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Factors affecting maxillary sinus pneumatization following posterior maxillary tooth extraction.
Hyun Chang Lim1, Sangyup Kim2, Do Hyup Kim3
1Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyung Hee University, Seoul, Korea. hyun-chang.lim@khu.ac.kr.
Journal of Periodontal & Implant Science
|August 13, 2021
Summary
Maxillary sinus pneumatization averaged 1.56±3.93 mm. Extraction of a second molar significantly increased this pneumatization, impacting dental implant treatment planning.
Area of Science:
- Dentistry
- Oral Surgery
- Radiology
Background:
- Maxillary sinus pneumatization, the expansion of the maxillary sinus into the alveolar bone, is a common phenomenon after tooth extraction.
- Understanding the factors influencing this process is crucial for successful dental implant placement in the posterior maxilla.
Purpose of the Study:
- To quantitatively assess the degree of maxillary sinus pneumatization following tooth extraction.
- To identify specific factors that influence the extent of sinus pneumatization.
Main Methods:
- Panoramic radiographs of 145 patients before and after tooth extraction were analyzed.
- Superimposition of pre- and post-extraction radiographs allowed measurement of sinus floor vertical changes.
- Statistical analysis, including mixed models, identified factors affecting pneumatization.
Main Results:
- The average sinus pneumatization was 1.56±3.93 mm.
- Extraction of maxillary second molars showed the greatest pneumatization (2.25±4.39 mm).
- Factors like male sex and sinus membrane thickening showed non-significant trends towards increased pneumatization.
Conclusions:
- Maxillary sinus pneumatization is a significant consideration in posterior maxilla implantology.
- The extraction of second molars is a key factor driving increased pneumatization and must be accounted for in treatment planning.
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