COMPARATIVE ASSESSMENT OF DIFFERENT ORTHODONTHIC UPPER JAW EXTENSIONS IN CHILDREN WITH A COMPLETE BITE

2021-03-26
Journal: Stomatologiya
Issue: No. 2(83) (2021)
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Nigmatov, R., Kadyrov, Z., Nigmatova, I., Rakhmatullaeva, N., & Davronova, R. (2021). COMPARATIVE ASSESSMENT OF DIFFERENT ORTHODONTHIC UPPER JAW EXTENSIONS IN CHILDREN WITH A COMPLETE BITE. Stomatologiya, (2(83), 40–44. Retrieved from https://uzda.uz/index.php/stomatologiya/article/view/177

Keywords:

children / changeable bite / narrowing of the upper jaw / orthodontic retractors

Abstract

Comparative evaluation of various orthodontic maxillary expanders in children nith mixed dentition. Material and methods: Under observation were 26 children aged 12 to 14 years with a changeable bite with a narrowing of the upper jaw and speech impairment. In 13 (50%) children of the 1st group, treatment was carried out using a dental expander for the upper jaw (DEMP), supported by 4 strips placed on the first premolars of the upper jaw and the first permanent molars. Thirteen (50%) patients of the 2nd group received treatment with a bone expander for bone expansion of the upper jaw (EJB). which was fixed directly on the palatine bone usmg 4 mimscrews. Results: In the EHCR group, a statistically significant decrease was observed in the external buccopalatal angle of inclination of the first maxillary premolars and the first permanent molars. In the ZEVC group, a statistically significant decrease was found only for the external buccopalatinal tilt: the angle of the right and left first premolars. Conclusions: Further research with a large sample size is needed to test the long-term stability of the achieved expansion by both devices.

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