Journal articles: 'Atrophic maxilla'

1

Hazrati, Ezatollah. "ATROPHIC MAXILLA." Plastic and Reconstructive Surgery 110, no. 1 (July 2002): 377–78. http://dx.doi.org/10.1097/00006534-200207000-00109.

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Wang, Xuan, Tianqi Zhang, Enli Yang, Zhiyuan Gong, Hongzhou Shen, Haiwei Wu, and Dongsheng Zhang. "Biomechanical Analysis of Grafted and Nongrafted Maxillary Sinus Augmentation in the Atrophic Posterior Maxilla with Three-Dimensional Finite Element Method." Scanning 2020 (October 2, 2020): 1–8. http://dx.doi.org/10.1155/2020/8419319.

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This study is aimed at determining the optimal sinus augmentation approach considering the poor bone condition in the zone of atrophic posterior maxilla. A series of simplified maxillary segment models varying in residual bone height (RBH) and bone quality were established. A 10 mm standard implant combined with two types of maxillary sinus augmentation methods was applied with the RBH, which was less than 10 mm in the maxilla. The maximal equivalent von Mises (EQV) stress in residual bone was evaluated. Bone quality had an enormous impact on the stress magnitude of supporting bone. Applying sinus augmentation combined with grafts was suitable for stress distribution, and high-stiffness graft performed better than low-stiffness one. For 7 mm and 5 mm atrophic maxilla, nongrafted maxillary sinus augmentation was feasible in D3 bone. Poor bone quality was a negative factor for the implant in the region of atrophic posterior maxilla, which could be improved by grafts. Meanwhile, the choice of maxillary sinus augmentation approaches should be determined by the RBH and quality.

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3

Higuchi, Kenji W., and Stefan Lundgren. "Treatment of the atrophic maxilla." Journal of Oral and Maxillofacial Surgery 62 (August 2004): 3. http://dx.doi.org/10.1016/j.joms.2004.05.009.

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Acocella, Alessandro, Roberto Sacco, Paolo Nardi, and Tommaso Agostini. "Early Implant Placement in Bilateral Sinus Floor Augmentation Using Iliac Bone Block Grafts in Severe Maxillary Atrophy: A Clinical, Histological, and Radiographic Case Report." Journal of Oral Implantology 35, no. 1 (January 1, 2009): 37–44. http://dx.doi.org/10.1563/1548-1336-35.1.37.

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Abstract Effectively restoring a grossly atrophic maxilla can be difficult for the implant surgeon. The placement of dental implants in patients who are edentulous in the posterior maxilla can present difficulties because of deficient posterior alveolar ridge and increased pneumatization of the maxillary sinus, resulting in a minimal hard tissue bed. Implant placement requires adequate quality and quantity of bone, especially in the posterior maxilla. Insufficient bone height and width in this area of the maxilla, because of expansion of the maxillary sinus and atrophic reduction of the alveolar ridge, represents a contraindication for conventional insertion of dental implants. The reconstruction of edentulous patients with adequate bone volume and density by the use of bone graft and, subsequently, the placement of dental implants has become a viable treatment option with high predictability. It is commonly shared that autologous bone graft is the gold standard grafting method in the augmentation of Higmoro antrum and in any kinds of guided bone regeneration. In this article, the authors report a case of severe maxillary atrophy that is augmented by block bone graft harvested from iliac crest. An early placement of implants is possible due to the quick healing of the site, as proven by histologic examinations.

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Prados-Privado, María, Henri Diederich, and Juan Prados-Frutos. "Implant Treatment in Atrophic Maxilla by Titanium Hybrid-Plates: A Finite Element Study to Evaluate the Biomechanical Behavior of Plates." Metals 8, no. 8 (July 25, 2018): 573. http://dx.doi.org/10.3390/met8080573.

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A severely atrophied maxilla presents serious limitations for rehabilitation with osseointegrated implants. This study evaluated the biomechanical and long-term behavior of titanium hybrid-plates in atrophic maxilla rehabilitation with finite elements and probabilistic methodology. A three-dimensional finite element model based on a real clinical case was built to simulate an entirely edentulous maxilla with four plates. Each plate was deformed to become accustomed to the maxilla’s curvature. An axial force of 100 N was applied in the area where the prosthesis was adjusted in each plate. The von Mises stresses were obtained on the plates and principal stresses on maxilla. The difference in stress between the right and left HENGG-1 plates was 3%, while between the two HENGG-2 plates it was 2%, where HENGG means Highly Efficient No Graft Gear. A mean maximum value of 80 MPa in the plates’ region was obtained, which is a lower value than bone resorption stress. A probability cumulative function was computed. Mean fatigue life was 1,819,235 cycles. According to the results of this study, it was possible to conclude that this technique based on titanium hybrid-plates can be considered a viable alternative for atrophic maxilla rehabilitation, although more studies are necessary to corroborate the clinical results.

