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. 2019 Apr-Jun;9(2):183-186.
doi: 10.1016/j.jobcr.2018.06.005. Epub 2018 Jun 23.

Evaluation of lower anterior dental changes in patients treated with self-ligating brackets

Wendel M M Shibasaki  1 , Lucas Hian da Silva  1 , Acácio Fuziy  1 , Tarcila Triviño  1 , André L F Costa  1 , Ana C R Nahás-Scocate  1
Affiliations

Evaluation of lower anterior dental changes in patients treated with self-ligating brackets

Wendel M M Shibasaki et al. J Oral Biol Craniofac Res. 2019 Apr-Jun.

Abstract

The aim of this study was to evaluate and compare changes in linear distance and inclination of lower incisors and canines and intercanine distance after a 30 months orthodontic treatment with self-ligating appliances. Seven patients were treated orthodontically with a Roth prescription passive self-ligating bracket. To perform the measurements and comparisons, CBCT scans were taken before the start of the orthodontic treatment (T1) and after a period of 30 months treatment (T2). The following measurements were performed: (1) the lower incisors and canines inclination in relation to the mandibular plane, (2) intercanine linear distance in millimeters and (3) linear distance in millimeters of the incisal and apical part of lower anterior teeth to a plane (POGM) passing through pogonion point and perpendicular to the mandibular plane. No significant difference were observed between T1 and T2 for canine inclination (p = 0.835), incisors inclination (p = 0.149), canine incisal distance to POGM (p = 0.423) and incisors incisal distance to POGM (p = 0.966), however canine apical distance (p = 0.049) and incisors apical distance (p = 0.002) to POGM was lower at T1 than at T2. The intercanine distance was significantly lower (p = 0.022) at T1 when compared to T2. The use of passive self-ligating brackets in orthodontic treatment to solve 4 mm tooth crowding were able to produce dental arch expansion by bodily tooth movement.

Keywords: Orthodontic brackets; Orthodontics; Tooth movement.

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Figures

Fig. 1
Fig. 1
Markers, lines and planes used to define tooth inclination in relation to mandibular plane and distance to POGM plane.
See this image and copyright information in PMC

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