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Article: Effects of smoking on healing response to non-surgical periodontal therapy: A multilevel modelling analysis

TitleEffects of smoking on healing response to non-surgical periodontal therapy: A multilevel modelling analysis
Authors
KeywordsModels
Periodontitis
Smoking
Statistical
Issue Date2009
PublisherBlackwell Munksgaard. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CPE
Citation
Journal Of Clinical Periodontology, 2009, v. 36 n. 3, p. 229-239 How to Cite?
AbstractWan CP, Leung WK, Wong MCM, Wong RMS, Wan P, Lo ECM, Corbet EF. Effects of smoking on healing response to non-surgical periodontal therapy: a multilevel modelling analysis. J Clin Periodontol 2009; 36: 229-239. doi: 10.1111/j.1600-051X.2008.01371.x. Abstract Aim: To investigate the factors predicting non-surgical periodontal treatment responses using multilevel multiple regression. Material and Methods: Forty men (mean 45.6 years) were recruited; 20 were smokers. A 12-month reduction in probing pocket depth (PPD) and gain in probing attachment level (PAL) of 5814 sites were analysed, with 594 being initially diseased sites (initial PPD≥5 mm). Results: Variance Component models showed that site-level variations contributed about 70-90% of the total variance. About a 10% reduction of the total variations of PPD reduction in initially diseased sites was achieved with the inclusion of the 10 predictors in the multilevel multiple regression. Multilevel multiple regression showed that three predictors, subject level: non-smokers; tooth-level: anterior teeth; and site level: sites without plaque at baseline, were significantly associated with a greater reduction in PPD in initially diseased sites over the 12-month study period (p<0.05). No consistent predictor was found for PAL gain. Conclusion: Multilevel analysis was applied on periodontal treatment response data. Smokers showed less favourable PPD reduction at deep sites after non-surgical periodontal therapy. © 2009 John Wiley & Sons A/S.
Persistent Identifierhttp://hdl.handle.net/10722/55450
ISSN
2015 Impact Factor: 3.915
2015 SCImago Journal Rankings: 1.848
ISI Accession Number ID
Funding AgencyGrant Number
Research Grants Council of the Hong Kong Special Administrative Region, ChinaHKU 7331/00M
Merck Sharp & Dohme (Asia) Limited26004077
Funding Information:

The authors declare that they have no conflict of interests. The work described in this paper was partially supported by grants from the Research Grants Council of the Hong Kong Special Administrative Region, China (HKU 7331/00M) and Merck Sharp & Dohme (Asia) Limited (26004077).

References
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DC FieldValueLanguage
dc.contributor.authorWan, CPen_HK
dc.contributor.authorLeung, WKen_HK
dc.contributor.authorWong, MCMen_HK
dc.contributor.authorWong, RMSen_HK
dc.contributor.authorWan, Pen_HK
dc.contributor.authorLo, ECMen_HK
dc.contributor.authorCorbet, EFen_HK
dc.date.accessioned2009-08-06T03:37:50Z-
dc.date.available2009-08-06T03:37:50Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of Clinical Periodontology, 2009, v. 36 n. 3, p. 229-239en_HK
dc.identifier.issn0303-6979en_HK
dc.identifier.urihttp://hdl.handle.net/10722/55450-
dc.description.abstractWan CP, Leung WK, Wong MCM, Wong RMS, Wan P, Lo ECM, Corbet EF. Effects of smoking on healing response to non-surgical periodontal therapy: a multilevel modelling analysis. J Clin Periodontol 2009; 36: 229-239. doi: 10.1111/j.1600-051X.2008.01371.x. Abstract Aim: To investigate the factors predicting non-surgical periodontal treatment responses using multilevel multiple regression. Material and Methods: Forty men (mean 45.6 years) were recruited; 20 were smokers. A 12-month reduction in probing pocket depth (PPD) and gain in probing attachment level (PAL) of 5814 sites were analysed, with 594 being initially diseased sites (initial PPD≥5 mm). Results: Variance Component models showed that site-level variations contributed about 70-90% of the total variance. About a 10% reduction of the total variations of PPD reduction in initially diseased sites was achieved with the inclusion of the 10 predictors in the multilevel multiple regression. Multilevel multiple regression showed that three predictors, subject level: non-smokers; tooth-level: anterior teeth; and site level: sites without plaque at baseline, were significantly associated with a greater reduction in PPD in initially diseased sites over the 12-month study period (p<0.05). No consistent predictor was found for PAL gain. Conclusion: Multilevel analysis was applied on periodontal treatment response data. Smokers showed less favourable PPD reduction at deep sites after non-surgical periodontal therapy. © 2009 John Wiley & Sons A/S.en_HK
dc.languageengen_HK
dc.publisherBlackwell Munksgaard. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CPEen_HK
dc.relation.ispartofJournal of Clinical Periodontologyen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsThe definitive version is available at www.blackwell-synergy.comen_HK
dc.subjectModelsen_HK
dc.subjectPeriodontitisen_HK
dc.subjectSmokingen_HK
dc.subjectStatisticalen_HK
dc.subject.meshPeriodontal Attachment Loss - pathology - therapyen_HK
dc.subject.meshPeriodontal Pocket - pathology - therapyen_HK
dc.subject.meshSmoking - adverse effectsen_HK
dc.subject.meshWound Healingen_HK
dc.subject.meshModels, Statisticalen_HK
dc.titleEffects of smoking on healing response to non-surgical periodontal therapy: A multilevel modelling analysisen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0303-6979&volume=36&issue=3&spage=229&epage=239&date=2009&atitle=Effects+of+smoking+on+healing+response+to+non-surgical+periodontal+therapy:+a+multilevel+modelling+analysisen_HK
dc.identifier.emailLeung, WK:ewkleung@hkucc.hku.hken_HK
dc.identifier.emailWong, MCM:mcmwong@hkucc.hku.hken_HK
dc.identifier.emailLo, ECM:hrdplcm@hkucc.hku.hken_HK
dc.identifier.emailCorbet, EF:efcorbet@hku.hken_HK
dc.identifier.authorityLeung, WK=rp00019en_HK
dc.identifier.authorityWong, MCM=rp00024en_HK
dc.identifier.authorityLo, ECM=rp00015en_HK
dc.identifier.authorityCorbet, EF=rp00005en_HK
dc.description.naturepostprinten_HK
dc.identifier.doi10.1111/j.1600-051X.2008.01371.xen_HK
dc.identifier.pmid19236535-
dc.identifier.scopuseid_2-s2.0-60249088082en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-60249088082&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume36en_HK
dc.identifier.issue3en_HK
dc.identifier.spage229en_HK
dc.identifier.epage239en_HK
dc.identifier.eissn1600-051X-
dc.identifier.isiWOS:000263301500007-
dc.publisher.placeDenmarken_HK
dc.relation.projectThe significance of post-treatment maintenance care and its rational prescription to patients with advanced periodontal disease in Hong Kong-
dc.identifier.scopusauthoridWan, CP=26029230400en_HK
dc.identifier.scopusauthoridLeung, WK=25224691800en_HK
dc.identifier.scopusauthoridWong, MCM=26029250900en_HK
dc.identifier.scopusauthoridWong, RMS=26029245400en_HK
dc.identifier.scopusauthoridWan, P=36852065800en_HK
dc.identifier.scopusauthoridLo, ECM=7101705982en_HK
dc.identifier.scopusauthoridCorbet, EF=35609873200en_HK
dc.identifier.citeulike4044449-

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