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Muthumani, T., and Buggaveeti Pradeep Kumar. "Management of Atrophic Maxilla-A Review." Indian Journal of Public Health Research & Development 10, no. 8 (2019): 1714. http://dx.doi.org/10.5958/0976-5506.2019.02357.x.

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Balaji, VR, R. Lambodharan, D. Manikandan, and S. Deenadayalan. "Pterygoid implant for atrophic posterior maxilla." Journal of Pharmacy And Bioallied Sciences 9, no. 5 (2017): 261. http://dx.doi.org/10.4103/jpbs.jpbs_103_17.

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de Carvalho, Liliane Pacheco, Alexandre Marcelo de Carvalho, Carlos Eduardo Francischone, Flavia Lucisano Botelho do Amaral, and Bruno Salles Sotto-Maior. "Biomechanical behavior of atrophic maxillary restorations using the all-on-four concept and long trans-sinus implants: A finite element analysis." Journal of Dental Research, Dental Clinics, Dental Prospects 15, no. 2 (May 5, 2021): 106–10. http://dx.doi.org/10.34172/joddd.2021.018.

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Background. Maxillary bone atrophy with a considerable amount of pneumatization and anterior expansion of the maxillary sinus might be a situation limiting oral rehabilitation with osseointegrated implants. Therefore, the present study aimed to biomechanically evaluate two rehabilitation techniques for maxillary bone atrophy: all-on-four and long trans-sinus implants. Methods. Two three-dimensional models consisting of atrophic maxilla with four implants were simulated. In the M1 model, two axially inserted anterior implants and two tilted implants, 15 mm in length, placed tangential to the maxillary sinus’s anterior wall were used. In the M2 model, two axially inserted anterior implants and two trans-sinus tilted implants, 24 mm in length, were used. For the finite element analysis (FEA), an axial load of 100 N was applied on the entire extension of the prosthesis, simulating a rehabilitation with immediate loading. The peri-implant bone and the infrastructure were analyzed according to the Mohr-Coulomb and Rankine criteria, respectively. Results. The results were similar when the stresses on peri-implant bone were compared: 0.139 and 0.149 for models 1 and 2, respectively. The tension values were lower in the model with trans-sinus implants (27.99 MPa). Conclusion. It was concluded that the two techniques exhibited similar biomechanical behavior, suggesting that the use of long trans-sinus implants could be a new option for atrophic maxilla rehabilitation.

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Lundgren, Stefan, Elisabeth Nyström, Hans Nilson, Johan Gunne, and Ove Lindhagen. "Bone grafting to the maxillary sinuses, nasal floor and anterior maxilla in the atrophic edentulous maxilla." International Journal of Oral and Maxillofacial Surgery 26, no. 6 (December 1997): 428–34. http://dx.doi.org/10.1016/s0901-5027(97)80007-0.

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Khouly, Ismael, Diego Gallego-Rivero, Alejandro Pérez, Said Khouly, Cho Sang-Choon, and Stuart J. Froum. "Treatment Options for the Atrophic Posterior Maxilla." ACTUALIDAD MEDICA 99, no. 793 (December 31, 2014): 152–56. http://dx.doi.org/10.15568/am.2014.793.re01.

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11

Ali, Seyed Asharaf, Suma Karthigeyan, Mangala Deivanai, and Arun Kumar. "Implant Rehabilitation For Atrophic Maxilla: A Review." Journal of Indian Prosthodontic Society 14, no. 3 (April 22, 2014): 196–207. http://dx.doi.org/10.1007/s13191-014-0360-4.

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12

Zafiropoulos, Gregor-Georg, Tae Ho Yoon, and Moosa Abuzayda. "Rehabilitation of an Extremely Edentulous Atrophic Maxilla with a Pseudoskeletal Class III Relationship." Case Reports in Dentistry 2019 (April 21, 2019): 1–10. http://dx.doi.org/10.1155/2019/5696837.

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The skeletal class III relationship presents complex dentoalveolar problems, requiring multidisciplinary treatment. In edentulous people, severe atrophy of the jawbone simulates the clinical appearance of a skeletal class III relationship (pseudoskeletal class III), which presents major problems for rehabilitation. This article describes the rehabilitation of a 67-year-old patient with a pseudoskeletal class III relationship. The mandible was restored with two implant-supported bar-retained overdentures using clips for retention. The extremely atrophic maxilla was restored with a combination of sinus augmentation, implant placement, and classic prosthodontic treatment using an electroformed mesostructured overdenture with swivel lock attachments on an implant-supported bar. By performing minimal augmentative and implant surgeries and using the possibilities and advantages of classic prosthetic dentistry, the clinical situation described here could be managed and the atrophic maxilla could be rehabilitated.

