Specifically, InVivo Section measurements were 0.3 mm (95% CI, −0.4 to −0.2) less than the measurements with calipers, InVivo Volume Render measurements were 0.5 mm less (95% CI, −0.6 to −0.4) than those with calipers, and CBWorks Volume Render measurements were 0.4 mm less (95% CI, −0.4 to −0.3) than those with calipers. ResultsĪll 3 of the new methods had mean measurements that were statistically significantly less ( P <0.0001) than the physical method, adjusting for investigator and tooth effects. These measurements were then compared with the MDD physically measured by digital calipers before the teeth were embedded and scanned. Repeated MDD measurements of each sample were made by using 3 CBCT viewing methods: InVivo Section, InVivo Volume Render (both Anatomage), and CBWorks Volume Render (version 3.0, CyberMed). Models of unerupted teeth (n = 25), created by embedding 25 tooth samples into a polydimethylsiloxane polymer with a similar density to tissues surrounding teeth, were scanned and measured by 2 investigators. MethodsĬBCT data were collected on the CB MercuRay (Hitachi Medical Corporation, Tokyo, Japan). Our secondary objective was to determine the accuracy and reproducibility of 3 viewing methods by using 2 CBCT software programs, InVivoDental (version 4.0 Anatomage, San Jose, Calif) and CBWorks (version 3.0, CyberMed, Seoul, Korea) in measuring the MDD of teeth in models simulating unerupted teeth. Our objective was to test the accuracy and reproducibility of cone-beam computed tomography (CBCT) in predicting the MDD of unerupted teeth. An accurate prediction of the mesiodistal diameter (MDD) of the erupting permanent teeth is essential in orthodontic diagnosis and treatment planning during the mixed dentition period.

Invivo software dental