Impact of Clear Aligners on Gingivitis Incidence and Prevention Strategies in Adolescents and Adults: An Observational Study

Objective: This study aims to analyze the differences in gingivitis incidence among adolescents and adults using clear aligners for orthodontic correction and to evaluate the effectiveness of prevention strategies on orthodontic outcomes. Methods: This observational study included 120 patients undergoing clear aligner orthodontic treatment from June 2018 to September 2023. Participants were divided into an adolescent group (66 cases) and an adult group (54 cases), each further split into a study group and a control group. Routine periodontal treatment and personalized oral hygiene education were provided, and the incidence of gingivitis was evaluated six months post-treatment. Results: The incidence of gingivitis was significantly higher in the adolescent group compared to the adult group (P<0.05). Specifically, within the adolescent group, the study group exhibited a higher gingival index (GI) than the control group (P<0.05), while the difference in the adult group was not significant. Conclusion: Adolescents using clear aligners are more prone to gingivitis compared to adults. Personalized oral hygiene education significantly reduces gingivitis incidence, particularly in adolescents.