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Candel-Martí, Eugenia, Celia Carrillo-García, David Peñarrocha-Oltra, and Maria Peñarrocha-Diago. "Rehabilitation of Atrophic Posterior Maxilla With Zygomatic Implants: Review." Journal of Oral Implantology 38, no. 5 (October 20, 2012): 653–57. http://dx.doi.org/10.1563/aaid-joi-d-10-00126.

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The objective of this study was to review the published literature to evaluate treatment success with zygomatic implants in patients with atrophic posterior maxilla. Studies from 1987 to 2010 were reviewed. In each study, the following were assessed: indications for treatment, number of patients, number of implants, length and diameter of the implants, surgical technique, prosthetic rehabilitation, success rate, complications, and patient satisfaction. Sixteen studies were included, with a total of 941 zygomatic implants placed in 486 patients. The follow-up periods ranged from 12 to 120 months. Three different surgical techniques were used to place zygomatic implants: intrasinus implants with the classic sinus window technique, the sinus slot technique, and extrasinus zygomatic implants. The most common restoration used was fixed prosthesis, with either delayed loading after 3–6 months (89%–100% success) or immediate loading (96.37%–100% success). The weighted average success rate was 97.05%, and the most frequent complication was maxillary sinusitis. The general level of patient satisfaction was high. Zygomatic implants have a high success rate and constitute a suitable alternative to treat severe posterior maxillary atrophy.

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14

Chaichanasiri, Ekachai, and Samroeng Inglam. "The Combination Effects of Age-Related Bone Mechanical Property, Cortical Bone Thickness and Incisal Relationship on Biomechanical Performance of Narrow Diameter Implant Placed in Atrophic Anterior Maxilla: Finite Element Analysis." Engineering Journal 24, no. 6 (November 30, 2020): 117–25. http://dx.doi.org/10.4186/ej.2020.24.6.117.

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Atrophic anterior maxilla edentulous space could pose a significant challenge to successful osseointegrated implant due to inadequate labio-palatal dimensions. The load transferring to surrounding bone is a key factor for the long-term success of implant treatment. Thus, the aim of this study was to evaluate the influence of bone quality change in age-related bone mechanical property (AMP), cortical bone thickness (CBT) and incisal relationship (ICR) on the biomechanical performance of narrow diameter implant placed in atrophic anterior maxilla via finite element method. Three-dimensional models of a narrow diameter implant and an anterior maxillary bone were constructed. Eighteen different clinical situations including two CBTs [thin (0.5 mm) and thick (1.0 mm)], three AMPs [young, middle and old ages] under three ICRs [a low overbite (LO), a mean overbite (MO), a high overbite (HO)] were studied under the loading of 50.1 N. From the results, it is crucial to consider the critical situations of narrow diameter implant placed in atrophic anterior maxilla where the combination of the thin CBT, old age-AMP and HO-ICR clinical situation which induce surrounding bone resorption and implant damage.

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Aoki, Naofumi, Takeo Kanayama, Michinori Maeda, Koichiro Horii, Hironori Miyamoto, Keinoshin Wada, Yasutaka Ojima, Tsukasa Tsuchimochi, and Yasuyuki Shibuya. "Sinus Augmentation by Platelet-Rich Fibrin Alone: A Report of Two Cases with Histological Examinations." Case Reports in Dentistry 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/2654645.

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In sinus floor augmentation of an atrophic posterior maxilla, platelet-rich fibrin (PRF) has been used as a graft material. We herein report two cases with histological evaluations of PRF after the surgery. The first case was a 28-year-old female with an atrophic right posterior maxilla who was treated with sinus floor augmentation and simultaneous implant placement using PRF as the sole graft material in our hospital. Twenty-four months after surgery, the implant was unfortunately removed because of occlusal overloading by parafunctional habits. During implant replacement, a tissue sample was obtained from the site of augmentation with PRF and was evaluated histologically. The second case was a 58-year-old man with severe alveolar atrophy of the right maxilla who underwent lateral sinus augmentation using only PRF in a two-stage procedure in our hospital. Samples were obtained at the second-stage surgery and histological examinations were performed. As a result, new bone formation was confirmed histologically in both cases. Our findings show that the use of PRF as a graft material during sinus floor augmentation induces natural bone regeneration.

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Mavinkurve, Tejal, and Prasad Bhange. "Sinus augmentation in atrophic maxilla: Lateral window approach." Journal of Dental Implants 10, no. 2 (2020): 103. http://dx.doi.org/10.4103/jdi.jdi_19_20.

