8 However, researchers can only speculate about such possible differences.8 According to various studies,3,4,6,21 the so-called ��oldest�� tooth surface may be http://www.selleckchem.com/products/Y-27632.html at a disadvantage because it is more readily affected by caries progression up to a radiographically visible stage.8 Thus, the post-eruptive maturation of the enamel does not seem to be an advantage for preventing caries on approximal surfaces.8 Furthermore, an explanation of the difference of caries prevalence among two adjacent approximal tooth surfaces may be as follows. When a tooth erupts, the approximal surface of an already erupted adjacent tooth, which either has not been exposed to the oral environment or has been a self-cleansing surface, becomes a retention area. On this surface, a caries-promoting plaque may become established and then remain in the same area.
The surface of the erupting tooth, on the other hand, is not colonized on a fixed location by a caries-promoting plaque until this tooth has come into occlusion. The establishment of caries-inducing plaque may be promoted by temporary high acidity near the gingival margin of an erupting tooth.6,22 In the present study, it was found that molar teeth had many more caries than incisors, canines, or premolars in both sexes. Furthermore, approximal surfaces of incisors, canines and premolars showed higher caries rates than other sites in both men and women. Occlusal fissure sites in molars showed the highest caries rates in both sexes as well. The finding that more caries teeth were observed in women than in men is in agreement with findings of other studies.
12,23 Mansbridge24 reviewed several studies presenting data about the gender gap regarding caries, and most researchers attribute this difference to the fact that, in general, permanent teeth erupt earlier in women than in men. As they are exposed to the risk of caries for a longer period, it is logical to assume that women��s teeth would decay more than the teeth of their male counterparts of the same age. The study also found evidence that female patients continue to experience excessive caries, even after adjustments for prior eruptions of permanent teeth. The author of this study also evaluated biological and behavioral differences between women and men in order to explain this observation.12,24 Many factors affect the prevalence of caries on teeth surfaces in both sexes, and these include education, income, lifestyle, etc.
Therefore, further investigation is necessary to explain these factors. The present study showed that age does not affect caries prevalence in teeth surfaces. Approximal surfaces of incisors, canines and premolars had the highest caries rates in all age groups, except for patients over the age of 65. On the other hand, occlusal surfaces of molars showed Dacomitinib the highest caries rate. In addition, it was observed that molar teeth are more prone to caries than incisors, canines, or premolars in all age groups.