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KMID : 1036420230160020149
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대한치의학회 영문학회지
2023 Volume.16 No. 2 p.149 ~ p.155
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Influence of Band and Loop Type Space Maintainer on Intraoral Scanning Accuracy of an Adjacent Tooth
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Ye Ju-Ri
Chae Yong-Kwon
Lee Ko-Eun
Lee Hyo-Seol
Choi Sung-Chul
Nam Ok-Hyung
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Abstract
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Purpose: The purpose of this study was to evaluate whether the presence of a space maintainer affects the accuracy of an intraoral scanner.
Materials and Methods: The maxillary primary first molar typodont tooth was removed from the primary dentition typodont model and a band and loop type space maintainer was delivered. After the model was connected to a dental phantom, intraoral scan was performed using TRIOS 4 (3Shape A/S, Copenhagen, Denmark). The scan was repeated with the same technique without the space maintainer. Each scan was performed 10 times. All scan files into a GOM inspect 2018 software and evaluated the accuracy. The accuracy was evaluated on trueness and precision, and calculated using the root mean square value.
Result: When there was a space maintainer in the oral cavity, the trueness value was 0.10±0.02 mm and the precision value was 0.15±0.03 mm. In the absence of the space maintainer, the trueness value was 0.12±0.03 mm and the precision value was 0.16±0.04 mm. There were no significant differences depending on the presence of a space maintainer (P>0.05).
Conclusion: Within the limits of this study, the accuracy of the intraoral scanner was not influenced by the presence of space maintainer.
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KEYWORD
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Children, Dimensional measurement accuracy, Space maintenance
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