[Comparative evaluation of one-stage and multi-stages periodontal flaps in patients with localized aggressive periodontitis]

Microorganisms' transmission ability in the oral cavity, suggest the possibility of re-infection of treated sites by microorganisms which are still present in un-treated sites. Thus, the purpose of the present study is to evaluate the clinical results of treatment of aggressive periodontitis patients in one session and multiple stages. Twenty patients of localized aggressive periodontitis were divided in two unique groups. Test group's surgery was done within 72 h and control group's surgery in 4 sessions with one week intervals. Plaque Index [PI], Gingival Index [GI], Bleeding On Probing [BOP], Pocket Depth [PD], Clinical Attachment Level [CAL] parameters were recorded at baseline and 4 and 8 months after treatment. Collected data were analyzed with SPSS 9 software, Kolmogorov-Smirnov, Bonferroni, Student's T, Friedman, Wilcoxon, Mann-Whitney tests. The findings showed that both treatment modalities resulted in periodontal improvements, however, GI and BOP parameters after 8 month were better in test group. Analysis of data showed pocket depth reduction in single-rooted teeth in test group, in contrast to control group was better than baseline after 8 months, yet. In multi-rooted teeth pocket depth reduction in test group was also better and more stable than control group [P<0.05] and clinical attachment gain was better and more stable. Based on this clinical study it was shown that the pocket depth reduction and attachment level gain were better and more stable in multi-rooted teeth with single stage technique. Performed surgical procedures in single -rooted teeth resulted the same pocket depth reduction and attachment level gain in both groups

Clinical evaluation of root coverage by sub-epithelial connective tissue graft with and without odontoplasty in treatment of teeth with cervical abrasion

No clinical trial has been done in relation to successful coverage of gingival recessions with and without odontoplasty. This study was designed to evaluate the effects of odontoplasty with subepithelial connective tissue graft [SeCTG] on the outcome of root coverage on abraded teeth with gingival recessions, attachment level, height of keratinized gingival and teeth sensitivity. Thirty-six class I, and III Miller recessions were treated in 10 patients, using SeCTG with coronally positioned flap with [test group] and without [control group] odontoplasty. Clinical measurements probing depth, abrasion depth, height of recession [HR], width of recession [WR], height of keratinized gingival [KG], clinical attachment level [CAL], width of interdental papilla, bone level and vestibule depth were recorded at base line and 3 months after surgery. The changes in variables were evaluated by paired t test and Wilcoxon's sign ranked test. Probing depth before and after surgery was reduced 0.44 mm in the test group which was not statistically significant. However the difference was significant in the control group [P=0.007]. Differences between mean clinical attachment level [CAL], height of recession [HR], width of recession [WR] and height of keratinized gingival [KG] in test and control groups before and after surgery were statistically significant [P<0.0001]. Differences between the two groups in CAL, and HR were statistically significant [P=0.026, P=0.03]. Difference between mean two groups in KG before surgery was statistically significant [P=0.036]. However difference between two groups was not statistically significant. Difference between before and after surgery in vestibule depth was not statistically significant. Interdental papilla in test group had not any relation with mean root coverage, however in control group the relation was highly significant [P=0.001, r=0.75]. Bone level in mid facial in both groups had not significant relation with mean root coverage. Abrasion depth in test group had not significant relation with mean root coverage. However, in control group, had significant relation with mean root coverage [p=0.003, r =0.65]. SeCTG with coronally positioned flap is a predictable method for root coverage with shallow, moderate and deep recessions. Odontoplasty in abraded teeth in order to decrease avascular surfaces, irregularities and root convexity results in better clinical outcome to gain clinical attachment, root coverage and keratinized gingiva

effects of chlorhexidine mouthwash on dental plaque and gingival bleeding of fasting people

Dental plaque is the main etiological factor in periodontal diseases and there is no study on using chlorhexidine by fasting people. The purpose of this study was to evaluate the effects of using chlorhexidine mouthwash on dental plaque and gingival bleeding of fasting people. This experimental, controlled, cross-matched clinical trial study was implemented on thirty individuals [men and women] with the mean age of 40 +/- 1 year who attended Periodontic Department of Shaheed Beheshti University of Medical Sciences, and were divided randomly into two groups. Chlorhexidine mouthwash was used in the test group after dawn meal time [sahar] and breaking fasting time [eftar]. The control group did not use any mouthwash. The plaque and gingival indices were measured in three stages; the first on 2-3 days before the beginning of Holy month of Ramadan, the second after the first ten days, and the third following 4 days of washout period. After the second ten days of Ramadan the test and control groups were replaced by each other. The findings were analyzed by T test between the two groups and by paired T test in each group. The amount of dental plaque and gingival bleeding indices decreased significantly in individuals using chlorhexidine mouthwash [P<0.0001]. The amount of dental plaque and gingival bleeding showed a statistically significant difference between the two groups with a better result for test group [P<0.001]. Chlorhexidine mouthwash demonstrated positive effects on decreasing the amount of dental plaque and gingival bleeding in fasting people