Comparative Evaluation Of Flexural Strength Of Indirect Composite And Peek With And Without Aging

Abstract

AIM : The aim of this short study was to assess a crucial property that must be inherent in dental materials in order to be used reliably.

MATERIALS AND METHODS: According to ISO standardisation, 40 rectangular samples of PEEK (Group A) and indirect composite (Group B), each with 20 in each group, measuring 20 x 5 x 2.5 mm, were created. Of these, 10 samples (Group AI, Group AII) in each group were not aged, and the remaining 10 samples (Group BI, Group BII) were aged using thermocycling. A Three point bend test was used to test flexural strength both with and without aging. Unpaired t test statistical analysis was used to compare the two groups.

RESULTS: Flexural strength in both the composite as well as PEEK groups was lower after aging of the said specimens, but PEEK exhibited higher flextural strength when compared to indirect composite materials. (Mean Group AI: , Group AII: , Group BI:, Group BII: )

CONCLUSION

Flexural strength of PEEK was significantly higher than indirect composite, both with and without aging of specimens.