Clinical Evaluation of Periodontal Parameters in Correct Marginal Dental Restorations

Marginal restorations are appropriate places for plaque accumulation and bacteria reproduction causing periodontal disease . The present study was conducted to compare the periodontal status in patients with correct marginal restorations and their controls referred to department of Oral Medicine and Operative Dentistry of Mashhad Dental School in 2009. Fifty patients with one or more marginal restorations as well as their controls were studied in a cross-sectional method. Gingival bleeding and plaque indices were evaluated in both groups for the purpose. Periodontal probes were used for measuring plaque, bleeding index and probing depth and gingival index was examined by observation. 50 percent of cases had plaque index of 0 as the rate was 60 percent in control samples. Considering gingival index, the percentage of patients with 0 gingival index was 58 and 74 in case and control groups respectively. Bleeding index of 0 was reported to be 38 and 72 per cent in case and control groups. Probing depth in case group was more than control. Statistical analysis showed significant difference between the two groups considering four measured ariables (P < 0.05). According to the results of this study, even the correct marginal restoration may have effect on periodontal status.