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This study aimed to quantify the buccal alveolar bone thickness (BABT) in the maxillary molar region to provide a practical guideline for vertical temporary skeletal anchorage device (TSAD) placement using cone-beam computed tomography (CBCT). It also aimed to develop a linear regression model for use in digital models to predict available BABT.The sample for this retrospective study consisted of 31 sites (24 patients; mean age, 28.75 years; range, 18-44 years) in which vertical TSADs were placed successfully in the maxillary posterior interradicular area during the total arch distalization procedure. BABT was measured at 3 points of the interradicular space using CBCT, and the buccal alveolar region thickness (BART), which included buccal-attached gingival thickness and the buccal alveolar bone, was measured using the digital model. In CBCT, BABT was measured at the most convex point of the lamina dura of the root adjacent to the vertical TSAD mesially, at the most convex point of the lamina dura of the root adjacent to the vertical TSAD distally, and the central point between the mesial and distal points. Three linear measurements were obtained at 2, 4, and 6 mm apical to the alveolar crest: the mesial thickness, the central thickness (centralBoth BABT and BART at the central position (centralThe mean BABT and BART at the central position, in which we suggest placing vertical TSADs, were 3.44 ± 0.69 mm in CBCT and 6.28 ± 1.11 mm in the digital model, respectively. The minimum BABT and BART at the central position in which vertical TSAD was placed successfully were 2.38 mm in CBCT and 4.25 mm in the digital model. There was a strong correlation between central |
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