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17

Ewers, R., F. Watzinger, and B. Schumann. "Different augmentation techniques for the severely atrophic maxilla." International Journal of Oral and Maxillofacial Surgery 26 (January 1997): 199. http://dx.doi.org/10.1016/s0901-5027(97)81434-8.

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18

Maloney, Philip L., Timothy B. Welch, and H. Chris Doku. "Augmentation of the atrophic edentulous maxilla with hydroxylapatite." Oral Surgery, Oral Medicine, Oral Pathology 69, no. 5 (May 1990): 533–38. http://dx.doi.org/10.1016/0030-4220(90)90229-l.

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19

Hurst, Peter S. "Prosthetic considerations in the implant restored atrophic maxilla." Journal of Oral and Maxillofacial Surgery 49, no. 8 (August 1991): 3. http://dx.doi.org/10.1016/0278-2391(91)90456-v.

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20

de Amorim Rocha, Layla Louise, Matheus Francisco Barros Rodrigues, Rodrigo da Franca Acioly, Daniel do Carmo Carvalho, and Cristofe Coelho Lopes da Rocha. "Augmentation of the Atrophic Mandible with a Block Corticomedullary Graft." Case Reports in Dentistry 2020 (June 29, 2020): 1–5. http://dx.doi.org/10.1155/2020/6837519.

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The gradual loss of the dental alveolus leads to bone resorption, which may cause atrophy of the maxilla and mandible. One of the most complex procedures in reconstructive surgery is the rehabilitation of patients with atrophic mandibles. Herein, we present a clinical case study of atrophic mandible augmentation with grafts obtained from the iliac crest. The use of reconstruction plates may represent a feasible mechanism for treatment as well as fracture prevention. Mandible augmentation performed by grafting the donor site of the iliac crest showed satisfactory results and resolution of the aesthetic and functional impairments.

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Tavares, Catarina, and Cidália Pires. "Rehabilitation of atrophic maxilla with tilted implants - Case report." Journal of Surgery Peridontology and Implant Research 1, no. 1 (January 1, 2019): 12–17. http://dx.doi.org/10.35252/jspir.2019.1.001.1.02.

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Abstract Purpose: An 81-year-old male patient, without systemic disorders, came to the appointment referring lack of masticatory function. It was planned a rehabilitation with six implants in upper atrophic maxilla (Implant Direct – Swish Plus), including immediate placing of 4 implants and 2 posterior tilted implants due to the severe pneumatization of maxillary sinus and bone ridge resorption. The prosthetic phase was initiated 4 months after implants surgery. Case report: The placement of tilted implants with the objective of the necessity of bone grafts and increase bone support has been reported by several authors as a viable rehabilitation. And since it is a minimally invasive surgery, it has good acceptance by the patient. The placement of tilted implants is a viable surgical alternative in anatomic regions such as: the anterior or posterior wall of the maxillary sinus, the palatal curvature or the pterygoid process. This treatment option, allied to the use of longer implants, allows an improved primary stability favoring immediate loading. Also, allows the adequate distribution of the implants, resulting in a more uniform distribution of forces and avoids the necessity of cantilever. Some authors have been questioning the biomechanical qualities of this surgical option; however, there are no statistical differences when compared with implants conventionally placed. Conclusions: Tilted implants allow an implant-supported rehabilitation of atrophic maxilla without bone grafts, which decreases the waiting period, the patient’s morbidity and the costs of the treatment.

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Candel, Eugenia, David Peñarrocha, and Maria Peñarrocha. "Rehabilitation of the Atrophic Posterior Maxilla With Pterygoid Implants: A Review." Journal of Oral Implantology 38, S1 (October 1, 2012): 461–66. http://dx.doi.org/10.1563/aaid-joi-d-10-00200.

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The purpose of this article is to review the literature published and to assess the success of treatment of patients with atrophic posterior maxilla with pterygoid implants. Studies from 1992 to 2009 on patients with atrophic posterior maxilla rehabilitated with pterygoid implants were reviewed. Those reporting clinical series of at least 5 patients with atrophic posterior maxilla (Class IV and V of Cawood and Howell), rehabilitated with pterygoid implants and fixed prosthesis, and with 12 months minimum follow-up were included. In each study the following were assessed: number of patients, number of implants, surgical technique, prosthetic rehabilitation, success rate, bone loss, complications and patient satisfaction. Thirteen articles were included, reporting a total of 1053 pterygoid implants in 676 patients. The weighted average success of pterygoid implants was 90.7%; bone loss evaluated radiographically ranged between 0 and 4.5 mm. No additional complications compared with conventional implants were found, and patient satisfaction level with the prosthesis was high. Pterygoid implants have high success rates, similar bone loss levels to those of conventional implants, minimal complications and good acceptance by patients, being therefore an alternative to treat patients with atrophic posterior maxilla. Two anatomical locations in which implants are placed in the retromolar area can be distinguished: the pterygoid process and the pterygomaxillary region. Implant lengths and angulations vary between these two techniques.

