Browsing by Author "Guartazaca Guartazaca, Belkis Gabriela"

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Reconstrucción maxilar con implantes subperiósticos personalizados. A propósito de un caso clínico
(Universidad de Cuenca, 2025-09-18) Guartazaca Guartazaca, Belkis Gabriela; Taipe Bautista, Diego Fabricio; Guamán Roldán, Hugo Xavier
Introduction: Surgical reconstruction and subsequent rehabilitation in patients with severe atrophies or significant bone defects in the maxilla represent a complex challenge in maxillofacial surgery. In the case of patients who have undergone maxillectomies, customized subperiosteal implants emerge as an effective alternative to conventional endosseous implants. Objective: This article aims to describe the rehabilitation of a patient with a history of partial maxillectomy using customized subperiosteal implants. Case report: A 77-year-old male patient, who had undergone a partial maxillectomy and reconstruction with a scapular free flap, was rehabilitated using customized subperiosteal implants. The implants were digitally designed using computer-aided design (CAD) software and manufactured from titanium. The surgical intervention was performed under general anesthesia, with a crestal incision and the use of a positioning guide to ensure precise placement of the implants. A provisional fixed polymethyl methacrylate (PMMA) prosthesis was placed immediately after surgery. Conclusion: Customized subperiosteal implants are an effective solution for severe maxillary defects, offering better outcomes and shorter treatment times thanks to technological advancements in their design.
Volume of the Upper Airway in Different Facial Skeletal Patterns Of A Population of Palastudents From the University Of Cuenca Using Cone Beam Computed Tomography
(2024) Bravo Calderón, Manuel Estuardo; Alvarez Chiong, Javier Enrique; Iniguez Matute, Wendy Dayanna; Guartazaca Guartazaca, Belkis Gabriela; Llapa Yuquilima, Carla Cecilia
n the context of diagnosing and planning treatment for patients with dentofacial deformities, it is crucial to examine the upper airway, as its function may be compromised by the facial skeletal pattern or impacted by planned surgical intervention. Cone Beam Computed Tomography (CBCT) is positioned as the preferred option for evaluation due to its precision and ability to predict possible changes. Objective: to evaluate the volume of the upper airway in different facial skeletal patterns of a population ofstudents from the University of Cuenca at TCHC. Materials and methods: 33 tomographies were evaluated through the Sidexis 4 program, where the volume of the nasopharynx, oropharynx, and hypopharynx was measured according to facial skeletal pattern and sex. Results: Of the 33 CBCT analyzed, 10 (30%) belonged to males and 23 (70%) to females. Within the population of patients with skeletal class I, it was found that the volume of the oropharynx was greater compared to the nasopharynx and hypopharynx, thus obtaining an average of 21.87 cm3, with a standard deviation of 5.09. Conclusions: The average volume of the upper airway in subjectswith Class I facial skeletal patterns is higher than in Class II, thus being statistically significant in the oropharynx. It is recommended to conduct studies with a larger population involving Class III skeletal patterns.