Examinando por Materia "Molares inferiores"

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Acceso abierto
Anatomical determination of the ducts mesio-vestibular roots, through diaphanization in the Peruvian population
(Universidad Privada Norbert Wiener, 2022-09-29) Torres Zelada, Cretta Tamina; Llerena Meza De Pastor, Verónica
The objective of this research was to determine the anatomical constitution of the mesio–vestibular root canals through diaphanization in the Peruvian population. This was an in vitro study using 61 teeth (lower molars). The methodology was hypothetical-deductive, with a quantitative approach, descriptive type, and observational, descriptive, and comparative design. Results: According to Vertucci's classification, in an in vitro test of 61 teeth, the results showed that 50% (30 teeth) belonged to Type I with one canal, followed by Type III with one canal at 25% (15 teeth). The third group was formed by Type IV with two canals at 8.33% (5 teeth), and the fourth group was Type V with one canal at 6.66% (4 teeth). Conclusions: The prevalence of Type I was determined, indicating the anatomical variety of root canal types present in the roots of the first lower molar in the Peruvian population, according to Vertucci’s classification. It was determined that there is a prevalence of anatomical variety in the direction of mesio–vestibular root canals in the Peruvian population. Additionally, it was concluded that lower molars with a single root canal are the most frequent in the Peruvian population.
Acceso abierto
Evaluation of the distance between the lower dental canal and the apices of the lower molars in cone beam computed tomography. Lima 2023
(Universidad Privada Norbert Wiener, 2023-12-05) Alvarez Lastarria, Lourdes Alexandra; Mezzich Gálvez, Jorge Luis
The objective of this study was to evaluate the average distance between the inferior dental canal and the apices of the lower molars in cone beam computed tomography scans, Lima 2023. The methodology used was deductive, with a quantitative approach, basic type, observational, descriptive, cross-sectional, and retrospective design. The study sample consisted of 80 tomography scans from patients aged 20 to 50 years from the 'Imágenes' Radiological Center. Measurements were made using the ICAT VISION tomography software. The results showed that the average distance from the inferior dental canal to the mesial and distal apex of the first lower molar was 5.52 ± 2.21 mm and 5.05 ± 2.27 mm, respectively; for the mesial and distal apex of the second lower molar, it was 3.46 ± 2.19 mm and 2.77 ± 2.02 mm, respectively. It was concluded, using the Mann-Whitney U test, that there were no significant differences (p > 0.05) in the average distances of the first lower molar between the left and right sides, and similarly for the second lower molar between the left and right sides. Regarding sex, no significant differences were found (p > 0.05); however, for the age group, the Kruskal-Wallis H test indicated significant differences (p ≤ 0.05).