Corbet, EF

Leung, WK

Wan, CP

Journal of Dental Research

HKU Scholars Hub

Title Healing response after non-surgical therapy on smokers withchronic periodontitisAuthor(s) Wan, CP; Leung, WK; Corbet, EFCitationThe 20th Annual Scientific Meeting of the InternationalAssociation for Dental Research (Southeast Asia Division) &16th Annual Scientific Meeting of the Southeast AsiaAssociation for Dental Education, Malacca, Malaysia, 1-4September 2005. In Journal of Dental Research, 2005, v. 84 SpIss BIssued Date 2005URL http://hdl.handle.net/10722/53907Rights Creative Commons: Attribution 3.0 Hong Kong LicenseHealing response after non-surgical therapy on smokers with chronic periodontitis C.P. WAN1, W.K. LEUNG1, and E.F. CORBET2, 1University of Hong Kong, Hong Kong SAR, China, 2University of Hong Kong, Hong Kong  Limited studies have been performed on the effect of smoking on healing response after non-surgical therapy in Chinese subjects. Objectives: To compare the 6-months healing response after non-surgical mechanical periodontal therapy in male Chinese periodontitis smokers with that in non-smokers. Methods: A total 33 patients (mean 45.5±9.0 years) with moderate to severe periodontitis were recruited. 17 patients were smokers (> 10 cigarettes/day) and 16 were non-smokers. All patients received non-surgical periodontal therapy provided by a group of experienced dental hygienists. Clinical parameters were assessed at six sites around each tooth, excluding third molars, at baseline, 2-, 4- and 6-months. Probing pocket depth (PPD) and clinical attachment level (CAL) were measured using the Florida Probe®. Gingival crevicular fluid (GCF) was measured at 4 sites of each patient at baseline, 2-, 4- and 6-months. Differences between groups and between time-points within groups were tested by Mann-Whitney U test and Wilcoxon signed rank test respectively. Results: Both Pl% and BOP% were significantly reduced in test (PI%: 77.5%-20.6%, p<0.0001; BOP%: 51.0%-21.9%, p<0.0001) and control groups (PI%: 84.8%-39.3%, p<0.0001; BOP%: 73.7%-46.1%, p<0.0001) during the course of this study. Although PPD was reduced in both smokers and non-smokers, the PPD reduction was significantly less in smokers (1.9±0.2 vs. 1.6±0.1, p=0.0001). The percentage of pockets > 5mm is significantly greater in smokers (2.3%±1.8vs 0.5%±0.9, p=0.004). Both groups showed significant CAL gain compared to baseline (p=0.0005) but there was no significant difference between groups. GCF volume was significantly reduced at 2-, 4- and 6-months compared to baseline (p<0.05) and the GCF volume reduction was significantly greater in non-smokers in 6-months (p<0.05). Conclusions: The present study indicates that the 6-months healing response after non-surgical periodontal therapy was generally less favorable in male Chinese smokers than non-smokers because smokers exhibit more pockets > 5mm and higher GCF volumes.   Periodontal Research - Therapy  The Preliminary Program for International Association for Dental Research - 20th Annual Scientific Meeting of the Southeast Asia Division and Southeast Asia Association for Dental Education - 16th Annual Scientific Meeting (Sept. 1-4, 2005)  

Healing response after non-surgical therapy on smokers with chronic periodontitis

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Healing response after non-surgical therapy on smokers with chronic periodontitis

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