Home Bratislava Medical Journal 2017 Bratislava Medical Journal Vol.118, No.11, p.662-668, 2017

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

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Bratislava Medical Journal Vol.118, No.11, p.662-668, 2017

Title: The influence of orthodontic non-extraction treatment on the change in the inclination and position of incisors in the Europoid race
Author: A. Koniarova, E. Sedlata Juraskova, M. Spidlen, D. Statelova
Abstract: AIM: To detect post-treatment change in the inclination and position of incisors in cases treated with orthodontic non- extraction therapy.
MATERIALS AND METHODS: The group consisted of 102 patients without extractions in lower and upper dental arch during orthodontic treatment. Cephalogram examination evaluated the position of the lower incisor to point A by Downs-pogonion line (–1 to APo) and inclination of the lower incisor to mandibular line (–1 to ML), position of the upper incisor to nasion-pogonion line (+1 to NPo), inclination of the upper incisor to nasion-sella line (+1 to NS) and the size of the inter-incisival angle between upper and central lower incisor (–1 to +1).
RESULTS: In 58 % of cases, the difference in post-treatment and pre-treatment changes in the position of the (–1 to Apo) was within ± 2 mm, which we considered stable. Statistically significantly higher values after treatment were in unstable rather than in stable cases with values (–1 to Apo), (–1 to ML), (+1 to NPo). Statistically significantly lower value after the treatment was measured in unstable cases rather than in stable cases with a value (–1 to +1). There was no statistically significantly different value in stable and unstable cases after treatment in values (+1 to NS).
CONCLUSION: The number of stable post-treatment cases was only 16 % higher than the number of unstable cases. With the increasing value (–1 to Apo), the value (–1 to ML) and (+1 to NPo) increased, the value (+1 to –1) decreased. The value (–1 to NS) not after treatment was not statistically significantly different in stable and unstable cases (Tab. 6, Fig. 4, Ref. 27).
Keywords: orthodontic non-extraction treatment, stable, unstable
Published online: 05-Dec-2017
Year: 2017, Volume: 118, Issue: 11 Page From: 662, Page To: 668
doi:10.4149/BLL_2017_126


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