Examinando por Materia "MTA"

Mostrando 1 - 3 de 3

Acceso abierto
Clinical characteristics of two bioactive materials in direct pulp capping, Lima - 2023
(Universidad Privada Norbert Wiener, 2024-06-12) Soel Quispe, Natividad; Gómez Carrión, Christian Esteban
The objective of this study was to determine the clinical characteristics of two bioactive materials in direct pulp capping, Lima - 2023. A non-experimental, quantitative, applied, and longitudinal methodology was used, with a sample of 40 natural premolars and molars from patients aged 18 to 30 years attending the Nisha Medic clinic. The results revealed that the clinical characteristics of MTA predominated: at 7 days, 17 patients (85%) reported no pain, and 3 patients (15%) reported dental sensitivity; at 15 days, 17 patients (85%) reported no pain, and 3 patients (15%) experienced spontaneous pain; at 30 days, 17 patients (85%) reported no pain, and 3 patients (15%) experienced pain upon percussion. Additionally, the p-value found was 0.00, which is lower than the alpha value, thus rejecting the null hypothesis (Ho). With a 95% confidence level, it can be stated that there are differences between the clinical characteristics of the two bioactive materials. Based on the results obtained in this study, it can be concluded that there is a difference between the clinical characteristics of the two bioactive materials in direct pulp capping, Lima - 2023, with Biodentine showing better results.
Acceso abierto
Compressive strength of three bioceramic cements: mta, biodentine and mta repair hp, - in vitro. lima 2020
(Universidad Privada Norbert Wiener, 2021-11-23) Luis Fernández, Alessandra Junet; Gil Cueva, Silvia Liliana
Objective: To determine the compressive strength of three bioceramic cements: Mineral Trioxide Aggregate (MTA), MTA Repair HP, and Biodentine in vitro. Methodology: The total sample consisted of 60 blocks, divided into 20 for each bioceramic cement group. The study was experimental, longitudinal, and comparative, where the compressive strength of three bioceramic cements—Mineral Trioxide Aggregate (MTA), MTA Repair HP, and Biodentine—was measured in vitro at 24 and 48 hours after preparation. Statistical analysis was performed using the ANOVA and Shapiro statistical tests. Results: For all three cements, the compressive strength was higher at 48 hours than at 24 hours: MTA 3.69 MPa/2.51 MPa; MTA Repair HP 2.96 MPa/1.47 MPa; and Biodentine 69.97 MPa/51.28 MPa, with a significant difference (p<0.001). A time-dependent difference was observed between MTA and MTA Repair HP (p<0.001). Conclusion: Biodentine demonstrated higher compressive strength compared to MTA and MTA Repair HP, making it a better alternative among calcium silicate-based bioceramic materials.
Acceso abierto
Invitro evaluation of the chemical solubility of calcium silicate materials: theracal lc ®, biodentine ® and mta
(Universidad Privada Norbert Wiener, 2023-04-05) Zevallos Meneses, Nicole Fabiola; Huamani Caquiamarca, Yuliana Esther
Objective: To determine the solubility degree of Theracal LC, Biodentine, and MTA in the presence of 2.5% sodium hypochlorite over a period of 30 minutes. Methodology: The study aims to assess and compare the solubility rates of three calcium silicate-based materials, Theracal LC, Biodentine, and MTA, when exposed to 2.5% sodium hypochlorite for 30 minutes. Results: The solubility of the materials will be evaluated by measuring their mass before and after immersion in the sodium hypochlorite solution for the specified time. Conclusion: The results will provide insights into the solubility behaviors of Theracal LC, MTA, and Biodentine when subjected to sodium hypochlorite, an important factor in clinical applications such as root canal treatments.