Importance of CBCT Analysis in the Preoperative Planning of TAD Placement in the Anterior Maxillary Region

The precise planning of orthodontic temporary anchorage devices (TADs) in the anterior maxilla is crucial due to anatomical complexity. This study aimed to evaluate the bone parameters for mini-implant placement using cone-beam computed tomography (CBCT). A total of 65 patients aged 15–50 years underwent CBCT analysis. Measurements were taken in three anterior regions (between and adjacent to central/lateral incisors and canines) at four vertical levels (2 mm, 4 mm, 6 mm, and 8 mm from the alveolar crest). Parameters included interdental width (IDW), buccopalatal bone depth (BPD), and distances from ideal implant points (IPPs) to adjacent structures. Descriptive statistics included means, standard deviations, confidence intervals, and frequency distributions. Statistical analysis revealed age-related differences, with subjects aged 21–30 showing higher CP-IPP and IDW values, and those aged 15–20 showing higher BPD values. Gender differences were noted in IDW and BPD, but not in CP-IPP. The most favorable IDW (≥3 mm) was observed in regio 1 at level A, while unfavorable values were found in regio 2′ at levels C and D. Positive correlations between IDW and BPD were found in multiple regions and levels. These results may guide safer and more predictable TAD placement. Considering that radiographic analysis forms the basis of this study, future in vivo studies are needed to confirm the practical impact of the proposed measurements.