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Background: The process of removing metallic orthodontic brackets creates difficulties which affect the enamel surface condition along with excessive temperature rise in the pulp. Traditional ethnomethodological debonding methods lead to enamel destruction yet the advent of diode lasers promises to decrease adverse side effects. Speakers evaluate the impact of using two different laser intensity settings during diode laser-assisted bracket debonding on enamel surface preservation andclarations of intrapulpal temperature changes.
Material And Methods: A test involved sixty human premolars bonded with metallic brackets by means of a standardized adhesive system that was then randomly distributed into three groups where each group consisted of twenty premolars (Group A - conventional debonding by pliers, Group B - laser debonding at 2.5 W, and Group C - laser debonding at 3.5 W). The research used thermocouple technology to monitor pulpal temperature changes while Scanning Electron Microscopy (SEM) together with modified Adhesive Remnant Index (ARI) evaluated the condition of enamel surfaces. A statistical Analysis was performed by using ANOVA and post hoc tests in which the p value was set below 0.05.
Results: The debonding technique by conventional means (Group A) generated a mean temperature elevation of 2.1 ± 0.5°C in the pulpal area while Group B with 2.5 W laser power and Group C with 3.5 W laser power led to temperature rises of 4.5 ± 0.8°C and 6.2 ± 1.1°C respectively. Quantitative evaluation through SEM revealed Group A had the highest rates of enamel damage whereas Group C registered the lowest amount of enamel modification. The ARI results confirmed that Group A experienced more adhesive residual on enamel surfaces whereas both Groups B and C maintained more adhesive material on their bracket bases during the debonding process.
Conclusions: Diode laser-assisted brackets debonding conducted at low and high intensity settings produced better enamel preservation results than standard debonding methods. The pulpal temperature generated at the 3.5 W setting exceeded other measurements which justifies careful use of this method. A diode laser at 2.5 W offers a suitable tradeoff between enamel protection and pulpal thermal safety. Diode laser, orthodontic debonding, enamel integrity, pulpal temperature, metallic brackets.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12225760 | PMC |
http://dx.doi.org/10.4317/jced.62738 | DOI Listing |
Cureus
July 2025
Department of Orthodontics, Adhiparasakthi Dental College and Hospital, Chennai, IND.
Introduction: Excessive intensity of light emitted from light-emitting diode (LED) curing units used during orthodontic bonding procedures can induce thermal changes within the pulp chamber, potentially leading to pulpal inflammation or damage. The degree of this thermal effect may vary based on the type and power output of the curing light used. This study aimed to determine the amount of heat generated by different LED curing lights during orthodontic bonding and to evaluate the associated histopathological changes in pulpal tissue.
View Article and Find Full Text PDFJ Conserv Dent Endod
July 2025
Reader, Department of Conservative Dentistry and Endodontics, AJ Institute of Dental Sciences, Mangalore, Karnataka, India.
Background: The activation of a bleaching agent by thermocatalytic technique which uses heat source as a catalyst agent in the decomposition of bleaching agent causes bleaching of tooth. Destructive effects to the pulp due to temperature rise during bleaching procedure have been described. An intrapulpal temperature increase of 5.
View Article and Find Full Text PDFInt J Numer Method Biomed Eng
July 2025
The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
Existing robot-assisted cracked tooth preparation systems often result in crack extension or even tooth fracture due to inappropriate parameter settings. In order to solve this problem, a thermal-mechanical coupling model was developed to optimize the grinding parameters for a cracked tooth preparation robot. The grinding force model, based on an empirical formula, was established and analyzed.
View Article and Find Full Text PDFJ Clin Exp Dent
June 2025
Assistant professor, SRM Kattankulathur Dental College and Hospital,SRMIST, Chennai.
Background: The process of removing metallic orthodontic brackets creates difficulties which affect the enamel surface condition along with excessive temperature rise in the pulp. Traditional ethnomethodological debonding methods lead to enamel destruction yet the advent of diode lasers promises to decrease adverse side effects. Speakers evaluate the impact of using two different laser intensity settings during diode laser-assisted bracket debonding on enamel surface preservation andclarations of intrapulpal temperature changes.
View Article and Find Full Text PDFJ Conserv Dent Endod
June 2025
Centre for Biomedical Engineering, Indian Institute of Technology, New Delhi, India.
Objective: Thermal pulp sensibility tests are critical, cost-effective tools for assessing pulp vitality and guiding disease prognosis. However, their accuracy and efficacy are often compromised by subjective patient responses and operator variability. This study evaluated operator-associated variability for the performance of hot and cold pulp sensibility tests using a custom-designed testing apparatus.
View Article and Find Full Text PDF