Influence of the position of the antrostomy in sinus floor elevation assessed with cone-beam computed tomography: A randomized clinical trial

Objective: To evaluate the thickness of the maxillary sinus mucosa before and after performing the elevation of the maxillary sinus floor in partially and very edentulous patients in the posterior sector using cone beam computed tomography images. Methods: Pre and postsurgical tomographic images of 31 cases were included; 24 of which were a unilateral maxillary sinus floor elevation procedure, while 7 cases involved both pneumatic cavities. Measurements were taken at the sagittal and coronal planes. All of them, perpendicular to the sinus mucosa. A retrospective analysis of cone beam computed tomography was performed and the groups were compared with the Wilcoxon test for related samples and the variables graft size, preoperative membrane thickness, age and gender with multivariate analysis. Setting the level of statistical significance p <0.05. Results: A great variability of the thickness of the sinus membrane was confirmed, both in the pre-operative and in the post-operative. It was observed that the mean values in millimeters obtained in the pre-op were 1.45 and 1.12 in the post-op. The medians showed that the membrane thickness values are more atypical and more extreme in the preoperative values (0.79) than in the postoperative values (0.94), which are more normal and uniform. Conclusion: Under the conditions analyzed, there was an absence of changes in the dimensions of the sinus mucosa in the pre and postoperative period of the tomographic images, highlighting evidence of great inter-individual variability.

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Cone Beam Computed Tomography Evaluation of Bone Remodeling Following the Osteotome Sinus Floor Elevation Technique for Future Site Development

The International Journal of Periodontics & Restorative Dentistry ◽

10.11607/prd.1798 ◽

2016 ◽

Vol 36 (4) ◽

pp. 497-505 ◽

Cited By ~ 1

Author(s):

Kazutoshi Nakajima ◽

Yukio Kusama

Keyword(s):

Computed Tomography ◽

Bone Remodeling ◽

Cone Beam Computed Tomography ◽

Cone Beam ◽

Sinus Floor Elevation ◽

Site Development ◽

Sinus Floor ◽

Osteotome Sinus Floor Elevation

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Evaluation of the Posterior Superior Alveolar Artery Prior to Sinus Floor Elevation via Lateral Window Technique: A Cone-Beam Computed Tomography Study

Journal of Advanced Oral Research ◽

10.1177/2320206820940463 ◽

2020 ◽

Vol 11 (2) ◽

pp. 215-223

Author(s):

Elçin Bedelog˘lu ◽

Mustafa Yalçın

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Lateral Wall ◽

Cone Beam ◽

Sinus Floor Elevation ◽

Mean Values ◽

Detection Point ◽

Sinus Floor ◽

The Mean

Aim: To evaluate the prevalence, diameter, localization of the posterior superior alveolar artery (PSAA) and the relationship between PSAA and the floor of the maxillary sinus and the thickness of the maxillary sinus lateral wall using cone-beam computed tomography (CBCT). Material and Methods: In this retrospective study, more than 500 CBCT images were retrieved. Out of them 156 CBCT images were related to the sinus floor elevation, among which 120 CBCT images were enrolled in the study based on the inclusion criteria, and 36 CBCT images were excluded. A total of 120 CBCT images of the PSSA from 60 patients comprising 32 (53.3%) men and 28 (46.7%) women were analyzed. Statistical data were analyzed using SPSS for Windows version 22. Descriptive statistics (mean, standard deviation, frequency) were used for the analyses. Results: The ages of the participants ranged between 26 and 76 years and the mean age was 54.48 ± 10.92 years. The PSAA was detected on the right side in 95% of the CBCT scans and on the left side in 85% of the maxillary sinuses. At the first detection point (FDP) and last detection point (LDP), the mean values of the distance between the inferior border of the PSAA and the floor of the maxillary sinus were 9.54 ± 4.27 mm and 7.91 ± 4.75 mm, respectively. The mean diameters of the PSAA at the FDP and LDP were 1.36 ± 0.46 mm and 1.12 ± 0.35 mm, respectively. Conclusion: Detection of the characteristics of the PSAA by using CBCT is crucial for handling the sinus floor elevation procedures uneventfully.

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