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Sensitivity and Specificity of Radiographic Methods for Predicting Insertion Torque of Dental Implants
Author(s) -
Cortes Arthur Rodriguez Gonzalez,
Eimar Hazem,
Barbosa Jorge de Sá,
Costa Claudio,
Arita Emiko Saito,
Tamimi Faleh
Publication year - 2015
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.2015.140584
Subject(s) - radiography , medicine , implant , demographics , dentistry , alveolar ridge , cortical bone , cone beam computed tomography , computed tomographic , radiology , orthodontics , nuclear medicine , computed tomography , surgery , pathology , demography , sociology
Background: Subjective radiographic classifications of alveolar bone have been proposed and correlated with implant insertion torque (IT). The present diagnostic study aims to identify quantitative bone features influencing IT and to use these findings to develop an objective radiographic classification for predicting IT. Methods: Demographics, panoramic radiographs (taken at the beginning of dental treatment), and cone‐beam computed tomographic scans (taken for implant surgical planning) of 25 patients receiving 31 implants were analyzed. Bone samples retrieved from implant sites were assessed with dual x‐ray absorptiometry, microcomputed tomography, and histology. Odds ratio, sensitivity, and specificity of all variables to predict high peak IT were assessed. Results: A ridge cortical thickness >0.75 mm and a normal appearance of the inferior mandibular cortex were the most sensitive variables for predicting high peak IT (87.5% and 75%, respectively). A classification based on the combination of both variables presented high sensitivity (90.9%) and specificity (100%) for predicting IT. Conclusions: Within the limitations of this study, the results suggest that it is possible to predict IT accurately based on radiographic findings of the patient. This could be useful in the treatment plan of immediate loading cases.