Prediction of strain distribution in maxillary sinus membrane during upper jaw implant surgery

2017 ◽  
Vol 2017 (0) ◽  
pp. OS1109
Author(s):  
Kazuya NISHIKAWA ◽  
Naoki TAKANO ◽  
Satoru MATSUNAGA ◽  
Shinya HONMA ◽  
Yasutomo YAJIMA
Membranes ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 438
Author(s):  
Horia Mihail Barbu ◽  
Stefania Andrada Iancu ◽  
Violeta Hancu ◽  
Daniel Referendaru ◽  
Joseph Nissan ◽  
...  

Background: The purpose of the study was to analyze the efficacy of platelet-rich fibrin (PRF) as a single augmentation material for complicated cases of maxillary sinus floor elevation, resulting from membrane perforation or previous infections. Methods: Implant insertion in the posterior region of the maxilla was simultaneously performed with maxillary sinus floor augmentation. Schneiderian membrane elevation can be accompanied by extremely serious sinus membrane perforation, due to accidental tearing or intended incision for mucocele removal. PRFs were placed in the sinus cavity both for membrane sealing and sinus floor grafting. Radiological, histological and micro-CT analyses were performed. Implant survival was assessed every 6 months for 1 to 4 years, with a mean follow up of 1.8 years, after prosthetic loading. Radiological examinations were performed on CBCT at 9 and 12 and 36 months postoperatively and revealed improved degrees of radiopacity. Results: 19 implants were simultaneously placed in the course of nine maxillary sinus floor augmentation surgeries, with successful outcomes in terms of bone grafting and implant integration. New bone formation was evidenced 12 months postoperatively on radiological examination, micro-CT analysis, and histological analysis of a harvested bone segment from the augmented maxillary sinus. The mean gain in bone height of the sinus floor augmentation was 6.43 mm, with a maximum of 9 mm. The mean amount of vital bone obtained from histologic assessment was 52.30%, while bone volume/tissue volume ratio in micro-CT 3D had a mean of 50.32%. Conclusions: PRF may be considered as an alternative treatment for a single surgery of sinus augmentation with simultaneous implant placement, even in complicated cases with significant sinus membrane tearing.


Medicina ◽  
2021 ◽  
Vol 57 (6) ◽  
pp. 626
Author(s):  
Jae-Ha Baek ◽  
Byung-Ock Kim ◽  
Won-Pyo Lee

Oro-antral communication (OAC) acts as a pathway for bacteria between the maxillary sinus and oral cavity, and is a common complication after the removal of a dental implant or extraction of a tooth from the maxillary posterior area. In the case of an untreated OAC, oro-antral fistula develops and becomes epithelialized. We aimed to introduce a treatment for OAC closure via a sinus bone grafting procedure using bone tacks and a collagen membrane with an allograft. The procedure was performed by applying an absorbable membrane made in pouch form. This membrane acted as a barrier for closing the large sinus membrane perforation. Bone tacks were used to fix the membranes. Subsequently, the maxillary sinus was filled with the allograft, and the absorbable membrane was reapplied. Primary closure was achieved by performing a periosteum-releasing incision for a tension-free suture. After 6 months, sufficient bone dimensions were gained without any occurrence of maxillary sinusitis or recurrence of OAC. Additional bone grafts and implantation could be performed to rehabilitate the maxillary posterior area. We conclude that this technique might be a useful treatment for reconstructing the maxillary posterior area with simultaneous sinus bone graft and OAC closure.


2006 ◽  
Vol 64 (2) ◽  
pp. 277-282 ◽  
Author(s):  
Leon Ardekian ◽  
Efrat Oved-Peleg ◽  
Eli E. Mactei ◽  
Micha Peled

1930 ◽  
Vol 26 (9) ◽  
pp. 944-944
Author(s):  
P. D. Buev

Society of Physicians at Kazan University. Rino laryngo otiatric section. Session 2 / VI 1930 Dr. PD Buyev demonstrated a patient with ulcerative lesions of the alveolar process of the left upper jaw, noted the interest of the case in relation to differential diagnosis and spoke in favor of the likelihood of luesa or cholesteatombi of the maxillary sinus in the shown patient. Prof. Trutnevidr Lebedevsky joined the speaker's opinion.


2019 ◽  
pp. 769-773
Author(s):  
Oruç Yener Çam ◽  
Burcu Çam ◽  
Işıl Adadan Güvenç
Keyword(s):  

2018 ◽  
Vol 21 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Saša Marin ◽  
Barbara Kirnbauer ◽  
Petra Rugani ◽  
Michael Payer ◽  
Norbert Jakse

2019 ◽  
Vol 30 (S19) ◽  
pp. 273-273
Author(s):  
Hyunju Chung ◽  
Yongsung Oh ◽  
Euiri Nah ◽  
Jinsol Lee ◽  
Hongso Yang

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