title: Intentional passive eruption combined with scaling and root planing of teeth with moderate chronic periodontitis and traumatic occlusion.
abstract: OBJECTIVE
  The aim of this clinical trial was to explore the impact of intentional passive eruption (IPE) using occlusal reduction on the periodontal parameters of teeth with moderate chronic periodontitis and traumatic occlusion.
  
  
  METHODS
  This study was performed on 40 teeth from 16 subjects. At baseline, 4 weeks after initial periodontal treatment, and 6 months after IPE, clinical and radiographic examinations were performed. The 20 teeth in the test group underwent IPE using occlusal reduction, whereas the 20 control teeth did not undergone occlusal reduction.
  
  
  RESULTS
  All the periodontal parameters were improved by the initial periodontal treatment. The teeth in the test group showed a significantly greater decrease in pocket depth, tooth mobility, and marginal bone loss than did the control group (P<0.05), but there were no significant changes in the attachment level. Significantly greater improvements in all the parameters were observed in the test group after 6 months of IPE compared to 4 weeks after the initial periodontal treatment (P<0.05).
  
  
  CONCLUSIONS
  Within the limits of this study, performing initial periodontal therapy combined with IPE using occlusal reduction was shown to be very simple and effective. Moreover, IPE would be helpful in improving periodontal parameters.
authors.affiliation: Department of Periodontology, Pusan National University School of Dentistry, Yangsan, Korea.
authors.forename: Ji-Young
authors.initials: JY
authors.lastname: Joo
authors.affiliation: Department of Periodontology, Pusan National University School of Dentistry, Yangsan, Korea.
authors.forename: Eun-Young
authors.initials: EY
authors.lastname: Kwon
authors.affiliation: Department of Periodontology, Pusan National University School of Dentistry, Yangsan, Korea.
authors.forename: Ju-Youn
authors.identifier: 0000-0002-0772-033X
authors.initials: JY
authors.lastname: Lee
keywords: Occlusal adjustment; Orthodontic extrusion; Periodontitis