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Güngör, Hamiyet, Süleyman Kaman, Ozkan Ozgul, M. Ercüment Önder, Fethi Atil, Umut Tekin, and Ismail Doruk Kocyigit. "Stress Analysis of Prostheses Retained with Zygomatic Implants on Augmented and Non-Augmented Maxillary Sinus." Journal of Biomaterials and Tissue Engineering 10, no. 3 (March 1, 2020): 336–40. http://dx.doi.org/10.1166/jbt.2020.2269.

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Zygomatic implants for toothless, atrophic posterior maxilla are effective treatment options and it is known that graft use has a positive effect on the zygomatic implant stability with this treatment option. The aim of this study was to evaluate the stress values and their distribution at zygomatic implant-supported prosthetic infrastructure in augmented and non-augmented models. In this study, the three-dimensional finite element method was used and 2 zygomatic implants (47.5 × 4.0 mm), 2 conventional implants (13 × 3.75 mm) and atrophic maxilla with augmented and non-augmented maxillary sinus with prosthetic infrastructure, were modelled. A vertical load of 150 N was applied onto the maxillary model at 4 different regions (#9, #12, #14 and #15). The von Mises stress, which is produced as a result of loading of zygomatic implants and prosthetic infrastructure has been evaluated in augmented and non-augmented models. The highest von Mises stress value for the prosthetic infrastructure was determined in the non-augmented model as a result of the loading to region #9 (MPa 222,886). Consequently, grafting procedures will increase bone support and reduce stresses in the prosthetic substructure, especially in posterior loads in the maxilla with low bone density.

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Ghatak, Debiprasad, Krishan Kumar Tyagi, and Eshna Tiwari. "Implant placement in posterior atrophic maxilla using direct and indirect sinus augmentation- a comparative study." Asian Pacific Journal of Health Sciences 4, no. 1 (March 30, 2017): 201–16. http://dx.doi.org/10.21276/apjhs.2017.4.1.32.

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Flanagan, Dennis. "Screwless Fixed Detachable Partial Overdenture Treatment for Atrophic Partial Edentulism of the Anterior Maxilla." Journal of Oral Implantology 34, no. 4 (August 1, 2008): 230–35. http://dx.doi.org/10.1563/0.913.1.

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Abstract This is a case report of the restoration of a partially edentulous atrophic anterior maxilla and atrophic mandibular posterior ridges. This case report demonstrates one method for successful treatment of partial edentulism at No. 7 to 10, where interlock attachments on natural cuspids and mini dental implants support an acrylic-based screwless fixed detachable partial denture to provide lip support and masticatory function in the anterior maxilla. The presenting qualities of this case were similar to combination syndrome.

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26

Van den Borre, Casper, Marco Rinaldi, Björn De Neef, Natalie A. J. Loomans, Erik Nout, Luc Van Doorne, Ignace Naert, et al. "Radiographic Evaluation of Bone Remodeling after Additively Manufactured Subperiosteal Jaw Implantation (AMSJI) in the Maxilla: A One-Year Follow-Up Study." Journal of Clinical Medicine 10, no. 16 (August 12, 2021): 3542. http://dx.doi.org/10.3390/jcm10163542.

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Additively manufactured subperiosteal jaw implants (AMSJI) are patient-specific, 3D-printed, titanium implants that provide an alternative solution for patients with severe maxillary bone atrophy. The aim of this study was to evaluate the bony remodeling of the maxillary crest and supporting bone using AMSJI. Fifteen patients with a Cawood–Howell Class V or greater degree of maxillary atrophy were evaluated using (cone beam) computed tomography scans at set intervals: one month (T1) and twelve months (T2) after definitive masticatory loading of bilateral AMSJI implants in the maxilla. The postoperative images were segmented and superimposed on the preoperative images. Fixed evaluation points were determined in advance, and surface comparison was carried out to calculate and visualize the effects of AMSJITM on the surrounding bone. A total mean negative bone remodeling of 0.26 mm (SD 0.65 mm) was seen over six reference points on the crest. Minor bone loss (mean 0.088 mm resorption, SD 0.29 mm) was seen at the supporting bone at the wings and basal frame. We conclude that reconstruction of the severely atrophic maxilla with the AMSJI results in minimal effect on supporting bone. Reduced stress shielding with a biomechanically tuned subperiosteal implant does not induce radiographically significant crestal bone atrophy.

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Kfir, Efraim, Vered Kfir, Moshe Goldstein, Ziv Mazor, and Edo Kaluski. "Minimally Invasive Subnasal Elevation and Antral Membrane Balloon Elevation Along With Bone Augmentation and Implants Placement." Journal of Oral Implantology 38, no. 4 (August 1, 2012): 365–76. http://dx.doi.org/10.1563/aaid-joi-d-10-00129.

