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The Effectiveness of Low-level Laser Therapy in Orthodontic Retention for Periodontal-compromised Patients

Periodontal Diseases Clinical Trial

Official title:
The Effectiveness of Low-level Laser Therapy as an Adjunct Strategy in Orthodontic Retention for Periodontal-compromised Patients

Clinical Trial Summary

The aim of the study is to evaluate the effects of low-level laser therapy (LLLT) on patients with chronic periodontitis during a post-orthodontic period for 12 months. Following aspects will be assessed: 1. Effects on tooth stability maintenance and bone remodeling. 2. Effects on periodontal inflammation status. 3. Effects on cervical dentin sensitivity and quality of life. The study design is a randomised controlled trail. To eliminate any bias, the investigator will initially hypothesis there is no significant difference in the aforementioned aspects between teeth retained with an adjunctive LLLT strategy and those retained in a conventional regimen.

Clinical Trial Description

The study design is a randomised split-mouth design based on the result of investigator's pilot study. Thirty-five non-smoking Ethnic Chinese patients (male and female, age: 25-65 years) with chronic periodontitis will be recruited. The teeth in experimental group will receive LLLT during orthodontic retention period for 12 months, while the teeth in the control (placebo) group will not receive laser therapy. Orthodontic occlusal indices will be measured to explore LLLT's role in maintaining tooth stability. The effects of LLLT on periodontal inflammation status will be evaluated by assessing clinical periodontal parameters and the levels of supra-gingival and sub-gingival bacteria. The effects of LLLT on bone remodelling will be explored by testing the biochemical biomarkers in gingival crevicular fluid (GCF). Cone-beam computed tomography will also be used to provide clinical evidence of periodontal status and bone remodelling. Possible effects of LLLT on patient's quality of life will be investigated via validated questionnaires, subjective assessment of tooth sensitivity, and objective measurement of bite force. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03765151
Study type Interventional
Source The University of Hong Kong
Contact
Status Completed
Phase N/A
Start date October 1, 2018
Completion date December 1, 2020
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