scholarly journals A Novel Technique to Prevent the Sinus Membrane Collapse for Maxillary Sinus Floor Augmentation without Bone Graft: Technical Note

2018 ◽  
Author(s):  
Antonio Scarano ◽  
Francesco Carinci ◽  
Felice lorusso ◽  
Francesco Inchingolo
Keyword(s):  
Surgical Techniques ◽  
Technical Note ◽  
Barrier Membrane ◽  
Sinus Cavity ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Without Bone Graft ◽  
Bone Tissue Formation

Abstract A variety of surgical techniques have been developed to reconstruct the posterior maxilla when bone volume is insufficient. A barrier membrane or bone window pushed inside the sinus cavity as the ‘‘roof’’ of the sinus cavity for preserve the space and help bone. The heterologous cortical lamina is used for the mechanical support, without any grafting material, of sinus membranes resulting in only bone tissue formation and not mixed with the graft.

A Sinus Floor Reaugmentation Technique Around an Apically Exposed Implant Into the Maxillary Sinus

2019 ◽  
Vol 45 (3) ◽  
pp. 213-217
Author(s):  
Daisuke Ueno ◽  
Noriko Banba ◽  
Akira Hasuike ◽  
Kazuhiko Ueda ◽  
Toshiro Kodama
Keyword(s):  
Case Report ◽  
Maxillary Sinus ◽  
Dental Implants ◽  
Treatment Option ◽  
Prolonged Treatment ◽  
Sinus Cavity ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Sinus Floor ◽  
Recovery Approach

Sinus floor augmentation (SFA) is the most predictable treatment option in the atrophic posterior maxilla. However, exposure of the apical implant body into the maxillary sinus cavity is an occasionally observed phenomenon after SFA. Although most penetrating dental implants remain completely asymptomatic, they may induce recurrent rhinosinusitis or implant loss. Removal of the implant should be considered if there is significant implant exposure that results in prolonged treatment and increased costs. This case report demonstrates a recovery approach using sinus floor reaugmentation without implant removal in a patient with an apically exposed implant into the maxillary sinus cavity.

scholarly journals Surgeons’ Performance Determining the Amount of Graft Material for Sinus Floor Augmentation Using Tomography

2017 ◽  
Vol 28 (3) ◽  
pp. 385-390 ◽  
Author(s):  
Adriana Dibo Cruz ◽  
Guilherme Alvares Peixoto ◽  
Marcelo Freitas Aguiar ◽  
Gabriela Alessandra Cruz Galhardo Camargo ◽  
Nicolas Homs
Keyword(s):  
Maxillary Sinus ◽  
Diagnostic Tools ◽  
Graft Material ◽  
Convenience Sample ◽  
Computed Tomography Images ◽  
Posterior Maxilla ◽  
Sinus Floor Augmentation ◽  
Maxillary Sinus Floor ◽  
Sinus Floor ◽  
Maxillary Sinus Floor Augmentation

Abstract This study aimed to assess the performance of surgeons in determining the amount of graft material required for maxillary sinus floor augmentation in a preoperative analysis using cone-beam computed tomography images. A convenience sample of 10 retrospective CBCT exams (i-CAT®) was selected. Scans of the posterior maxilla area with an absence of at least one tooth and residual alveolar bone with an up to 5 mm height were used. Templates (n=20) contained images of representative cross-sections in multiplanar view. Ten expert surgeons voluntarily participated as appraisers of the templates for grafting surgical planning of a 10 mm long implant. Appraisers could choose a better amount of graft material using scores: 0) when considered grafting unnecessary, 1) for 0.25 g in graft material, 2) for 0.50 g, 3) for 1.00 g and 4) for 1.50 g or more. Reliability of the response pattern was analyzed using Cronbach’s a. Wilcoxon and Mann-Whitney tests were performed to compare scores. Regression analysis was performed to evaluate whether the volume of sinuses (mm3) influenced the choose of scores. In the reliability analysis, all values were low and the score distribution was independent of the volume of the maxillary sinuses (p>0.05), which did not influence choosing the amount of graft material. Surgeons were unreliable to determine the best amount of graft material for the maxillary sinus floor augmentation using only CBCT images. Surgeons require auxiliary diagnostic tools to measure the volume associated to CBCT exams in order to perform better.

Axial Triangle of the Maxillary Sinus, and its Surgical Implication With the Position of Maxillary Sinus Septa During Sinus Floor Elevation: A CBCT Analysis

2020 ◽  
Vol 46 (4) ◽  
pp. 415-422
Author(s):  
Junho Jung ◽  
Jung Soo Park ◽  
Seoung-Jin Hong ◽  
Gyu-Tae Kim ◽  
Yong-Dae Kwon
Keyword(s):  
Maxillary Sinus ◽  
Surgical Techniques ◽  
Lateral Sinus ◽  
Sinus Floor Elevation ◽  
Second Molar ◽  
Sinus Wall ◽  
Posterior Maxilla ◽  
Significant Difference ◽  
Sinus Floor ◽  
Molar Region

The aim of this study was to measure the convexity of the lateral wall of the maxillary (Mx) sinus and identify the locational distribution of antral septa in relation to the zygomaticomaxillary buttress (ZMB), in order to suggest another anatomical consideration and surgical modification of sinus floor elevation procedures. This study was designed as a cross-sectional study, and a total of 134 patients and 161 sinuses containing edentulous alveolar ridges were analyzed. The angle between the anterior and lateral walls of the Mx sinus (lateral sinus angle [LSA]), and the angle between the midpalatal line and the anterior sinus wall (anterior sinus angle [ASA]) were measured. Mean LSAs and ASAs were 105.9° ± 9.86° and 58.4° ± 6.43°, respectively. No significant difference between left and right sides was found (LSA, P = .420; right = 105.5° ± 9.27°; left = 105.5° ± 9.27° and ASA, P = .564; right = 57.9° ± 6.80°; left = 58.8° ± 6.02°). The prevalence of septa was 37.3%, and it was most frequently noted in the second molar region (32.8%), followed by the first molar (20.9%), retromolar (16.4%), and second premolar regions (14.9%). Septa were most frequently located posterior to the ZMB (49.2%), while ZMB was mostly located in the first molar region (66.4%). Narrow LSAs may complicate the surgical approach to the posterior maxilla, especially when sinus elevation should be used in the second molar region. Considering the occasional presence of antral septa, membrane elevation may be complicated when a septum is encountered during the procedure. These results suggest that 3-dimensional examination of the convexity of the Mx sinus should be performed preoperatively to choose proper surgical techniques and minimize surgical complications.

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