Facultad de Odontología

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Browsing Facultad de Odontología by Author "Abad Salinas, Yulissa Raquel"

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    Dientes posteriores tratados endodónticamente: alternativas para su rehabilitación basadas en evidencia científica. Revisión de la literatura
    (Universidad de Cuenca, 2021-06-03) Aguirre Segarra, Amy Paola; Rodríguez León, Tannya Cristina; Abad Salinas, Yulissa Raquel
    The definitive restauration of an endodontically treated tooth (ETT) is essential to prevent a possible periapical reinfection, which determines its short- and long-term prognosis. The aim of this paper is to determine the survival rate and the type of restoration that should be prescribed in posterior teeth according to the loss of tooth structure. In order to be able to achieve this, a search was conducted using digital databases such as: Cochrane, Scopus and PubMed using certain inclusion and exclusion criteria; as well as a manual search performed using Google Scholar. As a result, thirty-four articles were obtained for full reading, from which two classifications emerged, which allowed the reviewers to join criteria and propose a new classification which will make life easier for the reader at the time of choosing the ideal restoration. For those teeth with minimal loss of structure, the treatment of choice is composite restorations (91.9% to 100% rate of success); in teeth with a moderate loss of dental structure the ideal treatment was the use of indirect restorations of partial or total coverage (92.4% to 98.95 rate of success) alongside a fiber post if deemed necessary, finally, in teeth with a great loss of dental structure alternative techniques should be chosen in order to preserve as much dental tissue as possible. It is necessary to recognize the available options at the time of choosing a type of restoration according to the requirements of the tooth, always considering to be as conservative as possible so as not to further weaken its structure.
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    Efecto del composite reforzado con fibras cortas y con fibras de polietileno sobre la resistencia a la fractura en premolares endodónticamente tratados
    (Universidad de Cuenca, 2025-06-04) Armijos Freire, Sandra Daniela; Abad Salinas, Yulissa Raquel
    Background: Previous studies have shown that endodontically treated teeth are at critically higher risk of fracture compared to vital teeth because tissue loss compromises the structural strength of the endodontically treated tooth. Objective: To determine the effect of short fiberreinforced composite and polyethylene fibers on fracture resistance in endodontically treated premolars, period 2023-2024. Methods: An in vitro cohort study was conducted with 40 maxillary premolars, of which 10 formed the control group (G4). Thirty teeth underwent endodontic treatment, standardized cavity preparations, and were divided into three restorative groups: (G1) Ribbond polyethylene fibers with flowable composite resin, (G2) Ribbond polyethylene fibers plus short fiber-reinforced composite, and (G3) only short fiberreinforced composite, with 10 teeth in each group. An oblique compressive load (30°) was applied until fracture. Results: Results show that intact premolars (control group, G4) showed the highest fracture resistance with an average of 440,710 ± 28,147 N. Among the experimental groups, the Ribbond fiber + everX Posterior group (G2) obtained the highest resistance (330,710 ± 27,475 N), followed by the everX Posterior group (G3) with 257,934 ± 57,124 N. The differences between the restored groups were statistically significant (P < 0.05), indicating a consistent variation in fracture resistance depending on the material used. The Weibull distribution reflected that group G2 presented the highest reliability (m = 11.644). Conclusion: The combination of Ribbond fiber with everX Posterior (G2) showed the highest strength, while Ribbond fiber alone (G1) had the lowest.