Analysis of relationship between cracked tooth syndrome and occlusion using Q-ray and T-scan
10.4047/jkap.2021.59.3.271
- Author:
Do-Gwan AHN
1
;
Jin-Woo CHOI
;
Yuseong KIM
;
Se-Wook PYO
;
Hee-Kyung KIM
Author Information
1. Department of Prosthodontics, Institute of Oral Health Science, Ajou University School of Medicine, Suwon, Republic of Korea
- Publication Type:ORIGINAL ARTICLE
- From:The Journal of Korean Academy of Prosthodontics
2021;59(3):271-280
- CountryRepublic of Korea
- Language:English
-
Abstract:
Purpose:The aim of this study was to evaluate the relationship between the patient's occlusion and a cracked tooth by using T-scan occlusal analysis and a quantitative light-induced fluorescence (QLF) technology.
Materials and Methods:This study was carried out on 51 patients having cracked teeth between January, 2019 and December, 2020. The tooth crack was determined with a Q-ray pen and QLF parameters (ΔFmax and ΔRmax) were obtained by a Q-ray software. T-scan tests were conducted to all subjects and then, the occlusal force and disclosing time were analyzed. Mann-Whitney U test was performed to compare the occlusal force and disclosing time between cracked teeth groups and contra-lateral normal teeth groups (α = .05). Mann-Whitney U test was performed to compare ΔFmax and ΔRmax according to the results of cold/bite tests (α = .05). A Spearman correlation analysis was run to determine the relationship between ΔFmax or ΔRmax and occlusal force or disclosing time (α=.05).
Results:The mean occlusal force and disclosing time were significantly higher on cracked teeth than on normal teeth (P < .05). The ΔFmax or ΔRmax were not significantly different according to the results of cold/bite tests (P > .05). There was no correlation between ΔFmax or ΔRmax and occlusal force or disclosing time (P > .05).
Conclusion:There was a significant relationship between occlusion and cracked tooth syndrome. QLF has the potential to be a valuable tool for the diagnosis of tooth crack in clinical practice.
