Reliability study in the measurement of the cusp inclination angle of a chairside digital model

doi:10.7518/hxkq.2018.01.011

Abstract

Abstract:

Objective This study aims to evaluate the reliability of the software Picpick in the measurement of the cusp inclination angle of a digital model. Methods Twenty-one trimmed models were used as experimental objects. The chair-side digital impression was then used for the acquisition of 3D digital models, and the software Picpick was employed for the measurement of the cusp inclination of these models. The measurements were repeated three times, and the results were compared with a gold standard, which was a manually measured experimental model cusp angle. The intraclass correlation coefficient (ICC) was calculated. Results The paired t test value of the two measurement methods was 0.91. The ICCs be-tween the two measurement methods and three repeated measurements were greater than 0.9. The digital model achieved a smaller coefficient of variation (9.9%). Conclusion The software Picpick is reliable in measuring the cusp inclination of a digital model.

Key words: chairside digital impression, computer-aided design and computer-aided manufacturing, cusp inclination angle, reliability, intraclass correlation coefficient

CLC Number:

R783

Xinggang Liu, Xiaoxian Chen. Reliability study in the measurement of the cusp inclination angle of a chairside digital model[J]. West China Journal of Stomatology, 2018, 36(1): 56-59.

Figures/Tables 3

References 17

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