Computer-aided three-dimensional assessment of periodontal healing distal to the mandibular second molar after coronectomy of the mandibular third molar: a prospective study

Autor: Z. Y. Yan, Y. Tan, X. Y. Xie, W. He, C. B. Guo, N. H. Cui
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: BMC Oral Health, Vol 20, Iss 1, Pp 1-10 (2020)
Druh dokumentu: article
ISSN: 1472-6831
DOI: 10.1186/s12903-020-01250-z
Popis: Abstract Background The periodontal healing distal to the mandibular second molar (M2M) after coronectomy of the M3M has shown controversial results. We aimed to combine a digital method with cone-beam computed tomography (CBCT) and estimate periodontal healing of M2M after M3M coronectomy. An accurate and stable indicator in three dimensions was also explored tentatively. Methods Patients with a M3M in contact with the inferior alveolar canal were included. CBCT was applied immediately after coronectomy (baseline) and 6-months later. Data were investigated with digital software for registration. Previously reported and coronectomy-related factors were included for univariate and multivariate analyses. Results A total of 181 patients (213 M3Ms) completed 6-month follow-up. Significant reduction in the distal intra-bony defect (DBD) depth of the M2M was shown (1.28 ± 1.24 mm, P
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