Short- and long-term evaluation of mandibular dental arch dimensional changes in patients treated with a lip bumper during mixed dentition followed by fixed appliances.

The Angle Orthodontist
Gaetana RaucciLetizia Perillo

Abstract

To evaluate short- and long-term mandibular dental arch changes in patients treated with a lip bumper during the mixed dentition followed by fixed appliances, compared with a matched control sample. Dental casts and lateral cephalograms obtained from 31 consecutively treated patients before (T0) and after (T1) lip bumper, after fixed appliances (T2), and a minimum of 3 years after fixed appliances (T3) were analyzed. The control group was matched as closely as possible. Arch width, arch perimeter, arch length, and incisor proclination were evaluated. Repeated measures ANOVA was used to analyze changes in measurements over all four time points between treatment and control groups. Arch widths and crowding were always significantly different except at T2-T1. At T1-T0, only crowding decreased 3.2 mm while intercanine, interpremolar, and intermolar widths increased by 3.8, 3.3, and 3.9 mm, respectively. Changes at T3-T2 showed a significant decrease of 2.1 mm for crowding and an increase of 3.5, 2.9, 2.7, and 0.8 mm for intercanine, interpremolar, and intermolar widths and arch perimeter, respectively. Finally, at T3-T0, the reduction in crowding of 5.03 mm was significant and clinically important in the treated group. The differen...Continue Reading

Associated Clinical Trials

References

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Oct 7, 2014·The Angle Orthodontist·Gaetana RaucciLetizia Perillo
Dec 31, 2014·Progress in Orthodontics·Guilherme JansonLeonardo T Camardella

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Citations

Aug 28, 2020·Case Reports in Dentistry·Vincenzo GrassiaLetizia Perillo
May 2, 2020·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Tao ShenJie Ke
Jan 21, 2021·Journal of Functional Morphology and Kinesiology·Vincenzo QuinziEnrico Marchetti

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