Clinical ResearchResolution of Maxillary Sinus Mucositis after Endodontic Treatment of Maxillary Teeth with Apical Periodontitis: A Cone-Beam Computed Tomography Pilot Study
Section snippets
Subjects
Data from a preliminary study on 3 subjects who had AP associated with maxillary teeth—second premolar, first molar, and second molar—was used for sample size calculation. CBCT imaging revealed the presence of mucositis in 2 of 3 subjects (66%), which is slightly lower than the previously reported range of 77% to 83% in CBCT studies 13, 14. It was estimated that full or partial resolution of mucositis after endodontic treatment would be discernible in 90% of subjects, suggested by the
Results
A high degree of repeatability in the linear CBCT measurements was achieved. The intraobserver agreement for PAI calibration was k = 0.86, indicating very good agreement (29). A total of 30 maxillary teeth (4 first premolars, 6 second premolars, 15 first molars, and 5 second molars) and sinuses were assessed. Preoperative changes were recorded within 24 of 30 sinuses (80%), with 10 sinuses displaying >1 change. Mucositis was recorded in 14 of 30 sinuses (47%), periostitis in 16 of 30 sinuses
Discussion
Although AP is regarded primarily as a localized infection, different changes have been described in the maxillary sinus adjacent to the affected teeth with a prevalence exceeding 70% 11, 12. Among these changes, mucositis was detected by CBCT scanning in 77% to 83% of patients 13, 14. Our preliminary data supported the relatively high prevalence of mucositis in subjects with AP affecting maxillary teeth. At the time this study was undertaken, no CBCT-based evidence was available on the
Acknowledgments
The authors thank Dr Jerry Chapnik who served as an otolaryngology consultant.
The authors deny any conflicts of interest related to this study.
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Supported by grants from the American Association of Endodontists Foundation, the International Federation of Endodontic Associations, the Canadian Academy of Endodontics Endowment, and the Alpha Omega Fraternity.