Evaluation of adherence of oral microorganisms to titanium mesh : An invitro study

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Author: 
Krishnan Swathi, Savita, A. M., Naik Archana, R., Varghese Ammu and Prerana, G. K.
Subject Area: 
Life Sciences
Abstract: 

Background: The ultimate goal of any periodontal therapy is the regeneration of lost periodontal tissues. Guided bone regeneration (GBR) is a regenerative procedure that uses barrier membranes to direct the growth of new bone. The superior mechanical properties of Titanium-mesh make it optimal for successful GBR. However many problems like early exposure and resultant microbial on growth on its surfaces leads to the failure of regenerative therapy. Aim: The aim of this study is to evaluate and compare the bacterial adherence of four strongly adhesive periopathogenic bacteria (Actinomyces viscosus, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Streptococcus mutans) to Titanium mesh and Type 1collagen membrane. Methods and Materials: Four tubes with each containing the test membrane and 3 ml of appropriate broth medium (inoculated with 0.5 ml bacterial suspension) were incubated for different time inervals (6, 12, 24, 48, 72 hours) and the bacterial adherence on the membrane was counted. Statistical analysis: The results were averaged (mean ± standard deviation) for each continuous parameter. Analysis of variance (ANOVA) and unpaired t test analysis were used. Results: The difference between all the bacterium for Titanium mesh and collagen membrane were statistically significant at 48 hours. Porphyromonas gingivalis showed statistically significant bacterial adherence difference at both 48 and 72hours and Actinomyces viscous, at 24 hours to Ti mesh. Conclusions: Oral microorganisms vary in their ability to adhere to biomaterial membranes. In comparison to collagen membrane, Ti mesh has significantly lower Actinomyces viscosus adherence at 24 hours and lower Porphyromonas gingivalis adherence at 48 and 72 hours.

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