Examinando por Autor "Pastor Arenas, Sandra Teresa"

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(Universidad Privada Norbert Wiener, 2017-11-20) Cueva Torres, Luis Alexander; Pastor Arenas, Sandra Teresa
The objective of this study was to determine the relationship between condylar morphology images obtained through CBCT and panoramic radiographs in patients from the Cirmax center. This was a cross-sectional relational study, and the sample consisted of 48 tomographies, each including its corresponding panoramic radiograph. The morphology of the right and left condyles was evaluated through CBCT images and panoramic radiographs. A data collection card was used to evaluate the mandibular condylar morphology, which was divided into two segments: evaluation through CBCT and evaluation of panoramic radiograph morphologies. Results: In CBCT, normal morphology was the most prevalent at 45.12%, while in panoramic radiographs, the most prevalent morphology was rounded, accounting for 50% of the total sample. In the images of the right and left condyles obtained from CBCT, normal morphology was the most prevalent at 52.1% and 45.8%, respectively; while in the panoramic radiograph images of the right and left condyles, the most prevalent morphology was rounded, with 52.1% and 47.9%, respectively. According to sex, in CBCT, normal morphology images had a higher prevalence in males at 47.2% and females at 45.5%; while in panoramic radiographs, 33.5% of males had a rounded morphology, much lower than the 58.5% in females. The Fisher's exact test was performed, obtaining p-values less than 0.05, verifying that there are statistically significant relationships between the condylar morphology images obtained through CBCT and those obtained through panoramic radiographs.
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Estudio comparativo de la discrepancia transversal de los maxilares con los métodos U Penn y Yonsei, evaluada en tomografías computarizadas Cone Beam, Lima 2023
(Universidad Privada Norbert Wiener, 2025-09-12) Lau Farfan, Yuc Lang Karla; Pastor Arenas, Sandra Teresa
El objetivo de la investigación fue evaluar la sensibilidad, especificidad y exactitud diagnóstica de los métodos UPenn y Yonsei utilizando tomografías computarizadas Cone Beam. Se analizaron 95 tomografías estandarizadas para medir las discrepancias entre los maxilares superior e inferior. Los resultados mostraron que la sensibilidad del método UPenn para detectar discrepancias transversales fue del 59.46%, mientras que la especificidad del método Yonsei alcanzó el 66.67%. En términos de exactitud diagnóstica, el método Yonsei presentó un valor de 61.05%. En conclusión, el análisis de Yonsei demostró ser más efectivo en la identificación de casos sin discrepancia transversal, lo que resalta su utilidad en el diagnóstico ortodóntico para mejorar la precisión en la evaluación de estas condiciones.
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Influence of bruxism, occlusal interferences and stress on temporomandibular dysfunction in young adults at the graduate orthodontic clinic of Norbert Wiener University
(Universidad Privada Norbert Wiener, 2024-05-30) Coronado Laurente, Johny; Pastor Arenas, Sandra Teresa
Introduction: Temporomandibular disorders are highly prevalent, constitute a significant health problem worldwide, and have a multifactorial etiology. The objective of this research was to determine the influence of stress, bruxism, and occlusal interferences on temporomandibular dysfunction in young adults treated at the postgraduate orthodontics clinic of Universidad Norbert Wiener. Materials and Methods: The study was descriptive, with a population of male and female patients aged 18 to 40 years treated at the postgraduate orthodontics clinic of Universidad Norbert Wiener. A questionnaire, the Fonseca Index, the DASS-21 index, a bruxism data collection form, and an occlusal interference data collection form were used. A bivariate data analysis with Spearman correlation and Chi-square test was applied. Results: It was determined that 54.2% of the patients had mild temporomandibular dysfunction, 80% had mild bruxism as a factor in temporomandibular dysfunction, and 2.5% had severe bruxism. Occlusal interferences as a factor in temporomandibular dysfunction were present in 28.3%, while 72% did not have occlusal interferences. Finally, stress as a factor in temporomandibular dysfunction was found in 55.8% of patients with a normal level, while 16.7% had moderate stress. Conclusion: It is necessary to emphasize the functional examination of the TMJ in patients, particularly in the early manifestation of temporomandibular disorders, and to act on risk factors through prevention and timely clinical interventions.