effects of mandibular lateral shift on the growth and morphology of the condyle and mandibular bone in growing rats. Materials and Methods: A maxillary resin plate was designed to displace 4-week-old rat mandibles 2 mm to the left during closure. The plate was cemented, and the rats were killed after 2, 4, 8, or 12 weeks. Gross dimensions of the condylar head were measured. Radiographic films of the mandibles were exposed, and selected measurements were made. The newly formed bone in the condyle was evaluated with periodic acid and Schiff's reagent (PAS) staining. Results: The length of the condylar head was greater on the ipsilateral side compared with the contralateral side. The experimental rats developed an asymmetric mandible, shorter in horizontal dimension but longer in the vertical dimension on the ipsilateral side. The mandibular growth direction was also affected, with the mandible on the ipsilateral side growing in a more anterior and superior direction. The amount of newly formed bone was greater in the superior subchondral region but lower in the posterior subchondral region on the ipsilateral side compared with the contralateral side. Conclusions: Mechanical stimuli delivered by a functional shift produce a series of morphological and histological responses in the condyle and lead to condylar and mandibular asymmetry in rats.
3
Zarasade, Lobredia, Iswinarno Doso Saputro, and Nadia Tamara Putri. "Mandibular Condyle Fracture Management Outcome in Department of Plastic Reconstructive and Aesthetic Surgery, Dr. Soetomo Hospital on Period 2015- 2018." Jurnal Rekonstruksi dan Estetik 5, no. 1 (January 6, 2021): 35. http://dx.doi.org/10.20473/jre.v5i1.24323.
Full textAbstract:
Background : The high incidence of condyle mandible fractures is due to the role of the mandibular ramus which has stronger resistance compared to head condyle mandibular. The management of condyle fractures is still controversial because of the prognosis. Management of condyle fractures of the mandible should aim at maximally reducing morbidity, postoperative complications, and aesthetic and / or functional impairment.Methods: The medical records of 56 patients with condyle mandible fractures who presented at the Dr. Soetomo Hospital Surabaya from January 2015 to December 2018 were reviewed retrospectively. We analyzed characteristics of the patients (age), type of fractures, management of fractures, and outcome from management.Results : This study shows that a total of 56 patients, 22 were patients with mandibular condyle fractures only and 34 patients with mandibular condyle fractures with other maxillofacial fractures. The studied showed that male patients (84%) is more than female patients (16%). The mean age of the patients involved in this study was 28.25 ± 1.78 years, with the youngest being 12 years old and the oldest being 67 years old. The results of the overall study with good occlusion results in 48 patients, it was found that 22 patients were treated with closed reduction and 26 patients with open reduction were performed.Conclusions: The results of condyle mandibula fracture management in Dr. Soetomo Hospital has been according to the indication with the treatment indication along with the result of good management.
4
Oksayan, Ridvan, Oral Sokucu, and Neslihan Ucuncu. "Effects of bite-jumping appliances on mandibular advancement in growing rats: A radiographic study." European Journal of Dentistry 08, no. 03 (July 2014): 291–95. http://dx.doi.org/10.4103/1305-7456.137624.
Full textAbstract:
ABSTRACT Objective: The aim was to evaluate the effects of the use of mandibular advancement appliances on mandibular growth in growing rats. Materials and Methods: Twenty-four 8-week-old male Wistar albino rats were randomly divided into two experimental groups (12 rats each): Group I was a control group, and Group II was the mandibular advancement appliance group. A functional bite-jumping appliance was used in Group II to promote mandibular advancement. Anatomical changes in the condyle and mandible were evaluated by comparing radiographic results from before and after the study, with angular and linear measurements. Friedman and Mann-Whitney U-tests were used in statistical analysis. Results: According to the radiographic results, the growth of mandibles and condyles in Group II was significantly greater than with the length of the condylar process (A-B) and distance from condyle to menton (A-D) variables (P < 0.05). In addition, Group I showed greater mandibular base growth than did Group II (P < 0.05). Conclusions: We conclude that the use of an intraoral bite-jumping appliance can stimulate condylar growth and increase sagittal mandibular advancement in growing rats.
5
Mehra, Anhad, Venkatesh Anehosur, and Niranjan Kumar. "Impacted Mandibular Third Molars and Their Influence on Mandibular Angle and Condyle Fractures." Craniomaxillofacial Trauma & Reconstruction 12, no. 4 (December 2019): 291–300. http://dx.doi.org/10.1055/s-0039-1685459.
