Periodontitis is a chronic infection in the supportive tissue of the teeth which eventually leads to tooth loss. Various grafting materials and barrier membranes have been used to repair periodontal intraosseous lesions. Chitosan is a derivative of chitin, a natural biopolymer, which is biologically safe, biodegradable, and nontoxic and has been applied in a variety of forms in dentistry. It also exerts bioactive properties such as wound healing, antimicrobial, tissue regeneration, and hemostatic activities. The aim of this study was to evaluate effects of chitosan on periodontal regeneration. Twenty chronic periodontitis patients were recruited. Following initial therapy, the patients were divided into four groups: group A, receiving chitosan gel (1% w/v); group B, receiving chitosan gel + demineralize bone matrix; group C: receiving chitosan gel + collagenous membrane; and group D, receiving flap only (control group). Clinical and radiographic measurements were recorded at baseline, day 90 (3rd month), and day 180 (6th month) after surgery. For clinical data, no significant differences were obtained among the treatment groups. However, radiographic data revealed that except control group, all the other groups showed statistically significant bone fills when compared with baseline indicating that chitosan gel alone or its combination with demineralize bone matrix/collagenous membrane is promising for periodontal regeneration.
Aim: The study was planned to assess the effect of a mouthrinse containing Chlorhexidine (CHX) and amine/stannous fluoride (AmF) on plaque accumulation, gingivitis and salivary fluoride levels in comparison with two mouthrinses containing either essential oils (EO) or cetylpyridinium chloride (CPC) with sodium fluoride (NaF) in a teenage group. Methodology: For this study 82 healthy teenage between 13 and 16 years were recruited for participation. The experimental gingivitis model consisted of a 2-weeks recruitment phase, followed by a 6-day rinsing period with one of the 4 mouthrinse formulations was used for the study. At the end of the pre-phase period and the rinsing period (Day-0/Day-6), gingival index (GI), plaque index (PI) and salivary fluoride levels were recorded. The statistical analyses were performed using Wilcoxon sign test and the dependent t test.
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