scholarly journals Antero-medial maxillary sinus angle is an additional predictive factor for enhanced visibility during pre-lacrimal window approach

2020 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
A. Andrianakis ◽  
C. Holzmeister ◽  
A. Wolf ◽  
P. Kiss ◽  
U. Moser ◽  
...  

Pathologies located at the posterior surface of the anterior wall and the floor (alveolar recess) of the maxillary sinus are challen- ging to visualize and access. Open approaches including lateral rhinotomy, Caldwell-Luc procedure or midfacial degloving allow a broad visualization but with a significant likelihood of post-operative morbidity.

Author(s):  
Giovanni Battista Menchini-Fabris ◽  
Paolo Toti ◽  
Giovanni Crespi ◽  
Ugo Covani ◽  
Roberto Crespi

Background: The present study is designed to compare the outcomes of two sinus augmentation procedures: distal displacement of the anterior wall versus standard sinus lifting and grafting with a lateral window approach. Methods: In the displacement group, a localized surgical fracture of the sinus floor achieved through an electromagnetic device results in the distal displacement of the anterior wall. In the filling group, sinus lifting (with lateral access) and grafting with particulate xenogeneic bone substitute was performed. Bone volume beneath the maxillary sinus was investigated with computerized tomography after baseline and postoperative data superimposition. Clinical and radiological outcomes over three years had been evaluated. Results: Forty-three dental implants were selected. The two sinus lift procedures significantly increased the bone volume (p-value ≤ 0.0017) in the displacement group from 1.17 ± 0.34 to 1.53 ± 0.39 cc, with a final bone gain of +0.36 ± 0.17 cc, and in the filling group from 1.24 ± 0.41 to 1.94 ± 0.68 cc, with a bone augmentation of +0.71 ± 0.31 cc. No events of dental implant bulging into the maxillary sinus occurred. Two implants failed early on in the filling group, attesting the 3-year survival rate of 92.6% (CI95%: 82.7–100%). Marginal bone loss at the distal aspect was 1.66 ± 0.72 and 1.25 ± 0.78 mm, respectively, for the displacement and filling groups, with a significant difference (p-value = 0.0497). Conclusion: Results showed a significant and effective bone gain around dental implants at a 3-year survey for both sinus augmented by backward displacement of the anterior wall (+34%) and sinus lifting and grafting with a lateral window approach (+57%).


2020 ◽  
Author(s):  
Roberto Crespi ◽  
Paolo Toti ◽  
Ugo Covani ◽  
Carlo Bruno Brevi ◽  
Luigi Rubino ◽  
...  

Abstract Background To compare a sinus augmentation procedure with a distal displacement of the anterior wall to a standard sinus lifting and grafting with a lateral window approach. Methods In the displacement group, a sinus surgical fracture results in the distal displacement of the anterior wall by means of an electromagnetic device. In the filling group, a sinus lifting with lateral access and grafting with particulate bone was performed. Bone volume beneath the maxillary sinus was investigated with Computerized Tomography after data superimposition. Clinical and radiological outcomes over 3 years had been evaluated. Results Forty-three dental implants were enrolled. The surgery of both groups significantly increased the bone volume in the VOIs (p-value≤0.0017) respectively for displacement group from 1.17±0.34cc to 1.53±0.39cc with a final bone volume gain of +0.36±0.17cc and for filling group from 1.24±0.41cc to 1.94±0.68cc with a bone augmentation of 0.71±0.31cc. Two implants early failed in the filling group, attesting the 3-year survival rate to 92.6%(CI95%: 82.7%-100%). Marginal bone loss at the distal aspect was 1.66±0.72mm and 1.25±0.78mm for displacement and filling group, respectively (p-value=0.0497). Conclusions The study showed an effective bone gain around dental implants at 3-year of survey both for sinus augmented by backward displacement of the anterior wall (+34%) and by sinus lifting with a lateral window approach (+57%).


2007 ◽  
Vol 122 (9) ◽  
pp. 918-920 ◽  
Author(s):  
K Sato

AbstractObjectives:Endoscopic sinus surgery has been widely performed to treat nose and paranasal diseases. However, it is difficult to manipulate anterior wall lesions of the maxillary sinus using conventional surgical instruments. This paper presents a method of performing endoscopic surgery for anterior wall lesions of the maxillary sinus, using a 135° reflective CO2 laser.Method:A CO2 laser with a 135° reflective tip on the pipe-guide handpiece and a CO2 laser angulated to the same degree were used. The pipe-guide handpiece with reflective tip was inserted into the nasal cavity and the base of the maxillary sinus anterior wall lesion was vaporised and removed via an enlarged natural ostium. During the procedure, the maxillary antrum was visualised with a 70° endoscope. Ten cases of maxillary sinus anterior wall lesion underwent this surgical procedure.Results:In all cases, the base of the maxillary sinus anterior wall lesion was removed completely and recurrence avoided.Conclusion:This method is a reliable procedure enabling endoscopic sinus surgery for anterior wall lesions of the maxillary sinus.


2007 ◽  
Vol 37 (4) ◽  
pp. 691 ◽  
Author(s):  
Je-Young Yon ◽  
Gyung-Joon Chae ◽  
Ui-Won Jung ◽  
Chang-Sung Kim ◽  
Seong-Ho Choi ◽  
...  

2012 ◽  
Vol 12 (3) ◽  
pp. 161-171 ◽  
Author(s):  
Stephen S. Wallace ◽  
Dennis P. Tarnow ◽  
Stuart J. Froum ◽  
Sang-Choon Cho ◽  
Homayoun H. Zadeh ◽  
...  

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