Full textAbstract:
The aim of this study is to retrospectively analyze the effect unerupted or partially erupted third molars have on the angle and condyle fracture patterns of the mandible. It also focuses on evaluating the type of impaction that causes angle fracture and the level at which the condyle most commonly fractures. The study involves all the patients who had undergone treatment for condylar and angle of the mandible fractures from 2010 to 2017 in our craniofacial center. The case records and orthopantomograms of each patient were taken into consideration and a correlation was established based on gender, age, etiology, presence of third molars, position of third molars, angulation, and root development of third molars. Of the 150 angle fracture patients, 146 had third molars and 4 did not, whereas of the 130 condyle fractures, third molar was present in 54 patients and absent in 76. The prevalence of angle fractures was statistically significant when a third molar was present, whereas the prevalence of condyle fractures was higher when third molar was absent. The results of age, etiology, angulation, position, and root development of third molars were also statistically significant. However, sex of the patient did not influence the fracture pattern. The presence of an impacted third molar or a completely erupted one has a definite influence on the fracture pattern of the mandible. The occurrence of angle and condyle fractures was mostly affected by the continuity of the cortical bone at the angle of the mandible. Hence, prophylactic removal of mandibular third molars does increase the risk of condyle fractures.
6
Singh, Virendra, Pranav Gupta, Shruti Khatana, and Amrish Bhagol. "Superolateral Dislocation of Bilateral Intact Condyles—An Unusual Presentation: Report of a Case and Review of Literature." Craniomaxillofacial Trauma & Reconstruction 6, no. 3 (September 2013): 205–10. http://dx.doi.org/10.1055/s-0033-1343780.
Full textAbstract:
Dislocation of the mandibular condyle is the clinical condition of the condyle head being displaced out of the glenoid fossa but still remaining within the joint capsule. However, the anatomy of the mandibular condyle, glenoid fossa, and zygomatic arch usually prevent the dislocation of intact condyles out of the glenoid fossa whenever the mandible is subjected to high impact. Complete dislocation of the mandibular condyle from the glenoid fossa can be classified into four groups: anterior, posterior, lateral, and superior dislocation. All the groups except anterior dislocation are rare. Superolateral dislocation of the intact mandibular condyle occurs very rarely. We report a case of lateral dislocation of bilateral intact condyles associated with left parasymphysis fracture. The purpose of this report is to review all of the available English literature on this dislocation and discuss the possible causative mechanism and diagnostic features, as well as clinical management.
7
Rahim, Ashfaq ur, Sadiq Ali, Muhammad Nauman, Tannaza Qayyum, Abdullah Khan, Mohammad Abdullah Khan, and Zahid Iqbal. "Comparison of Preauricular Approach Versus Retromandibular Approach in Management of Condylar Fractures." Pakistan Journal of Medical and Health Sciences 15, no. 8 (August 26, 2021): 2137–40. http://dx.doi.org/10.53350/pjmhs211582137.
Full textAbstract:
Objectives: Surgical treatment of patients with multiple mandibular fractures involving condylar segments may be a difficult proposition for a maxillofacial surgeon. These fractures can be double or triple fractures of the lower mandible and can also be associated with other fractures of the face. While many authors have suggested that the conventional approach to reducing and stabilizing a mandibular symphysis / para-symphysis fracture is appropriate before addressing a fractured condyle, there is another school of thought that suggests that the condylar segment should be reduced and repaired first. This article aims to review the results of operations where the reduction and fixation of a fractured condyle is performed prior to other associated mandible fractures, and to explore the effectiveness of various surgical methods including preauricular and retromandibular proposed in this case. Place and Duration: In the Oral and Maxillofacial surgery department of Faryal Dental College, Lahore for two-years duration from Jan 2018 to Jan 2020. Material and methods: The study included 60 surgically treated patients with multiple mandible fractures (double / triple), including the condyle component. For treatment of the fractured condylar segments, the preauricular and retromandibular (anterior parotid-transmasseteric) approach was used. Results: Condyle fracture was the first segment to be managed during sequencing of surgical treatment, regardless of the method used. First, good reduction and stabilization have been achieved with limited complications in treating a condyle fracture. Conclusion: While it is the surgeon's prerogative to sort multiple mandible fractures, addressing the condylar segment first provides the operator with a viable alternative to the conventional technique. Key words: condylar fractures, multiple mandibular fractures, preauricular approach, retromandibular approach
8
Mishra, Madan, and Gaurav Singh. "A Rare Case Report of an Unusual Dislocation of Fractured Mandibular Condyle." Craniomaxillofacial Trauma & Reconstruction 9, no. 2 (June 2016): 166–69. http://dx.doi.org/10.1055/s-0035-1566161.
