oa South African Medical Journal - Hypoplasic teeth and dental caries



A group of Indian school children in Johannesburg were examined; 39 children out of 73 had hypolplastic teeth, ranging from a generalized hypoplasia extending over 24 teeth in one mouth to only one tooth in each of three mouths. The underlying aetiological factor in tbe formation of hypoplastic defects was found to be certain dietary deficiencies which occurred during the period of development and calcification of teeth. If these factors are further influenced by the exanthematous diseases common to childhood, there is a marked increase in the development of defective teeth. The hypoplasic teeth were found to be less susceptible to dental caries than normal teeth, and it is concluded from this study that there is no confirmation of the belief that a tooth showing hypoplasic defects is more susceptible to dental caries than any other.


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