Article: Survival of molar teeth after resective periodontal therapy - A retrospective study

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TitleSurvival of molar teeth after resective periodontal therapy - A retrospective study
AuthorsLee, KL1
Corbet, EF1
Leung, WK1
Issue Date2012
PublisherBlackwell Munksgaard. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CPE
CitationJournal of Clinical Periodontology, 2012, v. 39 n. 9, p. 850-860 [How to Cite?]
DOI: http://dx.doi.org/10.1111/j.1600-051X.2012.01918.x
AbstractAIM: To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. MATERIAL AND METHODS: Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed. RESULTS: Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty-nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post-resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre-operative radiographic bone height of the remaining root(s) <50%; pre-treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment. CONCLUSION: There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre-operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.
ISSN0303-6979
2011 Impact Factor: 2.996
2011 SCImago Journal Rankings: 0.160
DOIhttp://dx.doi.org/10.1111/j.1600-051X.2012.01918.x
DC Field
Value
dc.contributor.authorLee, KL
dc.contributor.authorCorbet, EF
dc.contributor.authorLeung, WK
dc.date.accessioned2012-09-20T07:50:32Z
dc.date.available2012-09-20T07:50:32Z
dc.date.issued2012
dc.description.abstractAIM: To study outcomes of molar teeth after resective therapy performed with the intention to prolong the lifespan of teeth having one or more unsaveable roots, and without which tooth extraction would be inevitable. MATERIAL AND METHODS: Clinical records of 149 subjects who had undergone resective therapy were retrieved. Demography and dental history were recorded, and a recall examination was undertaken. Cox regression models were performed. RESULTS: Of the 149 resective therapies, 132 (88.6%) were performed for periodontal reasons. Eighty-nine (59.7%) teeth subjected to resective therapies had been extracted by the time of recall (mean 10 years post-resection). The median survival period was 74 months. Factors significantly associated with shorter survival duration of teeth subjected to resective therapy were: age at resective therapy; pre-operative radiographic bone height of the remaining root(s) <50%; pre-treatment mobility II or above and not being splinted to neighbouring teeth nor incorporated as a bridge abutment. CONCLUSION: There was increased risk of tooth loss with increasing age at resection, grade II mobility or above, and reduced pre-operative radiographic bone heights around roots to remain. Splinting of a resected tooth to neighbouring teeth appeared to confer a protective effect towards its survival.
dc.description.naturelink_to_subscribed_fulltext
dc.identifier.citationJournal of Clinical Periodontology, 2012, v. 39 n. 9, p. 850-860 [How to Cite?]
DOI: http://dx.doi.org/10.1111/j.1600-051X.2012.01918.x
dc.identifier.doihttp://dx.doi.org/10.1111/j.1600-051X.2012.01918.x
dc.identifier.epage860
dc.identifier.hkuros208546
dc.identifier.issn0303-6979
2011 Impact Factor: 2.996
2011 SCImago Journal Rankings: 0.160
dc.identifier.issue9
dc.identifier.openurl
dc.identifier.pmid22780229
dc.identifier.scopuseid_2-s2.0-84864696096
dc.identifier.spage850
dc.identifier.urihttp://hdl.handle.net/10722/163725
dc.identifier.volume39
dc.languageeng
dc.publisherBlackwell Munksgaard. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CPE
dc.relation.ispartofJournal of Clinical Periodontology
dc.rightsThe definitive version is available at www.blackwell-synergy.com
dc.titleSurvival of molar teeth after resective periodontal therapy - A retrospective study
dc.typeArticle
Author Affiliations
  1. Prince Philip Dental Hospital