Full textAbstract:
Several cases have been reported regarding superolateral, posterior, or superior dislocation of mandibular condyle. The anteromedial dislocation of fractured condyle is the most common among all. This article reports an unusual and unique case of dislocated fractured mandibular condyle wherein the fractured left condylar head was dislocated to the left anatomic angle of mandible. We have not found a single such case in the world English literature published till date. The presented case falls in the rarest of the rare category that will add to our previous knowledge about the types and extent of fracture dislocation of mandibular condyle.
9
Kim, Seong Ryoung, Sam Jang, Kang-Min Ahn, and Jee-Ho Lee. "Evaluation of Effective Condyle Positioning Assisted by 3D Surgical Guide in Mandibular Reconstruction Using Osteocutaneous Free Flap." Materials 13, no. 10 (May 19, 2020): 2333. http://dx.doi.org/10.3390/ma13102333.
Full textAbstract:
In the present study, the reproducibility and postoperative stability of a 3D printed surgical guide were evaluated in mandibular reconstruction with an osteocutaneous free flap (OCFF), including a fibular free flap (FFF) and deep circumflex iliac artery free flap (DCIA). Fifteen patients were enrolled, and a 3D surgical guide was fabricated by simulation surgery using preoperative (T0) Computed tomography (CT) images. Mandibular reconstruction was performed with OCFF using the 3D surgical guide. Postoperative CTs were taken immediately, 1 week (T1), and 6 months (T2) after surgery, to evaluate the reproducibility of the 3D surgical guide and condyle stability. Error of the 3D surgical guide ranged from 0.85 to 2.56 mm. There were no differences in reproducibility according to flap type. Condylar error and error at mandible midpoint were significantly different in FFF. However, there was no difference in DCIA error between the condyle and mandible midpoint. Regarding condyle stability 6 months after surgery, condyles moved more than 2 mm (up to 2.85 mm) in FFF, whereas there were no significant movement in DCIA. Careful intraoperative flap fixation and closed postoperative observation should be considered for stable clinical outcome, especially in the case of FFF.
10
Rodrigues, Lucimar, Luciana Corrêa, and João Gualberto de Cerqueira Luz. "Effects of the condylar process fracture on facial symmetry in rats submitted to protein undernutrition." Acta Cirurgica Brasileira 26, no. 2 (April 2011): 88–93. http://dx.doi.org/10.1590/s0102-86502011000200003.
Full textAbstract:
PURPOSE: To investigate the facial symmetry of rats submitted to experimental mandibular condyle fracture and with protein undernutrition (8% of protein) by means of cephalometric measurements. METHODS: Forty-five adult Wistar rats were distributed in three groups: fracture group, submitted to condylar fracture with no changes in diet; undernourished fracture group, submitted to hypoproteic diet and condylar fracture; undernourished group, kept until the end of experiment, without condylar fracture. Displaced fractures of the right condyle were induced under general anesthesia. The specimens were submitted to axial radiographic incidence, and cephalometric mensurations were made using a computer system. The values obtained were subjected to statistical analyses among the groups and between the sides in each group. RESULTS: There was significative decrease of the values of serum proteins and albumin in the undernourished fracture group. There was deviation of the median line of the mandible relative to the median line of the maxilla, significative to undernutrition fracture group, as well as asymmetry of the maxilla and mandible, in special in the final period of experiment. CONCLUSION: The mandibular condyle fracture in rats with proteic undernutrition induced an asymmetry of the mandible, also leading to consequences in the maxilla.
Dissertations / Theses on the topic "Mandibular condyle Mandible"
1
Wey, Mang-chek. "Treatment changes and effects of headgear activator with stepwise vs. maximum mandibular jumping /." View the Table of Contents & Abstract, 2005. http://sunzi.lib.hku.hk/hkuto/record/B31541094.
Full text
2
魏曼潔 and Mang-chek Wey. "Treatment changes and effects of headgear activator with stepwise vs. maximum mandibular jumping." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45012271.
Full text
3
Subramaniam, Pram Kumar. "Condylar changes following vertical subsigmoid osteotomy in different setback magnitude." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206503.
Full textAbstract:
Objectives: This retrospective study aims to compare the effect of different mandibular setback amount by vertical subsigmoid osteotomy (VSSO) on the pattern of condylar remodelling in both metric and morphologic analysis at 1 year post surgery.
Materials and Methods: 200 patients diagnosed of mandibular prognathism and had undergone VSSO with various setback amounts from 2007 until 2012 at the Prince Philip Dental Hospital were included in this study. Presurgical and 1 year post surgical Postero-Anterior Cephalogram, Lateral Cephalograms and Cone Beam Computed Tomography (CBCT) Scans were retrieved. Tracings of plain cephalometric radiographs were performed. CBCT data sets were used to create 3D condyles to measure the linear and condylar axis angle value in multiplanar view. Finally the pre and postsurgical 3D condyle-ramus units were superimposed using stable registration point in the condylar neck and ramal area above the lingual to assess the condylar bone remodelling by topographic and multiplanar slide views.
