Bibliographic citations
Ramírez, L., (2015). Posiciones e inclinaciones de estructuras dentoalveolares en pacientes con mordida abierta y profunda según el biotipo facial [Tesis, Universidad Nacional Mayor de San Marcos]. https://hdl.handle.net/20.500.12672/4337
Ramírez, L., Posiciones e inclinaciones de estructuras dentoalveolares en pacientes con mordida abierta y profunda según el biotipo facial [Tesis]. PE: Universidad Nacional Mayor de San Marcos; 2015. https://hdl.handle.net/20.500.12672/4337
@misc{renati/1202978,
title = "Posiciones e inclinaciones de estructuras dentoalveolares en pacientes con mordida abierta y profunda según el biotipo facial",
author = "Ramírez Mejía, Lissycecilia",
publisher = "Universidad Nacional Mayor de San Marcos",
year = "2015"
}
--- The purpose of this study was to compare he positions and inclinacinaciones of dentoalveolar structures in patients with open and deep bite according to the facial biotype. The sample consisted of 120 patients with open bite (n = 60) and deep bite (n = 60) averaged 16 to 20 years (age range 16 to 40), selected according to exclusion criteria given for research. This exhibition covers two groups categorized according to the overbite (over bite): a group of open bite (overbite <0 mm), and another group of deep bite (overbite ≥ 4.5 mm); and subgroups according to the facial biotype found the VERT index (Mesofacial, brachyfacial, dolichofacial). The digital cephalometric radiographs were nalyzed using AUTOCAD 2015 Inglés analysis program according to Steiner, Ricketts, Burstone and Legan to determine linear and angular measurements. The data were organized in tables and graphs using descriptive statistics. In addition to the U Mann-Whitney and T-student tests according to the normal distribution of samples with a significance level of 0.05, to define the homogeneity of variances the Levene test was used. The results were that within the open bite group (n = 60) 31 cases of dolichofacial biotype (51.7%), mesofacial 28 cases (46.7%), 1 case was found brachyfacial. In deep bite group (n = 60) 30 cases of brachyfacial biotype (60%), mesofacial 20 cases (33.3%) and 4 dolicofacial cases (6.7%) was found. According to mesofacial biotype between deep bite and open bite cases showed significant differences in the horizontal position of the upper incisors (p = 0.00) and lower (p = 0.001), vertical position of the first upper molar (p = 0, 00), upper incisor inclination (p = 0.00) and lower molar (p = 0.036). For patients with open bite mesofacial and dolichofacial significant difference was found only in the vertical position of upper incisor between these groups (p = 0.020). Comparing brachyfacial and mesofacial patients with deep bite, statistically significant difference was observed in the vertical positions of the upper incisors (p = 0.044) and horizontal position of the lower incisor (p = 0.006) and the inclination of the upper first molar (p = 0.001). It concludes that the positions and inclinations of molars and incisors vary among the group of open bite and deep bite as facial biotype. The height of the incisors, upper and lower first molars are greater, upper incisors and lower incisors are protruded in patients with deep bite than open bite. Dentoalveolares positions and inclinations vary mesofacial biotype. The upper incisors are slightly vestibularized and protruded, lower incisors protruding between mesofacial patients with deep bite that open bite. The height of the upper incisor is the only variable significantly higher among patients dolicofacial and mesofacial open bite. There are variations in the positions and inclinations in patients with dentoalveolar deep bite as the mesofacial and brachyfacial biotype. The lower incisors are more protruded deep bite mesofacial that bite deep brachyfacial. The predominant facial biotype in patients with open bite was the dolichofacial and in patients with deep bite the brachyfacial biotype.
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