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Evaluation of tooth wear by estimating enamel thickness with quantitative light-induced fluorescence technology

机译：通过定量光诱导荧光技术估算牙釉质厚度来评估牙齿磨损

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摘要

Background: Various techniques have been suggested to quantitatively assess tooth wear; most have limited clinical application. The first aim of this in vitro study was to estimate the residual enamel thickness of teeth with various degrees of occlusal wear using quantitative light-induced fluorescence (QLF). The second aim was to identify relationships between the fluorescence parameters of QLF and the conventional tooth wear index (TWI) system.Methods: Sixty-nine extracted permanent premolars and molars with initial stages of tooth wear (TWI score 1a-2: enamel wear to dentin exposure) were used. Two blinded and trained examiners participated in evaluation procedures. Occlusal QLF-digital (QLF-D) images were acquired for selecting area of interest (AOI) and calculating fluorescence for occlusal tooth wear (Delta F-wear) of the AOI by the first examiner. Each specimen was crosssectioned in the buccal-lingual direction. Enamel thickness from images obtained by stereomicroscopy and TWI of each sample was determined by the second examiner. Spearman correlation was used to determine the relationship of Delta F-wear with enamel thickness and TWI. Delta F-wear values were compared between histological scores with the Mann-Whitney U test.Results: Seventy-six AOIs were analyzed. As enamel thickness decreased, Delta F-wear values significantly increased and strongly correlated with enamel thickness (Spearman rho = -0.825, P 0.001). There were significant differences in Delta F-wear values among TWI scores (P 0.001); Delta F-wear strongly correlated with TWI (Spearman rho = 0.753, P 0.001).Conclusions: Delta F-wear values, which denote fluorescence difference by using QLF, showed a strong correlation with residual enamel thickness and tooth wear severity.
机译：背景：已经提出了各种技术来定量评估牙齿的磨损；大多数具有有限的临床应用。这项体外研究的第一个目标是使用定量光诱导荧光（QLF）估算不同程度咬合磨损的牙齿残余牙釉质厚度。第二个目的是确定QLF的荧光参数与常规牙齿磨损指数（TWI）系统之间的关系。方法：提取69颗具有初期牙齿磨损的永久性前磨牙和磨牙（TWI评分1a-2：牙釉质磨损至牙本质暴露）。两名盲目且训练有素的审查员参加了评估程序。获取咬合QLF数字（QLF-D）图像以选择感兴趣区域（AOI）并由第一位检查员计算AOI的咬合牙齿磨损（ΔF磨损）的荧光。每个标本沿颊舌方向切开。由第二个检查者确定通过立体显微镜获得的图像的釉质厚度和每个样品的TWI。用Spearman相关性确定Delta F磨损与牙釉质厚度和TWI的关系。用Mann-Whitney U检验比较组织学评分之间的Delta F值。结果：分析了76个AOI。随着搪瓷厚度的减少，Delta F磨损值会显着增加，并与搪瓷厚度密切相关（Spearman rho = -0.825，P <0.001）。 TWI得分之间的Delta F-wear值存在显着差异（P <0.001）； Delta F磨损与TWI密切相关（Spearman rho = 0.753，P <0.001）。结论：Delta F磨损值表示使用QLF的荧光差异，与残余牙釉质厚度和牙齿磨损严重程度密切相关。

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  • 来源
    《Photodiagnosis and Photodynamic Therapy》 |2019年第3期|319-324|共6页
  • 作者

    Kim Sang-Kyeom; Park Seok-Woo; Lee Hyung-Suk; Lee Eun-Song; de Jong Elbert de Josselin; Kim Baek-Il;

  • 作者单位

    Yonsei Univ, Dept Prevent Dent & Publ Oral Hlth, BK21 PLUS Project, Coll Dent, 50-1 Yonsei Ro, Seoul 03722, South Korea;

    Yonsei Univ, Dept Prevent Dent & Publ Oral Hlth, BK21 PLUS Project, Coll Dent, 50-1 Yonsei Ro, Seoul 03722, South Korea;

    Yonsei Univ, Dept Prevent Dent & Publ Oral Hlth, BK21 PLUS Project, Coll Dent, 50-1 Yonsei Ro, Seoul 03722, South Korea;

    Yonsei Univ, Dept Prevent Dent & Publ Oral Hlth, BK21 PLUS Project, Coll Dent, 50-1 Yonsei Ro, Seoul 03722, South Korea;

    Yonsei Univ, Dept Prevent Dent & Publ Oral Hlth, BK21 PLUS Project, Coll Dent, 50-1 Yonsei Ro, Seoul 03722, South Korea|Univ Liverpool, Dept Hlth Serv Res, Liverpool, Merseyside, England|Inspektor Res Syst BV, Amsterdam, Netherlands;

    Yonsei Univ, Dept Prevent Dent & Publ Oral Hlth, BK21 PLUS Project, Coll Dent, 50-1 Yonsei Ro, Seoul 03722, South Korea;

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  • 正文语种 eng
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  • 关键词

    Tooth wear; Occlusal wear; Auto-fluorescence; Quantitative light-induced fluorescence; QLF;

    机译：牙齿磨损;职业磨损;自发荧光;定量光诱导荧光;QLF;

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