Clinical performance of non‐surgical periodontal therapy in a large Chinese population with generalized aggressive periodontitis

Aim This study aimed to evaluate clinical performance of non‐surgical periodontal treatment ( NSPT ) and its influential factors in a large Chinese population with generalized aggressive periodontitis ( GA gP). Material and Methods Longitudinal periodontal examination data of 1,004 GA gP patients (numbers of patients with observation periods 6 weeks~, 3 months~, 6 months~, 1 year~, 3 years~ and >5 years were 203, 310, 193, 205, 70 and 23, respectively) were extracted from a hospital‐based electronic periodontal charting record system and analysed by multilevel analysis. Results Mean probing depth ( PD ) and attachment loss ( AL ) reductions at patient level were 1.17 mm and 1.07 mm, respectively. Multilevel analysis demonstrated PD reductions after maintenance were mainly influenced by frequency of supportive periodontal treatment ( FSPT ), gender, adjunctive systemic use of antibiotics, baseline mobility, tooth type and baseline PD and bleeding index reductions were mainly influenced by FSPT , adjunctive systemic use of antibiotics, baseline AL, baseline mobility, tooth type and baseline PD . Conclusion The clinical performance of NSPT on patients with GA gP was proved in the large Chinese population. Outcomes of NSPT were mainly influenced by FSPT , adjunctive systemic use of antibiotics, baseline mobility, tooth type and baseline PD .