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Atrophic edentulous anterior maxilla is a challenging site for implant placement and has been successfully treated surgically by anterior maxillary osteoplasty. This procedure is associated with considerable discomfort, morbidity, and cost—and consequently reduced patient acceptance. The efficacy and safety of minimally invasive bone augmentation of the posterior maxilla has not been extended thus far to the anterior subnasal maxilla. We present 2 representative cases in which minimally invasive subnasal floor elevation was performed along with minimally invasive antral membrane balloon elevation. Both segments underwent bone grafting and implant placement during the same sitting. Minimally invasive anterior maxilla bone augmentation appears to be feasible. Designated instruments for alveolar ridge splitting and nasal mucosa elevation are likely to further enhance this initial favorable experience.

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Parvathi Devi, MK, and V. Madhumathi. "Rehabilitation of atrophic maxilla with a hollow maxillary complete denture: A case report." Journal of Indian Academy of Dental Specialist Researchers 1, no. 1 (2014): 28. http://dx.doi.org/10.4103/2229-3019.135443.

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Monje, Alberto, Andrés Catena, Florencio Monje, Raúl Gonzalez-García, Pablo Galindo-Moreno, Fernando Suarez, and Hom-Lay Wang. "Maxillary Sinus Lateral Wall Thickness and Morphologic Patterns in the Atrophic Posterior Maxilla." Journal of Periodontology 85, no. 5 (May 2014): 676–82. http://dx.doi.org/10.1902/jop.2013.130392.

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Gatica, Jorge, and Rodolfo Fonfach. "Pterygoid Implants, A Treatment Option." International Journal of Medical and Surgical Sciences 3, no. 1 (October 26, 2018): 767–69. http://dx.doi.org/10.32457/ijmss.2016.006.

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The partially edentulous in the posterior maxilla bone is produced mainly by the loss of molars due to caries, periodontal disease and excessive force supported by the teeth of this sector. Dental implants greater than 10 mm, are rarely placed in this area due to a higher probability of failure for the low bone volume and bone quality poor. In the skull, in the post jawbone relationship, we find a pterygomaxillary buttress. This allows, in some situations, the rehabilitation of atrophic jaws by placing implants with a parasinusal angulation, avoiding surgical techniques or more complex procedure. The pterygoid implant is a possible treatment to rehabilitate the atrophic posterior maxilla, anchored in cortical bone of the pterygoid process. A case of placement of pterygoid implants in a woman 58 years old with a large pneumatization in both maxillary sinuses, with a remaining alveolar bone 1-2 mm is reported.

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Nedir, Rabah, Nathalie Nurdin, Paul Khoury, Marc El Hage, Semaan Abi Najm, and Mark Bischof. "Paradigm Shift in the Management of the Atrophic Posterior Maxilla." Case Reports in Dentistry 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/486949.

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When the posterior maxilla is atrophic, the reference standard of care would be to perform sinus augmentation with an autologous bone graft through the lateral approach and delayed implant placement. However, placement of short implants with the osteotome sinus floor elevation technique and without graft can be proposed for an efficient treatment of clinical cases with a maxillary residual bone height of 4 to 8 mm. The use of grafting material is recommended only when the residual bone height is ≤4 mm. Indications of the lateral sinus floor elevation are limited to cases with a residual bone height ≤ 2 mm and fused corticals, uncompleted healing of the edentulous site, and absence of flat cortical bone crest or when the patient wishes to wear a removable prosthesis during the healing period. The presented case report illustrates osteotome sinus floor elevation with and without grafting and simultaneous implant placement in extreme conditions: atrophic maxilla, short implant placement, reduced healing time, and single crown rehabilitation. After 6 years, all placed implants were functional with an endosinus bone gain.

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32

H., Wagener, Niederdellmann H., Csaszar G., and Marmulla R. "Reconstruction of the severely atrophic maxilla with tabula externa." International Journal of Oral and Maxillofacial Surgery 26 (January 1997): 36. http://dx.doi.org/10.1016/s0901-5027(97)80952-6.

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33

Barnea, Eitan, Haim Tal, Joseph Nissan, Ricardo Tarrasch, Michael Peleg, and Roni Kolerman. "The Use of Tilted Implant for Posterior Atrophic Maxilla." Clinical Implant Dentistry and Related Research 18, no. 4 (April 8, 2015): 788–800. http://dx.doi.org/10.1111/cid.12342.

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34

Miera, C., J. Rueda, and N. Piñeiro. "O.261 Bone augmentation in atrophic maxilla. New limits." Journal of Cranio-Maxillofacial Surgery 34 (September 2006): 73. http://dx.doi.org/10.1016/s1010-5182(06)60288-6.

