To study the effect of comprehensive treatment on mandibular anterior teeth with combined periodontal-endodontic lesions, and provide evidence for clinical treatment.

A total of 31 mandibular anterior teeth with severe periodontitis combined endodontic lesions from January 2017 to February 2018 in Guangzhou Haizhu District Stomatological Hospital were randomly selected. The comprehensive treatment (supragingival scaling, subgingival scaling, rootplanning and root canal treatment) of disease including splinting were performed. The calculus index (CI) , sulcus bleeding index (SBI) , probing depth (PD) , and loss of attachment level (AL) were recorded at baseline, 3 months, 6 months, and 12 months after treatment. ANOVA of single factor repeated measurement data were used to compare the differences before and after treatment and evaluate the clinical efficacy (Test level α = 0.05) .

Compared the baseline with 3, 6, and 12 months after treatment, the CI, SBI, PD, and AL values of the teeth were significantly decreased, and the differences were statistically significant (P<0.001) . PD and AL values at 6 months continued to decrease compared with 3 months, PD (F = 112.51, P<0.001) , AL (F = 117.64, P<0.001) , and at 12 months, which were still lower than at 6 months, but the differences were not statistically significant: PD (F = 0.04, P = 0.815) , AL (F = 0.09, P = 0.786) . In 31 cases, the effective rate of combined periodontal and endodontic treatment was 96.8%.

The comprehensive treatment is significantly effective for the mandibular anterior teeth with combined periodontal-endodontic lesions.