Result: From the plain radiographic tracings, there were no significant differences in the changes of ramus inclination angle, intergonial width and total ramus angle between postoperative (T2) and preoperative (T1) values across the setback groups. A gradual increase in the postoperative sagittal condylar axis angle is detected with greater setback in the CBCT multiplanar analysis while other linear and angular condylar changes were not significantly different. 3D Topography (T2 -T1) superimposition analysis of the condylar surface showed no significant relation between the remodelling changes and the setback magnitude except at the superior posterior zone. Multiplanar view (T2-T1) superimposition analysis in the coronal and sagittal planes showed no significant relationship between the remodelling changes and the setback magnitude. However there was higher proportion of positive remodelling following higher setback amount at the midanterior and posteromedial zone in the axial plane.
Conclusion: Condyle remodelling is noted to be positive and not detrimental following VSSO. The positive remodelling effect remains stable regardless of the amount of VSSO setback.published_or_final_version
Dental Surgery
Master
Master of Dental Surgery
4
Muhonen, Arja. "Distraction osteogenesis of irradiated rabbit mandible with and without hyperbaric oxygen therapy." Turku : Turun Yliopisto, 2002. http://catalog.hathitrust.org/api/volumes/oclc/50131839.html.
Full text
5
Xiong, Hui, and 熊暉. "Condylar adaptation to active mandibular forward positioning in non-growing rats." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31374220.
Full text
6
Bustamante, Carmen, Vanessa Labrín, Leslie Casas-Apayco, and Hugo Ghersi-Miranda. "Dimension and morphology of the mandibular condyle in Class I patients in cone beam computed tomography." Universidad de Concepcion, 2020. http://hdl.handle.net/10757/652452.
Full textAbstract:
Evaluar la dimensión antero- posterior (A-P)/medio-lateral (M–L), y la morfología del cóndilo mandibular en pacientes de 18 a 65 años con patrón esquelético Clase I en tomografías computarizadas Cone Beam. Material y Métodos: 71 tomografías fueron evaluadas mediante el software RealScan 2.0. La dimensión fue determinada por los puntos A (más anterior en el plano sagital), P (más posterior en el plano sagital), M (más interno en el plano coronal), L (más externo en plano coronal). Se evaluó la morfología del cóndilo en dos planos coronal y sagital, clasificándose en: redonda, aplanada, convexa y mixta. La dimensión del cóndilo fue analizada por estadística descriptiva y la morfología mediante distribución de frecuencias. Para el análisis bivariado, se aplicó la prueba de t de Student. Resultado: Se obtuvieron las medidas del diámetro A-P del cóndilo derecho (CD) (8,72mm ± 1,25mm) y el izquierdo (CI) (8,50mm ± 1,50mm), el diámetro M-L del CD (19,24mm ± 2,03mm) y el CI (18,97mm ± 1,87mm). Hubo diferencias significativas en la dimensión M-L del CI del sexo masculino en comparación al femenino (p=0.002). La morfología más prevalente del CD (35,21) y CI (23,94) en plano coronal fue de tipo redonda. Conclusión: La dimensión A-P del cóndilo derecho e izquierdo es similar en ambos sexos; sin embargo, existen diferencias en la dimensión M-L del cóndilo izquierdo del sexo masculino. La morfología del cóndilo derecho e izquierdo más prevalente fue la redonda en plano sagital a excepción del plano coronal.To evaluate the anterior-posterior (A-P)/medial-lateral (M-L) dimension, and morphology of the mandibular condyle in patients aged 18 to 65 years with Class I skeletal pattern on Cone Beam Computed Tomography scans (CBCTs). Materials and Methods: Seventy one CBCTs were evaluated using RealScan 2.0 software. The dimension was determined by points A (most anterior in the sagittal plane), P (most posterior in the sagittal plane), M (most interior in the coronal plane), L (most exterior in the coronal plane). The morphology of the condyle was evaluated in two coronal and sagittal planes, being classified as: round, flat, convex or mixed. The size of the condyle was analyzed by descriptive statistics and the morphology by frequency distribution. For the bivariate analysis, the Student’s t-test was applied. Results: Measurements were obtained for the A-P diameter of the right condyle (RC) (8.72mm ± 1.25mm) and the left condylar (LC) (8.50mm ± 1.50mm), the M-L diameter of the RC (19.24mm ± 2.03mm) and the LC (18.97mm ± 1.87mm). There were significant differences in the male M-L dimension of the LC compared to the female (p=0.002). The most prevalent morphology of RC (35.21) and IQ (23.94) in the coronal plane was round.. Conclusion: The A-P dimension of the right and left condyle is similar in both genders; however, there are differences in the M-L dimension of the left male condyle. The most prevalent morphology of the right and left condyle was round in the sagittal plane with the exception of the coronal plane.