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35

Vanhove, J., C. De Clercq, L. Barbier, J. Abeloos, P. Lamoral, N. Neyt, and G. Swennen. "O.568 Immediate flxed function in the atrophic maxilla." Journal of Cranio-Maxillofacial Surgery 36 (September 2008): S143. http://dx.doi.org/10.1016/s1010-5182(08)71692-5.

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36

Mateo Arias, J., O. Maestre, D. Maestre, H. Serrano, L. Alcohol, and C. Moreno. "P.387 Occlusion based treatment in severely atrophic maxilla." Journal of Cranio-Maxillofacial Surgery 36 (September 2008): S264. http://dx.doi.org/10.1016/s1010-5182(08)72175-9.

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37

Zosky, Jack. "Surgical and restorative challenges of the severely atrophic maxilla." Journal of Oral and Maxillofacial Surgery 61, no. 8 (August 2003): 121c—122. http://dx.doi.org/10.1016/s0278-2391(03)00450-6.

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LASSILA, L. V. J., E. KLEMETTI, and V. P. LASSILA. "Position of the teeth on the edentulous atrophic maxilla." Journal of Oral Rehabilitation 28, no. 3 (March 2001): 267–72. http://dx.doi.org/10.1111/j.1365-2842.2001.tb01676.x.

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LASSILA, L. V. J., E. KLEMETTI, and V. P. LASSILA. "Position of the teeth on the edentulous atrophic maxilla." Journal of Oral Rehabilitation 28, no. 3 (March 2001): 267–72. http://dx.doi.org/10.1111/j.1365-2842.2001.tb01698.x.

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Babbush, CA. "Treatment of the Severely Atrophic Posterior Maxilla and Mandible." Implant Dentistry 6, no. 4 (1997): 299–300. http://dx.doi.org/10.1097/00008505-199700640-00007.

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van der Mark, Ewoud L., Frank Bierenbroodspot, Erik M. Baas, and Jan de Lange. "Reconstruction of an atrophic maxilla: comparison of two methods." British Journal of Oral and Maxillofacial Surgery 49, no. 3 (April 2011): 198–202. http://dx.doi.org/10.1016/j.bjoms.2010.03.001.

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Hernández-Alfaro, F. "Management of the atrophic maxilla: what have we learned?" International Journal of Oral and Maxillofacial Surgery 44 (October 2015): e7. http://dx.doi.org/10.1016/j.ijom.2015.08.937.

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Rachmiel, A., S. Turgeman, D. Shilo, and O. Emodi. "Management of severely atrophic cleft maxilla in ectodermal dysplasia." International Journal of Oral and Maxillofacial Surgery 46 (March 2017): 255. http://dx.doi.org/10.1016/j.ijom.2017.02.859.

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Chi, Seung-Seok, Ye-Jin Kim, Hyeon-Goo Kang, Kyung-Ho Ko, Yoon-Hyuk Huh, Chan-Jin Park, and Lee-Ra Cho. "Prosthetic rehabilitation of an oligodontia patient with atrophic maxilla." Journal of Korean Academy of Prosthodontics 59, no. 2 (2021): 238. http://dx.doi.org/10.4047/jkap.2021.59.2.238.

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Delai, Vanessa Marques, Leonardo Brunet Savaris, Fábio Furquim, Paulo Roberto Camati, Aline Monise Sebastiani, Tatiana Miranda Deliberador, Rafaela Scariot, and João César Zielak. "Split crest technique: a solution for atrophic anterior maxilla – case report." RSBO 1, no. 4 (July 5, 2018): 244. http://dx.doi.org/10.21726/rsbo.v1i4.552.

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Introduction: The rehabilitation of atrophic anterior maxilla can be done by different techniques. Among the procedures for bone augmentation, we can use block grafting, guided bone regeneration, and split crest technique (SCT). SCT consists in bone crest osteotomy, followed by manual/mechanical expansion up to the splitting of the buccal plate from the lingual/palatal plate through greenstick fracture. SCT advantage is the possibility of simultaneously installing a dental implant. However, SCT planning should consider the remaining bone width and the the flap type to obtain success. Objective: To report a case of implant-supported rehabilitation of an atrophic anterior maxilla using the split crest technique with insertion of 4 immediate implants, showing the effectiveness of the technique.

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Vanessa Marques Delai, Leonardo Brunet Savaris, Fábio Furquim, Paulo Roberto Camati, Aline Monise Sebastiani, Tatiana Miranda Deliberador, Rafaela Scariot, and João César Zielak. "Split crest technique: a solution for atrophic anterior maxilla – case report." RSBO 14, no. 4 (December 20, 2017): 244–09. http://dx.doi.org/10.21726/rsbo.v14i4.674.

