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In Vitro Attrition Wear Resistance of Four Types of Paste-Like Bulk-Fill Composite Resins Publisher Pubmed



Asadian F1 ; Hoseini AP2 ; Ahmadian L3 ; Rafeie N4 ; Rezaei S5 ; Moradi Z6
Authors
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Authors Affiliations
  1. 1. Restorative Dentistry Department, School of Dentistry, Birjand University of Medical Sciences, Birjand, Iran
  2. 2. Prosthodontics Department, School of Dentistry, Islamic Azad University of Medical Sciences, Tehran, Iran
  3. 3. Advanced Prosthodontics Program, College of Dentistry, University of Illinois at Chicago, Chicago, United States
  4. 4. Dental Research Center, Dentistry Research Institute, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Restorative Dentistry Department, School of Dentistry, Qom University of Medical Sciences, Qom, Iran
  6. 6. Restorative Dentistry Department, School of Dentistry, Tehran University of Medical Sciences, North Amirabad Ave, Tehran, Iran

Source: BMC Oral Health Published:2022


Abstract

Background: Recently, the application of bulk-fill composite resins has increased significantly. Attrition wear and the consequently increased surface roughness of composite resins are among the causes of restoration failure in the posterior teeth. This study aimed to compare the attrition wear and surface roughness of four types of bulk-fill composite resins compared to a conventional composite resin. Methods: EverX-Posterior, X-tra fil, SonicFill 2, and Filtek Bulk-Fill composites (bulk-fill) and Z250 composite (conventional resin composite) were evaluated. Thirty cylindrical specimens (n = 6) were weighed and monitored for 24 h until their weight was stabilized. The primary surface roughness of the specimens was measured by a profilometer. The specimens were then subjected to attrition wear in a chewing simulator. Next, the specimens were weighed, and the surface roughness was measured again. Data were analyzed by one-way ANOVA and Tukey’s post-hoc test at P < 0.05 significance level. Results: According to one-way ANOVA, the difference in weight loss was significant among the groups (P = 0.004) but the difference in surface roughness of the groups was not significant after the attrition wear (P > 0.05). Tukey’s post-hoc test showed that the weight loss of bulk-fill composites was not significantly different from that of Z250 conventional composite after the attrition wear (P > 0.05). Conclusion: Within the limitations of this study, it appears that the tested bulk-fill composite resins are comparable to the conventional composite regarding their attrition wear, increased surface roughness, and weight loss. © 2022, The Author(s).
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1. Evaluation of Wear Properties of Four Bulk-Fill Composites: Attrition, Erosion, and Abrasion, BioMed Research International (2021)
2. Evaluation of Microhardness of Two Bulk-Fill Composite Resins Compared to a Conventional Composite Resin on Surface and in Different Depths, Journal of Dentistry (Iran) (2022)
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