title: Effect of Time Lapse between Endodontic and Periodontal Therapies on the Healing of Concurrent Endodontic-Periodontal Lesions without Communication: A Prospective Randomized Clinical Trial.
abstract: BACKGROUND
  The aim of this prospective randomized clinical trial was to evaluate the effect of a time lapse between endodontic treatment and nonsurgical periodontal treatment on periodontal healing of concurrent endodontic-periodontal lesions without communication.
  
  
  METHODS
  Thirty-one patients were randomly divided into 2 groups: group 1: endodontic treatment and scaling and root planning (SRP) were performed simultaneously and group 2: SRP was performed 3 months after endodontic treatment. Both groups were followed for 3 and 6 months after SRP. Primary outcome variables were the probing depth, clinical attachment level, and periapical index score.
  
  
  RESULTS
  Both the groups showed a significant improvement in all the clinical parameters evaluated after the completion of endodontic and periodontal treatment (P < .05). No statistically significant difference in improvement was observed between the 2 groups at 3 and 6 months after SRP (P > .05). Periodontal healing responses were comparable in the 2 groups, with no apparent detriment resulting from simultaneous treatment. Improvements in periodontal parameters that were achieved in 6 months in group 2 were achieved only in 3 months in group 1 (P > .05).
  
  
  CONCLUSIONS
  Nonsurgical periodontal treatment may be performed simultaneously with endodontic treatment in the management of concurrent endodontic-periodontal lesions without communication, and an observation period after endodontic treatment may not be required.
authors: Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India.
authors: Shilpi
authors: S
authors: Gupta
authors: Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India. Electronic address: tewarisanjayrohtak@yahoo.co.in.
authors: Sanjay
authors: S
authors: Tewari
authors: Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India.
authors: Shikha
authors: S
authors: Tewari
authors: Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India.
authors: Shweta
authors: S
authors: Mittal
mesh_terms: D000328:Adult; D000368:Aged; D003131:Combined Modality Therapy; D003788:Dental Pulp Diseases / Q000628:therapy*; D012534:Dental Scaling; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010510:Periodontal Diseases / Q000628:therapy*; D010512:Periodontal Index; D010514:Periodontal Pocket; D011446:Prospective Studies; D016745:Root Planing; D013997:Time Factors
keywords: Endodontic treatment; periapical index; scaling and root planning