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The rehabilitation of atrophic anterior maxilla can be done by different techniques. Among the procedures for bone augmentation, we can use block grafting, guided bone regeneration, and split crest technique (SCT). SCT consists in bone crest osteotomy, followed by manual/mechanical expansion up to the splitting of the buccal plate from the lingual/palatal plate through greenstick fracture. SCT advantage is the possibility of simultaneously installing a dental implant. However, SCT planning should consider the remaining bone width and the the flap type to obtain success. Objective: To report a case of implant-supported rehabilitation of an atrophic anterior maxilla using the split crest technique with insertion of 4 immediate implants, showing the effectiveness of the technique.

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KITAYAMA, Seiji, Hajime ODA, Tohru NAGAO, Yoshitaka SHIBATA, Kazuhiko KONDOU, and Tetsurou TOYODA. "A modification of hard palate compression for marked atrophic maxilla." Japanese Journal of Oral and Maxillofacial Surgery 33, no. 4 (1987): 791–96. http://dx.doi.org/10.5794/jjoms.33.791.

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dos Santos, Pâmela Letícia, Gustavo Henrique Souza Silva, Fernanda Rayssa Da Silva Pereira, Raquel Damazia da Silva, Mirella Lindoso Gomes Campos, Thiago Borges Mattos, and Jéssica Lemos Gulinelli. "Zygomatic Implant Subjected to Immediate Loading for Atrophic Maxilla Rehabilitation." Journal of Craniofacial Surgery 27, no. 8 (November 2016): e734-e737. http://dx.doi.org/10.1097/scs.0000000000003063.

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Romeed, Shihab A., Robert Nigel Hays, Raheel Malik, and Stephen M. Dunne. "Extrasinus Zygomatic Implant Placement in the Rehabilitation of the Atrophic Maxilla: Three-Dimensional Finite Element Stress Analysis." Journal of Oral Implantology 41, no. 2 (April 1, 2015): e1-e6. http://dx.doi.org/10.1563/aaid-joi-d-12-00276.

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Placement of zygomatic implants lateral to the maxillary sinus, according to the extrasinus protocol, is one of the treatment options in the rehabilitation of severely atrophic maxilla or following maxillectomy surgery in patients with head and neck cancer. The aim of this study was to investigate the mechanical behavior of a full-arch fixed prosthesis supported by 4 zygomatic implants in the atrophic maxilla under occlusal loading. Results indicated that maximum von Mises stresses were significantly higher under lateral loading compared with vertical loading within the prosthesis and its supporting implants. Peak stresses were concentrated at the prosthesis-abutments interface under vertical loading and the internal line angles of the prosthesis under lateral loading. The zygomatic supporting bone suffered significantly lower stresses. However, the alveolar bone suffered a comparatively higher level of stresses, particularly under lateral loading. Prosthesis displacement under vertical loading was higher than under lateral loading. The zygomatic bone suffered lower stresses than the alveolar bone and prosthesis-implant complex under both vertical and lateral loading. Lateral loading caused a higher level of stresses than vertical loading.

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Faot, Fernanda, Geninho Thomé, Amália Machado Bielemann, Caio Hermann, Ana Cláudia Moreira Melo, Luis Eduardo Marques Padovan, and Ivete Aparecida de Mattias Sartori. "Simplifying the Treatment of Bone Atrophy in the Posterior Regions: Combination of Zygomatic and Wide-Short Implants—A Case Report with 2 Years of Follow-Up." Case Reports in Dentistry 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/5328598.

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The rehabilitation of maxillary and mandibular bone atrophy represents one of the main challenges of modern oral implantology because it requires a variety of procedures, which not only differ technically, but also differ in their results. In the face of limitations such as deficiencies in the height and thickness of the alveolar structure, prosthetic rehabilitation has sought to avoid large bone reconstruction through bone grafting; this clinical behavior has become a treatment system based on evidence from clinical scientific research. In the treatment of atrophic maxilla, the use of zygomatic implants has been safely applied as a result of extreme technical rigor and mastery of this surgical skill. For cases of posterior mandibular atrophy, short implants with a large diameter and a combination of short and long implants have been recommended to improve biomechanical resistance. These surgical alternatives have demonstrated a success rate similar to that of oral rehabilitation with the placing of conventional implants, allowing the adoption of immediate loading protocol, a decrease in morbidity, simplification and speed of the treatment, and cost reduction. This case report presents complete oral rehabilitation in a patient with bilateral bone atrophy in the posterior regions of the maxilla and mandible with the goal of developing and increasing posterior occlusal stability during immediate loading.

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Journal articles on the topic 'Atrophic maxilla'

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