Browsing by Author "Cabrera Maldonado, Leonardo Flavio"

Now showing 1 - 5 of 5

Análisis de la relación espacial del seno maxilar con el tercer molar superior erupcionado a través de tomografías computarizadas de haz cónico: Facultad de Odontología. Universidad de Cuenca. Periodo 2017-2024
(Universidad de Cuenca, 2025-09-17) Chasi Morocho, Gabriel Alexander; Álvarez Chiong, Javier Enrique; Cabrera Maldonado, Leonardo Flavio
Introduction: The maxillary sinus is a paranasal structure located in the maxillary bone, it maintains a close anatomical relationship with the upper third molars. This proximity may increase the risk of surgical complications, such as sinus perforations or oroantral fistulas, especially during endodontic or surgical procedures. Cone beam computed tomography (CBCT) has been shown to be more accurate than panoramic radiographs in the three-dimensional evaluation of these anatomical relationships. Objective: Analyze the relationship and anatomical proximity between the apices of erupted upper third molars and the floor of the maxillary sinus, according to their vertical classification, by analyzing CBCT images. Materials and methods: Observational, descriptive, cross-sectional study with a quali-quantitative approach. We analyzed 105 CBCTs of patients between 21 and 59 years old, obtained between 2017 and 2024. The distance in millimeters between the nearest root apex and the floor of the maxillary sinus was measured, and the vertical relationship was classified as inside (IS), in contact (CO) or outside (OS). Results: The most frequent relationship was CO type (38.2%), followed by OS (36.8%) and IS (25%). Significant differences were found in the anatomical proximity between these groups, with higher surgical risk in CO and IS types. There was a slight association with sex and a higher prevalence of type CO in young patients. Conclusions: The use of CBCT allows an accurate assessment of the maxillary molar-sinus relationship, essential for surgical planning. Its routine use is recommended when two-dimensional images suggest a close or risky relationship.
Efecto de la quimioterapia sistémica y radioterapia local, sobre tejidos de la cavidad bucal. Hospital de SOLCA. Cuenca 200-2001
(2001) Carvajal Endara, Andrea Soledad; Cabrera Maldonado, Leonardo Flavio; Abad Coronel, Dunia Elizabeth
Nasopalatine cyst excision and bone regeneration
(Universidad de Cuenca, 2023-10-06) Cobos Andagoya, Gabriela Vanessa; Sanguil Vásquez, Karina Estefania; Cabrera Maldonado, Leonardo Flavio
The nasopalatine cyst is a non-odontogenic cyst, located within the nasopalatine duct of the maxilla, its diagnosis in most cases is by routine radiological finding and in other cases by the presence of symptomatology; coming to generate pain, paresthesia and visible signs such as facial deformities.
Rehabilitación del maxilar superior con atrofia alveolar maxilar severa. Presentación de caso clínico.
(Universidad de Cuenca, 2010-07) Abad Coronel, Cristian Gustavo; Cabrera Maldonado, Leonardo Flavio
The prosthetic rehabilitation, in patients with severe maxillary atrophy in our environment has been limited to use ofremovable dentures in certain cases, and surgí- cal treatments aimed at increasing the upperjaw bone, in order to achieve a suitable ground for conventíonal implant fixation. This is a case in which two zygomatic implants were used, one on each side, and three con- ventional implants in the maxillary anterior región to build a hybrid prosthesis; which has been under obser- vation for four years. The clinical significance ís of this article is to establish that there is an additional option to rehabilítate patients with severe maxillary atrophy without performing surgeñes increased bone tissue for the subsequent fixing of conventional implants, which the patient observes reduced recovery time and treatment sessions without neglecting the implications of a complex procedure and requires properly trained and experienced staff.
Relación espacial del conducto mandibular con el tercer molar en tomografías computarizadas de haz cónico. Facultad de Odontología de la Universidad de Cuenca. Periodo 2017-2023
(Universidad de Cuenca, 2023-10-12) Bravo Anchundia, David Ismael; Cabrera Maldonado, Leonardo Flavio
Introduction: The mandibular canal is a very variable anatomical structure in its three-dimensional position with the third molar, due to the neurovascular content, its identification can prevent possible complications such as intraoperative bleeding, an injury to the inferior alveolar nerve and the development of a traumatic neuroma. Objective: To determine the prevalence of the spatial relationship of the mandibular canal with the third molar. Methods: A descriptive cross-sectional study was carried out, which evaluated the CBCT files of the anonymized database of the Department of Imaging of the Faculty of Dentistry of the University of Cuenca within the period 2017 - 2023. The CBCTs that met the selection criteria were statistically analyzed according to the spatial relationship variable. The CBCTs were examined by the same observer prior to calibration by a specialist in Dental and Maxillofacial Imaging. Results: 325 lower third molars were evaluated. The highest prevalence of the spatial relationship between the lower third molar and the mandibular canal was the caudal relationship without contact in 32.0%, followed by the lingual relationship in contact in 22.2%, buccal in contact in 14.8%, caudal in contact in 12.9%, vestibular without contact in 8.6%, interradicular in contact in 6.8%, lingual without contact in 1.5% and intrarradicular in contact in 1.2%. 28.9% of the third molars presented aberrant canals. Conclusions: The most prevalent spatial relationship between the mandibular canal and the third molar was the non-contact caudal relationship.