Authors : M. Vahid Golpaygani , K. Mehrdad , A. Mehrdad and G. Ansari
Abstract: Structurally defected teeth are not only weak but also provide favorable areas for colonization of bacteria. This subsequently will increase the incidence of dental caries in such dentition. Enamel hypoplaisa is considered one of many caries inducing factors. The aim of this investigation was to evaluate the frequency of dental caries among hypoplastic teeth in a group of 6-9 years old Iranian children. One hunder and one children of 6-9 years of age from Paedodontic Department of Shahid Beheshit Dental School were randomly selected. All the primary and permanent teeth of these children (2266 teeth) were examined for the Presence of enamel hypoplasia and dental caries. Overall, 1671 of teeth (73.9%) were primary and 589 (26.1%) were permanent. Of the permanent teeth, 315 were first permanent molars. Pearson, Mantel Haenszel and Fisher Exact test were used to analyze the data. A significant relationship was found between enamel hypoplasia and dental caries both in permanent (p<0.0001) and primary teeth (p = 0.038). The odds ratio was 7.362 for all the permanents, 4.47 for the first permanent molar and 1.887 for the primary teeth. Hypoplastic teeth are more likely to develop caries than non-hypoplastic teeth. Hypoplastic primary teeth are 2 times and the 1st permanent molars are 4 times more susceptible to dental caries than non-hypoplastic ones.
M. Vahid Golpaygani , K. Mehrdad , A. Mehrdad and G. Ansari , 2009. An Evaluation of the Rate of Dental Caries among Hypoplastic and Normal Teeth: A Case Control Study. Research Journal of Biological Sciences, 4: 537-541.