To the top

Page Manager: Webmaster
Last update: 9/11/2012 3:13 PM

Tell a friend about this page
Print version

The furcation tunnel prep… - University of Gothenburg, Sweden Till startsida
To content Read more about how we use cookies on

The furcation tunnel preparation-A prospective 5-year follow-up study

Journal article
Authors Stefan G Rüdiger
Gunnar Dahlén
Claes-Göran Emilson
Published in Journal of Clinical Periodontology
Volume 46
Issue 6
Pages 659-668
ISSN 1600-051X
Publication year 2019
Published at Institute of Odontology
Institute of Odontology, Section 3
Pages 659-668
Language en
Keywords furcation tunnel, maintenance, periodontitis, risk indicators, tooth loss
Subject categories Dentistry


AIM: The aim of this study was to prospectively follow furcation tunnelled molars over a 5-year period of supportive periodontal therapy (SPT) and to identify factors associated with tooth loss. MATERIALS AND METHODS: A total of 32 patients with 42 furcation tunnelled molars (all class III prior tunnelling) were recruited upon commencing SPT following active periodontal therapy. Clinical registrations, bacterial samples and standardised radiographs were taken at baseline, year 1 (no radiographs), 2 and 5. Total viable counts, total streptococci, Streptococcus sanguinis and mutans streptococci (MS) were identified through culture, a panel of periodontal pathogens through the checkerboard technique. RESULTS: After 5 years, 29 molars (69%) were still in function. Of the lost molars, eight were upper and five lower molars. Recurrent periodontal disease and caries were reasons for tooth loss. A multilevel regression analysis showed that a smoking habit, bleeding on probing and the presence of MS in furcations were associated with an increased risk of tooth loss. CONCLUSIONS: Furcation tunnelled molars can in most cases be kept over a period of 5 years of SPT. A smoking habit, baseline bleeding scores and the presence of MS in the furcation were risk indicators for loss. © 2019 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.

Page Manager: Webmaster|Last update: 9/11/2012

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?