Revisión por pares
7
Teixeira, Vanessa Castelo Branco. ""Efeitos da fratura de côndilo mandibular no crescimento da maxila e mandíbula: estudo experimental em ratos"." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/23/23143/tde-14122004-111251/.
Full textAbstract:
O presente estudo analisou os efeitos da fratura de côndilo unilateral, no período de crescimento. Para tanto, foram utilizados 50 ratos jovens, linhagem Wistar, com peso até 100g. Sob anestesia geral foi realizada no grupo experimental fratura do processo condilar no lado direito com desvio e no grupo controle-operado, foi feito apenas acesso cirúrgico ao côndilo. O sacrifício dos animais foi feito aos três meses de idade. A mandíbula foi desarticulada sendo obtidas as incidências radiográficas axial do crânio seco e lateral das hemi-mandíbulas. Foram feitas mensurações cefalométricas por meio de um sistema de computador. Foram aplicados os testes estatísticos t de Student entre os grupos e teste t de Student para dados pareados entre os lados, dentro de cada grupo.Houve diferença significante entre os grupos para o lado direito no comprimento das porções anterior (p=0,001) e posterior (0,017) da maxila e altura do ramo mandibular (p=0,001). Houve diferença significante entre os lados para o comprimento da mandíbula (p<0,001) e altura do ramo mandibular (p<0,001), nos grupos experimental e controle-operado. Houve diferença significante para a altura do corpo mandibular (p=0.001) e para o comprimento das porções anterior (p=0,002) e posterior (p=0,001) da maxila apenas no grupo experimental. Os resultados obtidos permitiram concluir que uma fratura de côndilo mandibular experimental durante o período de crescimento em ratos levou a uma assimetria da mandíbula na altura do corpo mandibular, com conseqüências também para a maxila.The present study analyzed the effects of the condyle fracture were analyzed in the growing period in this study. Fifty young Wistar rats weighting 100g were used. Under general anestesia fracture of the condilar process on the right side with deviation was performed in the experimental group, while only the made surgical access was performed in the sham-operated group. The animals were sacrifized with three months of age. The mandible was disarticulated, and radiographic projections axial of dried skull and lateral of the hemimandible were obtained. Cephalometric mensurations through a computer system were made. Statistical tests "t" of Student between the groups and paired test "t" of Student among the sides, inside of each group were applied. There was a significant different among the groups to the right side in the length of the anterior portion (p=0,001) and posterior (0,017) of the maxilla and height of the mandibular ramus (p=0,001). There was significant difference among the sides for the length of the mandible (p <0,001) and height of the mandibular ramus (p<0,001), in the height of the body mandibular (p=0.001) and for the length of the anterior portions (p=0,002) and posterior (p=0,001) of the maxilla just in the experimental group. The obtained results allowed to conclude that a experimental fracture of mandibular condyle during the growing period in rats induced an asymmetry of the mandible in the height of the mandibular body, with also consequences to the maxilla.
8
MOURALI, MOHAMED. "Traitement chirurgical des fractures du condyle mandibulaire." Aix-Marseille 2, 1993. http://www.theses.fr/1993AIX20072.
Full text
9
Bettega, Georges. "La chirurgie orthognathique assistée par ordinateur : de la planification à la réalisation." Université Joseph Fourier (Grenoble), 1997. http://www.theses.fr/1997GRE19012.
Full text
10
Artuzi, Felipe Ernesto. "Influência da condilotomia sobre a articulação temporomandibular de coelhos com osteoartrite quimicamente induzida." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2012. http://hdl.handle.net/10183/56460.
