Comparison Study of Periotest M and AnyCheck for Tooth Stability Measurement at the Incisal Edge of the Crown During Active Orthodontic Treatment

Published in : Journal of the dental association of thailand

Comparison Study of Periotest M and AnyCheck for Tooth Stability Measurement at the Incisal Edge of the Crown During Active Orthodontic Treatment: A Suggested Protocol Eduardo Yugo Suzuki1 , Boonsiva Suzuki1 1 Department of Orthodontics, Faculty of Dentistry, Bangkokthonburi University, Bangkok, Thailand

Abstract

Assessment of tooth stability (TS) during orthodontic treatment provides relevant information regarding the biomechanical behavior of the periodontium. Therefore, the purpose of the present study was 1) to compare the performance of the Periotest M and the AnyCheck in assessing tooth stability, 2) to compare the measurement of TS values obtained from the middle and the incisal edges, and 3) to develop a protocol of tooth stability measurement during the active phase of orthodontic treatment. Comparison of reliability of the Periotest M (Medizintechnik Gulden, Modautal, Germany) and the AnyCheck (IMT-100, DMS Co., LTD. Gangwon-do, Korea) was performed on 20 participants. Both devices are designed to provide objective measurements by assessing the damping capacity. Since the periotest values are displayed in PTV values and AnyCheck displayed in the iST scale (Implant Stability Test), a conversion equation to convert PTV into IST values was developed. A comparison of tooth stability values obtained from the middle and the incisal edge was performed to allow measurements during the active orthodontic treatment. Data was collected and analyzed statistically. Significant differences in TS measurements between the middle and incisal sites were observed. The Periotest produced the largest discrepancies (42.2%, ± 22.2%) between the middle and incisal readings. (p<0.001) Measurements of the posterior teeth were not possible with the Periotest due to the bulky head size. The AnyCheck produced reduced discrepancies between the middle and incisal readings (6.8%, SD 1.9%) with no significant changes in the posterior teeth. Relatively simple measurements were possible with AnyCheck. The correlation coefficient between the mean Periotest M and AnyCheck values was 0.870 (P<0.01). A strong correlation between the Periotest M and AnyCheck values was observed. The use of incisal edge for tooth stability measurements provided reliable and consistent tooth stability measurements. Moreover, it allows measurement during the active phase of orthodontic treatment. Keywords: AnyCheck, Orthodontic tooth movement, Periotest M, Tooth stability

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