Maxillary Sinus Floor and Alveolar Crest Alterations Following Extraction of Single Maxillary Molars: A Retrospective CBCT Analysis
| Autor: | Neema Bakhshalian, Essa Alwazan, Stephen S. Wallace, Homayoun H. Zadeh, Sabina Hameed |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Molar
Cone beam computed tomography Sinus Floor Augmentation Maxillary sinus medicine.medical_treatment Alveolar crest 03 medical and health sciences 0302 clinical medicine medicine Humans Sinus (anatomy) Reduction (orthopedic surgery) Dental alveolus Retrospective Studies Orthodontics business.industry Spiral Cone-Beam Computed Tomography 030206 dentistry Cone-Beam Computed Tomography Maxillary Sinus medicine.anatomical_structure Periodontics sense organs Oral Surgery business |
| Zdroj: | The International Journal of Periodontics & Restorative Dentistry. 39:545-551 |
| ISSN: | 0198-7569 |
| Popis: | This retrospective study investigated the changes in the maxillary sinus floor and alveolar crest following extraction of maxillary molars. Pre- and postextraction cone beam computed tomography scans of 23 patients were analyzed. Paired-sample t tests compared pre- and postextraction measurements, and independent-sample t tests were utilized for intergroup comparisons. Pearson correlation was used to assess the association between the measured variables and the outcome measures. The mean alveolar bone height reduction was 3.42 ± 2.40 mm and the alveolar crest loss was 3.07 ± 2.53 mm. The maxillary sinus floor position shifted coronally by a mean of 0.47 ± 0.32 mm. Approximately 88% of postextraction changes in alveolar bone height were due to alveolar crest changes, compared to 12% due to changes in the sinus floor position. The results of this study challenge the commonly held concept of extensive postextraction maxillary sinus floor alterations leading to sinus pneumatization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|