Work

Generational shift for clinical application of the QLF system for evaluating tooth wear

Year: 2024

Type: article

Abstract: • QLF-D and Qraycam Pro both accurately detect tooth wear with ΔF wear values. • No significant ΔF wear differences between QLF-D and Qraycam Pro for TWI scores 0–2. • Both devices show high accuracy (AUROC 0.95) in detecting dentin exposure. • QLF-D's research-grade setup contrasts with Qraycam Pro's clinical convenience. No study has quantitatively assessed tooth wear using a clinical quantitative light-induced fluorescence (QLF) system. This study aimed to compare fluorescence parameters (ΔF wear ) between the research QLF system (QLF-D) and clinical QLF system (Qraycam Pro) and evaluate the validity of both systems in detecting dentin exposure from tooth wear. Thirty-five human molars and premolars were collected. Two blinded examiners conducted evaluations. Images from QLF-D and Qraycam Pro were captured and analyzed by the first examiner to calculate ΔF wear , representing the maximum fluorescence intensity for occlusal wear. The stage of tooth wear was determined by the second examiner using the tooth wear index (TWI). The area of interest (AOI) was determined as the cusp without defects, such as caries or fractures. Only areas mutually agreed by both examiners were included in analysis. The Kruskal-Wallis test was conducted to assess differences in ΔF wear between two devices. ROC analysis evaluated the validity of both systems in determining dentin exposure using AUROC. Thirty-eight AOIs were analyzed. ΔF wear significantly increased with higher TWI scores. Median ΔF wear for TWI scores (0, 1, and 2) were 6.9 %, 10.3 %, and 24.8 %, respectively, for QLF-D, and 5.7 %, 7.7 %, and 23.9 %, respectively, for Qraycam Pro. No significant differences in ΔF wear were observed between QLF-D and Qraycam Pro for any TWI score. The AUROC for both systems was 0.95. ΔF wear was comparable between QLF-D and Qraycam Pro and demonstrated high validity in detecting dentin exposure. These findings support the clinical application of the QLF for quantitative tooth wear assessment.

Source: Photodiagnosis and Photodynamic Therapy

DOI: 10.1016/j.pdpdt.2024.104413

Authors: Sang-Kyeom Kim, Eun-Song Lee, Baek-Il Kim

Institutions: Yonsei University, Yonsei University Health System, Yonsei University College of Dentistry, Yonsei University Dental Hospital

Language: English

Topic: Dental Erosion and Treatment

Subfield: Orthodontics

Field: Dentistry

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $2,450