Browsing by Author "Delgado Gaete, Bolívar Andrés"

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    Efecto del espesor y material Cad/Cam en la resistencia a la fatiga de molares tratados endodónticamente restaurados con carillas oclusales
    (Universidad de Cuenca, 2025-06-18) Salto Ortiz, David Gustavo; Delgado Gaete, Bolívar Andrés
    Endodontically treated teeth lose a certain amount of healthy dental tissue to make the preparations, which must comply with the thicknesses indicated by the manufacturer to guarantee their resistance. General Objective: To evaluate the influence of the thickness and type of material on fracture resistance in endodontically treated teeth (ETT) restored with occlusal veneers (OV). Materials and methods: 60 dental organs extracted by orthodontics or periodontics were included and divided into control group, Cerasmart 0.5-0.6mm group, Cerasmart 1.5-1.6mm group, Celtraduo 0.5-0.6mm group and Celtraduo 1.5-1.6mm group. The experimental groups were prepared according to the aforementioned thicknesses. A Kruskal-Wallis test was performed, for post hoc data the T3 Dunnett test was performed. Results: The experimental group that presented the highest value was G. CeltraDuo 1.5- 1.6mm with 618.21 newton, followed by Cerasmart 1.5-1.6mm with 579.14 newton. Between the control and CeltraDuo 0.5-0.6mm groups there was a significant difference p=0.025. Conclusion: Evaluation of restoration thickness revealed that increased restoration thickness does not influence the fracture resistance of endodontically treated premolars.
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    Estrategias para la remineralización del esmalte: una descripción general de las revisiones sistemáticas
    (Universidad de Cuenca, 2023-04-03) Becerra Moreira, María Auxiliadora; Brito Chicaiza, Christian David; Delgado Gaete, Bolívar Andrés
    Introduction: Remineralizing agents are alternative to oral treatment that induce mineral profits; Therefore, the treatment effectiveness is of scientific necessity. Objective: The aim of this systematic review is to evaluate the methodological quality of systematic reviews on the effectiveness in the remineralization of incipient lesions in enamel through different therapeutic methods using AMSTAR 2. An overview of systematic reviews (SRs) of randomized controlled trials (RCTs) and in vitro studies was performed. Methods: The search was performed using four digital databases and the grey literature. SRs on the remineralization of white spot lesions (WSLs) through different therapeutic alternatives were included. Results: The results evaluated were changes in the enamel structure. Eleven SRs were included. Two studies reported that casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) had greater remineralization potential than other compounds. Two studies found no significant difference between CPP-ACP and fluoridated agents. Four studies reported on the efficacy of fluoridated agents. One study found no difference between CPP-ACP and CPP–amorphous calcium fluoride phosphate (CPP-ACFP). Three studies did not yield conclusive results. Conclusions: Methodological quality was classified as high risk of bias for seven SRs and moderate risk of bias for four SRs. With a confidence level ranging from moderate to low, fluoridated compounds, nonfluoridated compounds, and combined compounds in randomized controlled trials show a potential to remineralize WSLs. Nonfluoridated compounds in in vitro studies (CPP-ACP) show statistically significant changes in enamel structure, but these results should be interpreted with caution.
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    Materiales y sistemas cerámicos actuales utilizados en próstesis fija: revisión sistemática de la literatura
    (2013) Delgado Gaete, Bolívar Andrés; Abad Coronel, Cristian Gustavo
    Objective: This Project aims to conduct a systematic review of the current literature covering the ceramic materials and systems used in fixed prostheses with respect to survival, material properties, marginal and internal fit to offer recommendations and clinical guidelines for use based on scientific evidence. Method and materials. A comprehensive literature review was completed between October 2012 to December 2012 with research that provided evidence regarding treatment of teeth with ceramic materials and systems. The search was performed using digital databases MEDLINE, PubMed and Cochrane; articles in English with a focus on evidence published between 2000 and 2012 were included. Search filters were used to limit the review, literature reviews and randomized controlled studies were included in this systematic review. All data to support or criticize the clinical application of ceramic materials and systems in terms of their survival, material properties, and marginal fit were investigated. Based on the results of this research, a guide of clinical recommendation was elaborated for the selection and application of current ceramic materials