Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2022 Dec;13(Suppl 2):S466-S469.
doi: 10.4103/japtr.japtr_255_22. Epub 2022 Dec 30.

Surface roughness changes of two composite resin restorative materials after thermocycling

Taanya Imtiaz  1 , S Balaji Ganesh  2 , S Jayalakshmi  2
Affiliations

Surface roughness changes of two composite resin restorative materials after thermocycling

Taanya Imtiaz et al. J Adv Pharm Technol Res. 2022 Dec.

Abstract

Composite is usually a mixture of two phases. The composites used in dentistry have high durability. The individual properties of each phase are important to increase the mechanical property of the composite. This study aimed to determine the surface roughness changes of two composite resin restorative materials after thermocycling. Two of the commercially available composites were chosen (RestoFill and SwissTEC). The composite disks of dimension 10 mm diameter and 3 mm height were prepared using silicone molds, and every increment was light cured for 30 s. A stylus profilometer was used to assess the surface roughness prethermocycling, and then, the disks were subjected to an integrated thermocycler (T.S-4.4) for 1000 cycles. The postsurface roughness was obtained after the thermocycling process using the same stylus profilometer. The surface parameter values before and after thermocycling of the SwissTEC sample is less than that of RestoFill. There was a significant difference between the Rz and Rq values of the two different commercially available composite materials. Thus, the present study concludes that thermocycling influenced the surface roughness of composite resin and increased the surface roughness of both the RestoFill and SwissTEC composites.

Keywords: Composite resin; innovative measurement; surface roughness; thermocycling.

PubMed Disclaimer

Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
SwissTEC and RestoFill composite samples
Figure 2
Figure 2
The diamond tip of the stylus profilometer
See this image and copyright information in PMC

References

    1. Sang EJ, Song JS, Chung SH, Jin BH, Hyun HK. Influence of a new polishing system on changes in gloss and surface roughness of resin composites after polishing and brushing. Dent Mater J. 2021;40:727–35. - PubMed
    1. Kishore SO, Jayalakshmi S, Ganesh SB. Comparison of surface roughness of two commercially available glass ionomer cements after brushing simulation with herbal and fluoridated toothpaste – An in vitro study. J Pharm Res Int. 2022;34:31–9.
    1. Özel Bektas Ö, Eren D, Herguner Siso S, Akin GE. Effect of thermocycling on the bond strength of composite resin to bur and laser treated composite resin. Lasers Med Sci. 2012;27:723–8. - PubMed
    1. Senawongse P, Pongprueksa P. Surface roughness of nanofill and nanohybrid resin composites after polishing and brushing. J Esthet Restor Dent. 2007;19:265–73. - PubMed
    1. Attar N. The effect of finishing and polishing procedures on the surface roughness of composite resin materials. J Contemp Dent Pract. 2007;8:27–35. - PubMed