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Influence of Adjacent Teeth Absence or Extraction on the Outcome of Non-Surgical Periodontal Therapy

1
Division of Periodontics, Department of Dentistry, National Taiwan University Hospital, Taipei 100, Taiwan
2
Department of Dentistry, School of Dentistry, National Taiwan University, Taipei 100, Taiwan
3
Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei 100, Taiwan
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2019, 16(22), 4344; https://doi.org/10.3390/ijerph16224344
Received: 16 September 2019 / Revised: 28 October 2019 / Accepted: 5 November 2019 / Published: 7 November 2019
Background: Extraction of periodontally compromised or strategically non-important teeth is often an integral part of non-surgical periodontal treatment (NSPT). This study evaluated the association between the status of adjacent teeth and the outcome of NSPT on molars. Methods: Charting data of patients with generalized chronic periodontitis receiving NSPT in 2012–2014 were included. The association between initial clinical parameters and significant clinical improvement, including the reductions of probing pocket depth (PPD) and clinical attachment loss (CAL), in molar teeth with severe periodontitis after NSPT was assessed by a generalized linear model and logistic regression. Results: ≥7 mm PPD and <2 mm gingival recession (REC) at the tooth level, and ≥7 mm PPD, ≥7 mm CAL and <2 mm REC at the site level, were associated with significant clinical improvement. Absence or extraction of an adjacent tooth achieved an additional 0.22–0.23 mm and 0.60–0.83 mm clinical improvement. Among the interproximal sites, ≥7 mm PPD, <2 mm REC, ≥7 mm CAL, <Degree II furcation involvement, and absence of an adjacent tooth were associated with significant clinical improvement. Conclusion: Absence or extraction of teeth during NSPT significantly improves the PPD and CAL of the adjacent periodontal sites of molars. View Full-Text
Keywords: tooth extraction; periodontitis; periodontal pocket; root planing; molar tooth extraction; periodontitis; periodontal pocket; root planing; molar
MDPI and ACS Style

Lin, J.-H.; Tu, C.-C.; Chen, Y.-W.; Wang, C.-Y.; Liu, C.-M.; Kuo, M. .-P.; Chang, P.-C. Influence of Adjacent Teeth Absence or Extraction on the Outcome of Non-Surgical Periodontal Therapy. Int. J. Environ. Res. Public Health 2019, 16, 4344.

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