Variation tendencies in dental system of schoolchildren from Belarus

Olga, Tegako

Glasnik Antropološkog društva Jugoslavije

42

279

284

0351-1480

http://scindeks.ceon.rs/article.aspx?query=ISSID%26and%265386&page=0&sor...

2007-2021/11/05/11:54:09

Examination of dental system was a part of complex anthropological research in Belarusian children. The aim of the research was analysis of diseases of dental system and signs of reduction complex in dental system of schoolchildren to reveal variation tendencies between generations. A number of 500 schoolchildren of Minsk gymnasium № 23, schools № 133, 154 were examined. Research program included indices of caries involvement, oral hygiene, and malocclusion. Some ethnic odontological signs, such as the form of maxillary incisors and mandibular molars, tuberculum Carabelli, reduction of maxillary second incisors and hypoconus etc. were also examined. Reduction of some crown elements, teeth crowding, presence of diastemas where examined as a part of reduction complex. Examination showed 57,7-58,1% of 14-16 years old children had decayed teeth. 39% of examined children had malocclusion. Deep overbite was met in 17% of examined, distal bite in 9%. The other forms of malocclusion: mesial, cross and open bites were met in 5%. In comparison with the data of 2000 year by V.V. Gatalsky the frequency of malocclusion increased reliably (p<0,05). Crowding of teeth was met mostly of all the reduction complex signs. High statistic reliability (p<0,001) obtained comparing contemporary crowding frequency with the data, received in 70ies of XX cent, when crowding frequency in Minsk and Minsk region was 6,7%. The comparison of the results with the data received over 30 years ago and later gives possibility to see the tendencies in dental system variation. Evidently, crowding of teeth and different forms of malocclusion are to be more frequent in modern schoolchildren. This tendency is to be connected with the microevolution processes. .