title: Effectiveness of a controlled release chlorhexidine chip (PerioCol™-CG) as an adjunctive to scaling and root planing when compared to scaling and root planing alone in the treatment of chronic periodontitis: A comparative study.
abstract: OBJECTIVE
  The aim of this study is to evaluate the effectiveness of a controlled-release chlorhexidine chip as an adjunctive therapy to scaling and root planing when compared with scaling and root planing alone in the treatment of chronic periodontitis.
  
  
  METHODS
  20 patients with a total number of 40 posterior sites were selected. These sites were divided into two groups in a split mouth design,: Group A (control site) had 20 sites treated with scaling and root planing alone and Group B (test site) had 20 sites treated with scaling and root planing and PerioCol™-CG. The clinical parameters (Plaque index, bleeding on probing, probing pocket depth, clinical attachment level) were recorded at baseline, 90(th) and 180(th) day for both the groups.
  
  
  RESULTS
  When both groups were compared the change in Plaque index was significantly higher in Group B when compared to Group A on the 90(th) day and 180(th) day. However, there was no statistically significant difference in the mean percentage of gingival bleeding sites between the two groups on the 90(th) day, though Group B showed a statistically higher reduction in the mean percentage of gingival bleeding sites at the end of 180(th) day. There was no statistically significant difference in probing pocket depth between the two groups on both 90(th) and 180(th) day. Gain in clinical attachment level was significantly higher in Group B when compared to Group A on the 90(th) and 180(th) day.
  
  
  CONCLUSIONS
  From the results observed in this study, it can be concluded that the adjunctive use of PerioCol™-CG was safe and provided significant improvement in both Plaque index and gingival bleeding index. It was also more favorable than scaling and root planing alone for gain in clinical attachment level.
authors.affiliation: Department of Periodontology and Imlantology, Meenakshi Ammal Dental College, Maduravoyal, Chennai, India.
authors.forename: Kameswari
authors.initials: K
authors.lastname: Kondreddy
authors.forename: N
authors.initials: N
authors.lastname: Ambalavanan
authors.forename: T
authors.initials: T
authors.lastname: Ramakrishna
authors.forename: R Saravana
authors.initials: RS
authors.lastname: Kumar
keywords: Chronic periodontitis; chlorhexidine; probing pocket depth and clinical attachment level; scaling and root planing