A1 Refereed original research article in a scientific journal
Evaluation of the Effect of Monomer Systems on the Softening of a Composite Resin
Authors: Leila Perea-Lowery, Mimmi Tolvanen, Pekka K. Vallittu
Publisher: Quintessence Pub. Co.
Publication year: 2019
Journal: International Journal of Prosthodontics
Journal name in source: The International journal of prosthodontics
Journal acronym: Int J Prosthodont
Volume: 32
Issue: 1
First page : 101
Last page: 103
Number of pages: 3
ISSN: 0893-2174
eISSN: 1942-4426
DOI: https://doi.org/10.11607/ijp.5692
Abstract
Purpose: To measure the softening via swelling of a composite resin by evaluating its surface hardness after the application of four monomer systems. Materials and Methods: A total of 40 specimens made of a hybrid composite resin were evaluated. Four monomer systems were used as surface-conditioning primers during five exposure times. Surface microhardness measurements (n = 8) were made after application of the monomer systems. Results: In all exposure times, Scotchbond Universal showed the highest influence on the composite resin surface softening (P < .05), followed by Stick Resin (P < .05). Conclusion: Surface softening of composite resins might be achieved with monomer systems, especially with Scotchbond Universal, which may have a positive influence when repairing aged composite resin restorations.
Purpose: To measure the softening via swelling of a composite resin by evaluating its surface hardness after the application of four monomer systems. Materials and Methods: A total of 40 specimens made of a hybrid composite resin were evaluated. Four monomer systems were used as surface-conditioning primers during five exposure times. Surface microhardness measurements (n = 8) were made after application of the monomer systems. Results: In all exposure times, Scotchbond Universal showed the highest influence on the composite resin surface softening (P < .05), followed by Stick Resin (P < .05). Conclusion: Surface softening of composite resins might be achieved with monomer systems, especially with Scotchbond Universal, which may have a positive influence when repairing aged composite resin restorations.
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