Full textAbstract:
Introdução: A osteoartrite (OA) é caracterizada como sendo uma doença degenerativa das articulações, apresentando uma reação inflamatória de baixo grau. Dependendo da severidade da osteoartrite, os tratamentos podem ser cirúrgicos ou não cirúrgicos. A condilotomia é uma opção de técnica cirúrgica sem interposição articular, em que se realiza uma fratura guiada, a partir de uma osteotomia oblíqua no processo condilar da mandíbula. Após a cirurgia, o côndilo assume uma posição mais anterior e inferior, com recaptura do disco, possibilitando funcionalidade articular e processo de reparo. Proposição: O objetivo do presente trabalho foi avaliar os efeitos da condilotomia nas estruturas teciduais do côndilo da articulação temporomandibular de coelhos portadores de osteoartrite quimicamente induzida. Materiais e métodos: Foram utilizados dois grupos de animais com degeneração de articulação temporomandibular (ATM) quimicamente induzida. O grupo controle (n=15) acompanhou o grupo teste conforme os tempos de morte dos animais. O grupo teste (n=15) foi submetido à fratura cirúrgica guiada do côndilo mandibular, após 40 dias a partir da indução da doença. A análise histológica da superfície do côndilo mandibular foi realizada considerando-se a severidade da osteoartrite, por meio do escore proposto por Pritzker et al. (2006). Realizou-se a quantificação de colágeno tipo I na camada da cartilagem articular por meio da coloração de Picrossírius, sob efeito de luz polarizada. Os animais foram mortos nos tempos de 20, 40 e 60 dias após a cirurgia. Resultados: A severidade da osteoartrite observada na articulação temporomandibular dos animais do grupo teste no tempo de 60 dias foi comparativamente menor em relação ao grupo teste no tempo de 20 dias e ao grupo controle no tempo de 60 dias. Observou-se um grau maior na severidade da OA no grupo teste de 20 dias em comparação ao grupo controle no mesmo tempo avaliado. A quantidade de colágeno tipo I na camada de cartilagem do grupo controle foi menor em relação ao grupo teste, principalmente na região anterior do côndilo mandibular no grupo controle de 60 dias. Conclusão: A condilotomia é uma técnica cirúrgica eficaz na redução da severidade da osteoartrite quimicamente provocada na superfície condilar da ATM de coelhos. O colágeno tipo III, predominante na camada de cartilagem das articulações com osteoartrite, foi substituído por colágeno tipo I, após a realização da condilotomia.Background: Osteoarthritis (OA) is a degenerative joint disease, associated with low-grade inflammation. Treatment involves non-surgical and surgical options, depending on the severity of OA. Condylotomy is an alternative procedure that does not require articular interposition, in which an oblique osteotomy of the mandibular condyle is performed to guide the fracture. After surgery, the condyle shifts to an anterior-inferior position, with disk recapture, allowing joint functionality and repair process. Purpose: This study aimed to evaluate the effects of condylotomy on tissue structures of the temporomandibular joint (TMJ) condyle in rabbits with chemically induced OA. Materials and methods: Animals with chemically induced temporomandibular joint (TMJ) degeneration were divided into two groups: control group (n=15), which followed the experimental group as for the time points when deaths occurred; and experimental group (n=15), which underwent surgical fracture guided by osteotomy of the mandibular condyle 40 days after disease induction. Histological analysis of the articular surface of the mandibular condyle was performed considering the severity of OA, using the grading system proposed by Pritzker et al. (2006). The Picrosirius-polarization method was used to quantify type I collagen in the articular cartilage. The animals were killed 20, 40 and 60 days after surgery. Results: The severity of OA in the TMJ of experimental animals at day 60 was comparatively lower than that of experimental animals at day 20 and controls at day 60. Experimental animals showed a higher OA severity grade than controls at day 20. The amount of type I collagen in the articular cartilage of control animals was lower than that of experimental animals, especially in the anterior region of the mandibular condyle of controls at day 60. Conclusion: Condylotomy is an effective surgical technique for reducing the severity of chemically induced OA in the condylar surface of the rabbit TMJ. Type III collagen, which predominates in osteoarthritic articular cartilage, was replaced by type I collagen after condylotomy was performed.
Books on the topic "Mandibular condyle Mandible"
1
Biomechanics and osteosynthesis of condylar neck fractures of the mandible. Chicago: Quintessence Pub. Co., 1994.
Find full text
2
Agarwal, Anil, Neil Borley, and Greg McLatchie. Oral and maxillofacial surgery. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780199608911.003.0015.
Full textAbstract:
This chapter on oral and maxillofacial surgery describes intra-oral and face nerve blocks. Operations include biopsies and excision of small lesions, simple and surgical tooth extraction, apicectomy, odontogenic cyst enucleation and marsupilialization, intra-oral implant insertion, maxillary sinus floor elevation, submandibular duct stone removal, sublingual gland excision, repair of facial laceration including parotid duct repair and facial nerve repair, lateral canthotomy and cantholysis, intermaxillary fixation, open reduction internal fixation (ORIF) of mandible, mandibular condyle, zygomatic complex, repair of orbital floor and wall, access for bicoronal flap, bilateral sagittal split osteotomy, maxillary osteotomy, temporal mandibular joint (TMJ) arthrocentesis, eminoplasty and condyloplasty and disc procedures, pectoralis major myocutaneous flap, radial forearm free flap harvest, osteocutaneous iliac crest flap harvest and, fibula free flap harvest.
