ACCURACY OF CONE-BEAM COMPUTED TOMOGRAPHY IN PREDICTING THE DIAMETER OF UNERUPTED TEETH

김성희; 김영종; Shin Kim; JEONG,TAE-SUNG

doi:10.5933/JKAPD.2012.39.2.139

The purpose of this study was to evaluate the accuracy and reproducibility of measuring the size of unerupted permanent tooth via cone beam computed tomography(CBCT). Ten children were scanned with dental CBCT,and 3-dimensional reconstruction of the dentitions were generated CBCT. Mesio-distal dimension and buccolingual dimension of the teeth were made directly on the model with a high-precision digitalcaliper and on the CBCT by using three-dimensional dental imaging software. Reliability and accuracy were assessed by using intraclass correlation and paired t-tests. (p<0.05)The results were as follows :1. Intraclass correlations were above 0.9 for Both the CBCT and the model measurements, showinghigh reliability. 2. Although there were high correlation values(r=0.91) between CBCT and model messurement methods,comparisons between the CBCT and model messurement methods showed a statistically significant difference(p<0.05). 3. The CBCT measurements tended to slightly underestimate by 0.2 mm. But, the systematic difference of CBCT measurements were clinically acceptable Therefore, CBCT measurement method can be used to measure the size of unerupted teeth in a sufficiently accurate way.

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* 2021년 이후 발행 논문의 참고문헌은 현재 구축 중입니다.

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