IADR Abstract Archives
Determine Accuracy of Implant Treatment Planning With CBCT
Objectives: Implants are widely used to replace missing teeth and cone beam computed tomography (CBCT) is the recommended imaging for implant treatment planning. It is important to evaluate how accurate CBCT based implant treatment planning is. However, not many studies have been conducted in the area. The objective of the study is to correlate the projected implant sizes based on the CBCT alveolar ridge measurements with the actual sizes of implants placed, to determine the accuracy of CBCT related implant treatment planning.
Methods: CBCT scans taken from 2017-2022 at East Carolina University School of Dental Medicine were screened and cases for implant placement were included. The measurements for the heights and widths of edentulous ridges were collected from CBCT reports, and the data on actual implant sizes were extracted from Axium. The sites for central incisor, canine, 1st premolar and 1st molar of maxilla and mandible were analyzed. One-way analysis of variance was run to determine the average sizes for alveolar ridges/implants, and Pearson correlation analysis was conducted to determine the accuracy of CBCT based implant treatment planning.
Results: A total of 544 cases were analyzed, with males 288, females 256, and an age range of 19-86 years old. The patients were predominately Caucasians. In average, implants had diameters of 4.17±0.38 mm and lengths of 10.05±1.17 mm, and alveolar widths and heights were 3.74 and 4.31 mm larger than implant diameters and lengths, respectively. Of the analyzed locations, implants placed at mandibular canine & first molar and maxillary first premolar demonstrated significant correlations with the sizes of the edentulous ridges (P< 0.05).
Conclusions: CBCT based alveolar ridge measurements have been demonstrated as reliable parameters to predict implant sizes. However, its accuracy may be limited by anatomic factors, such as angle of edentulous ridges and proximity to vital anatomic landmarks.
Methods: CBCT scans taken from 2017-2022 at East Carolina University School of Dental Medicine were screened and cases for implant placement were included. The measurements for the heights and widths of edentulous ridges were collected from CBCT reports, and the data on actual implant sizes were extracted from Axium. The sites for central incisor, canine, 1st premolar and 1st molar of maxilla and mandible were analyzed. One-way analysis of variance was run to determine the average sizes for alveolar ridges/implants, and Pearson correlation analysis was conducted to determine the accuracy of CBCT based implant treatment planning.
Results: A total of 544 cases were analyzed, with males 288, females 256, and an age range of 19-86 years old. The patients were predominately Caucasians. In average, implants had diameters of 4.17±0.38 mm and lengths of 10.05±1.17 mm, and alveolar widths and heights were 3.74 and 4.31 mm larger than implant diameters and lengths, respectively. Of the analyzed locations, implants placed at mandibular canine & first molar and maxillary first premolar demonstrated significant correlations with the sizes of the edentulous ridges (P< 0.05).
Conclusions: CBCT based alveolar ridge measurements have been demonstrated as reliable parameters to predict implant sizes. However, its accuracy may be limited by anatomic factors, such as angle of edentulous ridges and proximity to vital anatomic landmarks.