title: The influence of stress and anxiety on the response of non-surgical periodontal treatment.
abstract: OBJECTIVE
  The aim of this study was to evaluate the influence of stress and anxiety on the response to non-surgical periodontal treatment (NPT) in patients with chronic periodontitis.
  
  
  METHODS
  Sixty-six patients (mean age 46.1 +/- 8 years) were assigned to three groups: control group, probing pocket depth (PPD) <or=4 mm, n=20; T1, at least four sites with PPD >or=4 and <or=6 mm, n=26; and T2, at least four sites with PPD >6 mm, n=20. Stress, state anxiety (SA) and trait anxiety (TA) and plaque index (PI), gingival index, PPD and clinical attachment level (CAL) were recorded at baseline and 3 months after NPT.
  
  
  RESULTS
  TA scores were different among groups at baseline and after NPT. TA was related to periodontitis at baseline and after NPT. PI was associated with the SA at baseline. The reduction of frequency of CAL >6 mm was correlated with TA after adjusting for confounders. Stressed subjects did not show reduction of frequency of PPD >6 mm (T1), CAL 4-6 mm and CAL >6 mm (T2).
  
  
  CONCLUSIONS
  The data suggest an influence of trait of anxiety and stress on the response to NPT.
authors.affiliation: Department of Dental Clinic/Periodontology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil. mario@ensp.fiocruz.br
authors.forename: M
authors.initials: M
authors.lastname: Vettore
authors.forename: R S
authors.initials: RS
authors.lastname: Quintanilha
authors.forename: A M
authors.initials: AM
authors.lastname: Monteiro da Silva
authors.forename: G A
authors.initials: GA
authors.lastname: Lamarca
authors.forename: A T T
authors.initials: AT
authors.lastname: Leão
mesh_terms: D001007:Anxiety / Q000150:complications* / Q000175:diagnosis; D002908:Chronic Disease; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017622:Periodontal Attachment Loss / Q000523:psychology / Q000628:therapy; D010514:Periodontal Pocket / Q000523:psychology / Q000628:therapy; D010518:Periodontitis / Q000523:psychology / Q000628:therapy*; D013312:Stress, Physiological / Q000150:complications* / Q000175:diagnosis; D016896:Treatment Outcome