Evaluation of Maxillary Sinus Width and Lateral Wall Thickness Using Cone-Beam Computed Tomography

Background: Dental implants are considered the first option to replace missing teeth. Alveolar bone resorption gradually progresses following tooth extraction leading to loss of vertical bone dimension for implant placement. The lateral window approach is the most commonly used procedure to treat vertical bone loss. Objectives: The aim of the present study is to evaluate the lateral wall thickness (LWT) of the maxillary sinus and determine the influence of gender and side on maxillary LWT. Methods: This study involved a cross sectional retrospective study. Cone- beam computed tomography data were collected from 99 patients with a total of 198 maxillary sinuses that met the inclusion criteria. The patient age ranged from 18 to 35 years. On the selected sagittal section, the points of measurement are determined by a perpendicular line at 5 mm from the lowest point of the sinus floor. Measurements were done at four different areas; first premolar (P1), second premolar (P2), first molar (M1), and second molar (M2). Descriptive statistics were used to calculate mean lateral wall thickness for each tooth, and student’s t-test was used to test the effect of gender and side on maxillary LWT. Results: The greatest mean LWT was observed around the left first maxillary molar (2.43±0.82), while the lowest mean LWT was observed around the right second maxillary premolar (1.62±0.61). There was no significant difference in the LWT around any tooth (M1 p=0.56, M2 p=0.92, P1 p=0.14, P2 p=0.19). Conclusion: There was no significant difference in both males and females of the lateral wall thickness in the left and right side of maxillary sinus.

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AssociationBetween the Lateral Wall Thickness of the Maxillary Sinus and the Dental Status: Cone Beam Computed Tomography Evaluation

Iranian Journal of Radiology ◽

10.5812/iranjradiol.6675 ◽

2014 ◽

Vol 10 (4) ◽

Author(s):

Saeedeh Khajehahmadi ◽

Amin Rahpeyma ◽

Seyed Hosein Hoseini Zarch

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Wall Thickness ◽

Cone Beam Computed Tomography ◽

Lateral Wall ◽

Dental Status ◽

Cone Beam

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Cone Beam Computed Tomography Evaluation of the Artery in the Lateral Wall of the Maxillary Sinus

Implant Dentistry ◽

10.1097/id.0000000000000771 ◽

2018 ◽

Vol 27 (4) ◽

pp. 434-438

Author(s):

Claudio Rostetter ◽

Alex Hungerbühler ◽

Michael Blumer ◽

Martin Rücker ◽

Maximilian Wagner ◽

...

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Lateral Wall ◽

Cone Beam

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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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Intrusion of maxillary molar roots into the maxillary sinus in a sample of the Egyptian population using cone beam computed tomography

Egyptian Journal of Radiology and Nuclear Medicine ◽

10.1186/s43055-021-00540-y ◽

2021 ◽

Vol 52 (1) ◽

Author(s):

Esraa Ahmed Eid ◽

Fatma Mostafa El-Badawy ◽

Walaa Mohamed Hamed

Keyword(s):

Computed Tomography ◽

Maxillary Sinus ◽

Cone Beam Computed Tomography ◽

Third Molar ◽

Cone Beam ◽

Egyptian Population ◽

Maxillary Molar ◽

Maxillary Sinus Floor ◽

Sinus Floor ◽

The Right

Abstract Background The proximity of the maxillary sinus floor to the maxillary molar roots increases the probability of oroantral communication on conducting any surgical or endodontic procedure in the involved area. The aim of this study is to evaluate the relationship between each maxillary molar root and maxillary sinus floor using cone beam computed tomography. Predicting the probability of protrusion of each root into the sinus will consequently predict the probability of occurrence of the oroantral fistula in a sample of the Egyptian population. Results The total number of roots located outside the sinus was 121 (35.3%), while those contacting the sinus floor were 80 (23.3%) and those intruded the sinus were 141 (41.2%). The percentage of root intrusion into the sinus in males (56.9%) was significantly (p = 0.01) higher than females (42.9%). The probability of root intrusion in the left molars (54.2%) was non-significantly (p = 0.067) higher than that of the right side (44.3%). As for the type of tooth, the second molar showed the highest probability of root intrusion into the sinus (55.3%) followed by the third molars (52.6%) then the first molars (40.9). According to the type of root, the mesiobuccal root showed the highest probability of intrusion into the sinus (50.9%) followed by the palatal root (49.1%) then the distobuccal root (47.4%). However, the difference in both type of tooth and type of root was statistically non-significant (p = 0.051 and 0.869 respectively). As for the individual root with the highest probability of intrusion, the mesio-buccal root of the right third molar is the most frequent root to intrude the sinus (71.4%) and the mesio-buccal root of the right first molar is the least frequent (22.7%). Conclusions In a sample of the Egyptian population, males exhibit higher probability of root protrusion into the sinus than females. The side and type of tooth are of higher impact on the probability of its intrusion into the sinus compared to the type of root. Left second molars are at a higher risk of oroantral communications on surgical or endodontic procedures compared to other molars due to its highest probability of intrusion into the sinus.

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