Dental and Medical Problems

Dent Med Probl
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ISSN 1644-387X (print)
ISSN 2300-9020 (online)
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Dental and Medical Problems

2020, vol. 57, nr 1, January-March, p. 39–44

doi: 10.17219/dmp/113003

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Comparative evaluation of the depth of cure and surface roughness of bulk-fill composites: An in vitro study

Ocena porównawcza głębokości utwardzenia i chropowatości powierzchni materiałów kompozytowych typu bulk-fill – badanie in vitro

Anusha Parasher1,A,D, Kishore Ginjupalli2,A,C,D,E,F, Krishnaraj Somayaji1,A,B,C,D,E,F, Pradeep Kabbinale3,B

1 Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, India

2 Department of Dental Materials, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, India

3 Department of Conservative Dentistry and Endodontics, Subbaiah Institute of Dental Sciences, Shimoga, India

Abstract

Background. Composites are in great demand due to the esthetic needs of the patients, which explains a wide variation in the types of available composites. However, the mechanical strength of the materials is questionable. Therefore, the mechanical properties of the newly available bulk-fill composites have been tested.
Objectives. The main objective of the study was to compare the depth of cure (DOC) and surface roughness of 3 different bulk-fill composites: X-tra fil® (XTF), Tetric EvoCeram® Bulk Fill (TEC) and Beautifil® Bulk Restorative (BBR).
Material and Methods. Fifty-seven (n = 19 in each group) samples were made using brass molds. All samples were subjected to Vickers hardness testing and profilometry. The one-way analysis of variance (ANOVA) test was used for the data analysis, followed by Tukey’s post hoc test.
Results. The differences in the mean surface microhardness values of the materials were statistically significant (p < 0.001), with XTF showing the highest value. The TEC composite showed a higher surface roughness as compared to BBR and XTF.
Conclusion. The results of the present study indicate that variations in the filler size and amount significantly influence the DOC and surface roughness of dental composites. Among the tested composites, the multi-hybrid composite exhibited superior DOC (XTF), whereas the nanohybrid composite exhibited superior surface finish (TEC).

Key words

hardness, surface roughness, bulk-fill composites, depth of cure

Słowa kluczowe

wytrzymałość, chropowatość powierzchni, materiały kompozytowe typu bulk-fill, głębokość utwardzenia

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