Plaque disclosing agent as a plaque control guide for oral hygiene in chronic periodontitis based on guided biofilm therapy: A retrospective cohort study.

We assessed the effectiveness of plaque disclosing agents as a visual aid for biofilm removal during professional oral hygiene instruction. A total of 220 patients with chronic periodontitis were enrolled in the study and divided into a control group (CG; traditional interventions) and an observation group (OG; guided biofilm therapy concepts applied). Plaque index (PI), bleeding on probing (BOP), and pocket depth (PD) were compared between the 2 groups. Self-care efficacy scale scores were assessed and compared, and oral hygiene behaviors were evaluated. After a 3-month intervention, the PI, BOP, and PD in OG reduced compared with those in CG. The total scores of the self-care efficacy scale in OG were higher than those in CG. The application of guided biofilm therapy concepts in the treatment and maintenance of patients with chronic periodontitis proves effective in reducing PI, BOP, and PD levels, enhancing patients' oral health management abilities, and ensuring sustained therapeutic outcomes.