Examinando por Materia "Inclinación del incisivo inferior"

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    Association between facial biotype with the inclination of the lower incisor with respect to the mandibular plane with different skeletal patterns in cephalometric radiographs of patients of the odon clinic
    (Universidad Privada Norbert Wiener, 2021-11-06) Vergara Cosme, Thalía Neyssa; Araujo Farje, Jessica Jazmin
    The purpose of this study was to determine the association between facial biotype and the inclination of the lower incisor relative to the mandibular plane with different skeletal patterns in cephalometric radiographs. The sample consisted of 132 cephalometric radiographs (74 females and 58 males) aged between 14 and 40 years. The Ricketts’ Vert index was used to record and evaluate the five cephalometric values that determine the facial biotype, while the lower incisor inclination was measured using the IMPA angle, and the skeletal pattern was assessed using the ANB angle. Data were analyzed using the SPSS 21 statistical package, applying the Analysis of Variance (ANOVA) test and Pearson's Chi-square. Results: The most frequent facial biotype was mesofacial, accounting for 39.39% (n=52). The average inclination of the lower incisor was (93.89±7.63), and the most frequent skeletal pattern was Class I, with 43.94% (n=58). The female sex was the most frequent, with 56.06% (n=74), and the most frequent age group was 14 to 22 years, with 50.00% (n=66). It was also found that the greatest inclination of the lower incisor occurred in patients with a dolichofacial biotype (97.84±5.55). A significant difference (P=0.004) was found between skeletal pattern and facial biotype, with mesofacial biotype predominating in Class I, II, and III skeletal patterns. On the other hand, no significant difference was found in the interaction between skeletal pattern and sex, or age, regarding the lower incisor inclination (P>0.05). Conclusion: Patients with a dolichofacial biotype present a greater inclination of the lower incisor than those with mesofacial and brachyfacial biotypes. However, there is no statistically significant difference between skeletal pattern and the inclination of the lower incisor according to sex and age.