Book chapters on the topic "Mandibular condyle Mandible"
1
Dhupar, Vikas. "Fracture of the Mandibular Condyle." In Oral and Maxillofacial Surgery for the Clinician, 1085–114. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-1346-6_53.
Full textAbstract:
AbstractCondylar fractures of the mandible have intrigued surgeons for decades. This is because of many reasons which have ranged from difficulty in evaluating to managing condylar fractures which have always courted controversies. There has been an attempt to classify condylar fractures from the mid nineteenth century. During early times most of the classifications were focused on purpose of locating the fracture rather than on treatment. As radiological imagery evolved condylar fractures are better understood and have resulted in a different approach to their management. This resulted in a change of classification systems which are focused on management. At the same time a better understanding of the various approaches to the condylar region along with the improvement of armamentarium has resulted in the shift of management of condylar fractures which at one time was closed to open reduction and fixation. In this chapter the focus is on various classifications systems, evaluation of the patient, management and outcome with various modalities of treatment.
2
Obwegeser, Hugo L. "Clinical Experience Regarding the Influence of the Condyle on the Growth of the Mandible." In Mandibular Growth Anomalies, 49–135. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/978-3-662-04534-3_11.
Full text
3
Mani, Varghese. "Orthognathic Surgery for Mandible." In Oral and Maxillofacial Surgery for the Clinician, 1477–512. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-1346-6_68.
Full textAbstract:
AbstractMandible, a horseshoe shaped bone of the facial skeleton, is one of the sturdy bones in humans. Prominent chin is a unique feature of anatomically modern man in comparison with his anthropological ancestors. The simian shelf has reduced to two genial tubercles to which two muscles are attached. The neck of the condyle has narrowed and acts as a buffer to budge by fracture if there is a severe force on the prominent chin. These evolutionary changes facilitated increased space for the tongue as men started articulation. It articulates with the temporal bone by two inter-dependent Temporo-mandibular joints. Mandible is important in both function and aesthetics.Mandible can be cut into multiple pieces and re-arranged and fixed to achieve aesthetic and functional changes. Facial bones have a tremendous capacity to regenerate and heal provided proper blood supply is ensured to the cut segments. Ostoetomies of the mandible can be done on ramus, body, chin, dento-alveolar region, inferior border, etc. Most of these procedures are done intraorally. Technological advancements have aided orthognathic surgery at large. This chapter envisages to elaborate different techniques of osteotomy of mandible.
4
Saridin, C. P., A. G. Becking, and P. G. H. M. Raijmakers. "Unilaterale condylaire hyperactiviteit (UCH): een zeldzame, maar goed te herkennen groeistoornis van de condylus mandibulae." In Het tandheelkundig jaar 2009, 131–40. Houten: Bohn Stafleu van Loghum, 2009. http://dx.doi.org/10.1007/978-90-313-6612-5_11.
Full text
5
Atkinson, Martin E. "The temporomandibular joints, muscles of mastication, and the infratemporal and pterygopalatine fossae." In Anatomy for Dental Students. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199234462.003.0033.
Full textAbstract:
It is essential that dental students and practitioners understand the structure and function of the temporomandibular joints and the muscles of mastication and other muscle groups that move them. The infratemporal fossa and pterygopalatine fossa are deep to the mandible and its related muscles; many of the nerves and blood vessels supplying the structures of the mouth run through or close to these areas, therefore, knowledge of the anatomy of these regions and their contents is essential for understanding the dental region. The temporomandibular joints (TMJ) are the only freely movable articulations in the skull together with the joints between the ossicles of the middle ear; they are all synovial joints. The muscles of mastication move the TMJ and the suprahyoid and infrahyoid muscles also play a significant role in jaw movements. The articular surfaces of the squamous temporal bone and of the condylar head (condyle) of the mandible form each temporomandibular joint. These surfaces have been briefly described in Chapter 22 on the skull and Figure 24.1A indicates their shape. The concave mandibular fossa is the posterior articulating surface of each squamous temporal bone and houses the mandibular condyle at rest. The condyle is translated forwards on to the convex articular eminence anterior to the mandibular fossa during jaw movements. The articular surfaces of temporomandibular joints are atypical; they covered by fibrocartilage (mostly collagen with some chondrocytes) instead of hyaline cartilage found in most other synovial joints. Figures 24.1B and 24.1C show the capsule and ligaments associated with the TMJ. The tough, fibrous capsule is attached above to the anterior lip of the squamotympanic fissure and to the squamous bone around the margin of the upper articular surface and below to the neck of the mandible a short distance below the limit of the lower articular surface. The capsule is slack between the articular disc and the squamous bone, but much tighter between the disc and the neck of the mandible. Part of the lateral pterygoid muscle is inserted into the anterior surface of the capsule. As in other synovial joints, the non-load-bearing internal surfaces of the joint are covered with synovial membrane.
