Evaluation of tooth wear by estimating enamel thickness with quantitative light-induced fluorescence technology
| Autor: | Baek Il Kim, Eun Song Lee, Seok Woo Park, Elbert de Josselin de Jong, Sang Kyeom Kim, Hyungsuk Lee |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Molar
Adult Materials science 030303 biophysics Biophysics Dermatology Spearman's rank correlation coefficient Sensitivity and Specificity Severity of Illness Index Occlusal Wear 030207 dermatology & venereal diseases 03 medical and health sciences Young Adult 0302 clinical medicine stomatognathic system Dentin medicine Humans Pharmacology (medical) Bicuspid Dental Enamel Orthodontics 0303 health sciences Occlusal tooth wear Enamel paint Quantitative Light-Induced Fluorescence Middle Aged Tooth Attrition stomatognathic diseases medicine.anatomical_structure Oncology Tooth wear visual_art visual_art.visual_art_medium Light induced Tooth Wear |
| Zdroj: | Photodiagnosis and photodynamic therapy. 25 |
| ISSN: | 1873-1597 |
| Popis: | 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 (ΔFwear) of the AOI by the first examiner. Each specimen was cross-sectioned 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 ΔFwear with enamel thickness and TWI. ΔFwear values were compared between histological scores with the Mann-Whitney U test. Results Seventy-six AOIs were analyzed. As enamel thickness decreased, ΔFwear values significantly increased and strongly correlated with enamel thickness (Spearman rho = -0.825, P Conclusions ΔFwear values, which denote fluorescence difference by using QLF, showed a strong correlation with residual enamel thickness and tooth wear severity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect