Journal of Dental Medicine

The aim of this study was to evaluate the repair of hard and soft tissue using Osteo Gen and comparing with flap curettage in periodontal defects. 36 periodontal intraosseous defects in sixteen patients involved moderate to advanced periodontitis were randomly selected and allocated to two groups: test (22) and control groups (14). Slow resorption, excellent tissue compatibility, no exfoliation and root resorption were considered during healing. The average of pocket depth in test and control groups was 3.16 and 2.73 mm, respectively. After 6 months, the average of bone repair was 2.18 mm (68.97%) and 0.46 mm (16.84%) in test and control groups. Bone apposition was obtained in test group (0.09 mm) (2.84%) while bone loss observed in control group (0.32 mm)(l 1.72%). Initial pocket depths in test and control groups were 7.68mm and 6.61mm. After six months, re-entry surgery was performed and the measurement of new attachment was 3.45 mm (61.19%) and 2.81 mm (51.28%). Recession of the gingival margin was 1.22 mm (15.80%) and 0,58 mm (8.77%) for test and control groups,respectively. By considering these findings, using of Osteo Gen can be recommended compare with flap curettage in periodontal intraosseous defects.

Actinomyces species are normal residents of the mouth cavity, gastrointestinal tract and female genital tract. The genus consists of gram-positive bacteria, strictly anaerobic or microaerophilic. The bacteria are opportunists with a low virulence potential that cause actinomycosis only when the normal mucosal barriers are disrupted. The main purpose of this study was the isolation of Actinomyces strains and determining of their role in periodontal diseases. The present study was carried out on 100 patients with periodontal diseases referred to the Periodontic Department of Faculty of Dentistry. The sampling was done in 6 months with isolation of oral Actinomyces from microbial plaque and periodontal pocket. The samples were selected based on the following criteria: periodontal plaque with deep pocket (>3 mm), no antibiotic therapy for a period of at least two weeks, and lack of systemic diseases. One strain of Actinomyces viscosus and two strains of Actinomyces naeslundii were isolated from the patients with gingivitis and periodontitis. Of the 100 patients with gingivitis and periodontitis, aged between 18-57 years old, 46% were males and 54% were females. The peak incidence of the diseases (35%) was in the third age group (31-40) and the lowest incidence (10%) was in the first age group (<20). Forty patients (40%) complained of gingival disease and its bleeding with lower incidence of (42.5%) in female.

Background and Aims: The precision of periodontal pocket measurements with periodontal probe is related to different factors. Some of these are related to examiner. The purpose of this study was to compare the right-handed and left-handed dental students in the measurement of periodontal pocket depth (PPD).
Materials and Methods: Eight systemically healthy adult patients (mean age of 35 years) with 0.5-6 mm periodontal pocket depth and a minimum of 20 teeth were examined by 4 right-handed and 4 left-handed students of dentistry (mean age of 25 years). These students were trained for periodontal examination probe depth measurements with Williams probe. Measurements were inserted in SPSS software and analyzed with Iintraclass correlation coefficient (ICCS) and T-test.
Results: There was statistically significant difference in the measurement of PPD between right-handed and left-handed examiners in the whole mouth (P<0.05), but this difference (0.08 mm) was not clinically significant. The most difference was found in the posterior teeth of mandible at right quadrant (mean=0.2 mm). Analyses of each pair of same handed and different handed examiners with T-test and ICCS showed that these measurements were nearly similar and reproducible.
Conclusion: There was no clinically significant difference in measurement of PPD between right-handed and left-handed examiners.