6
"Condylus mandibulae." In Funktionsdiagnostik und Therapieprinzipien, edited by Axel Bumann and Ulrich Lotzmann. Stuttgart: Georg Thieme Verlag, 2000. http://dx.doi.org/10.1055/b-0034-54301.
Full textConference papers on the topic "Mandibular condyle Mandible"
1
Hagandora, Catherine K., and Alejandro J. Almarza. "A Comparison of the Mechanical Properties of the Goat Temporomandibular Joint Disc to the Mandibular Condylar Cartilage in Unconfined Compression." In ASME 2011 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2011. http://dx.doi.org/10.1115/sbc2011-53173.
Full textAbstract:
The temporomandibular joint (TMJ) is a synovial, bilateral joint formed by the articulation of the condyle of the mandible and the articular eminence and glenoid fossa of the temporal bone. The articulating tissues of the joint include the TMJ disc and the mandibular condylar cartilage (MCC). It is estimated that 10 million Americans are affected by TMJ disorders (TMDs), a term encompassing a variety of conditions which result in positional or structural abnormalities in the joint. [1] Characterization of the properties of the articulating tissues of the joint is a necessary prequel to understanding the process of pathogenesis as well as tissue engineering suitable constructs for replacement of damaged joint fibrocartilage. Furthermore, the current literature lacks a one-to-one comparison of the regional compressive behavior of the goat MCC to the TMJ disc.
2
Landric, C. "Fracture de l’angle mandibulaire déplacé chez l’enfant : ou réduire ? Quand retirer le matériel ?" In 66ème Congrès de la SFCO. Les Ulis, France: EDP Sciences, 2020. http://dx.doi.org/10.1051/sfco/20206603007.
Full textAbstract:
Chez l’enfant, les fractures alvéolo-dentaire sont plus fréquentes que les fractures basales car l’os est plus élastique que chez l’adulte. Cependant la présence de germes fragilise la mandibule (Cole 2009). Concernant les fractures squelettiques maxillo-faciales, 55% concernent les condyles mais seulement 8% concernent l’angle. La prise en charge entre l’adulte et l’enfant diffère du fait du risque d’accident d’évolution des germes et des troubles de croissance secondaires. Le cas présenté à été pris en charge au Centre Hospitalier de Pau. Il concerne un enfant de 8 ans ayant présenté une fracture comminutive de l’angle mandibulaire gauche avec plaie submandibulaire et sublinguale suite à un accident domestique. L’examen clinique dans ce contexte fut difficile. L’examen tomodensitométrique avait mis en évidence une fracture déplacée de l’angle mandibulaire gauche passant par le germe de 37. Il a bénéficié d’une exploration cervicale ( vasculaire, nerveuse et glandulaire) et d’une ostéosynthèse basilaire et sur la ligne oblique externe par voie d’abord mixte selon les plaies. Une plaque de 1,5mm sur la ligne oblique et sur le rebord basilaire ont été posées avec des vis mono corticale de 5 mm. Un contrôle clinique et radiologique a été réalisé a 15 jours et 2 mois sans complications post opératoire. L’ablation du matériel à été réalisé à 3 mois en reprenant les mêmes voie d’abord. Le contrôle a 1 mois et 6 mois après dépose du matériel n’a pas mis en évidence d’accident dévolution sur le germe de 37. La réduction de la fracture de l’angle déplacé chez l’adulte se fait par une plaque rigide sur la ligne oblique externe associée ou non à une ostéosynthèse basilaire. Chez l’enfant les auteurs recommandent une réduction basilaire pour ne pas atteindre les germes des dents définitives avec abord cervical, endobuccal ou mixte (Zimmermann 2006). Consolidation osseuse chez l’adulte 6 semaines, 3 semaines chez l’enfant car le potentiel ostéogénique est supérieur à celui de l’adulte. Si le condyle est reconnu comme centre du potentiel de croissance, la mandibule répond à une croissance adaptative et maintenir une ostéosynthèse rigide après le délai de consolidation pourrait entraîner des troubles de la croissance (Wheeler 2011). Chez l’adulte l’ablation du matériel d’ostéosynthèse n’est pas systématique, et est réalisé en moyenne à 6 mois a 1 an post opératoire. Chez l’enfant la moyenne est a 3 mois post opératoire (Bakathir 200). Pour l’instant les plaques résorbables ne montrent pas entière satisfaction, du fait de la réaction inflammatoire importante qu’elles induisent.