Grado de conversión de los cementos resinosos duales. Revisión bibliográfica
Currently, the cementation of single and multiple fixed prostheses in the field of dental rehabilitation is performed using dual-cure resin cements, which feature dual activation. Therefore, it is essential to consider the thickness and type of restorative material to prevent failures in polymerizat...
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| Format: | bachelorThesis |
| Sprog: | spa |
| Udgivet: |
2025
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| Fag: | |
| Online adgang: | https://dspace.unl.edu.ec/jspui/handle/123456789/32459 |
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Tilføj Tag | Summary: | Currently, the cementation of single and multiple fixed prostheses in the field of dental rehabilitation is performed using dual-cure resin cements, which feature dual activation. Therefore, it is essential to consider the thickness and type of restorative material to prevent failures in polymerization. To investigate this area in more detail, a qualitative study with a bibliographic and analytical approach was conducted. The objective was to analyze the degree of conversion of dual-cure cements, considering the time and intensity of the light source. A total of 26 scientific articles were selected based on inclusion and exclusion criteria, obtained from the following scientific databases: PubMed Central, Scopus, The Journal of Prosthetic Dentistry, SciELO, MDPI, Springer Nature Link, Journal of Esthetic and Restorative Dentistry, Istanbul University Press, and Operative Dentistry, covering the period from 2014 to 2024. The results indicated that the optimal photopolymerization time for dual-cure resin cements ranges from 20 to 40 seconds, with a light intensity between 901 and 1200 mW/cm². Inadequate photopolymerization of these materials was associated with a 46% reduction in hardness, a decrease in flexural strength, compressive strength, elastic modulus, and tensile strength by 31%, and cytotoxicity observed in 23% of the analyzed studies. In conclusion, it is crucial to consider the time and intensity of the light source to achieve an adequate degree of conversion in these materials and thereby avoid failures in the cementation of prosthetic restorations |
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