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CC BY-NC-ND 4.0 · Eur J Dent 2008; 02(03): 185-190
DOI: 10.1055/s-0039-1697376
Original Article
Dental Investigation Society

The Effect of Different Fiber Concentrations on the Surface Roughness of Provisional Crown and Fixed Partial Denture Resin

Mustafa Zortuk
a   Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
,
Kerem Kılıc
a   Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
,
Gulay Uzun
b   Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey
,
Ahmet Ozturk
c   Department of Biostatistics, Faculty of Medicine, Erciyes University, Kayseri, Turkey
,
Bulent Kesim
a   Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
› Institutsangaben
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Publikationsverlauf

Publikationsdatum:
27. September 2019 (online)

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ABSTRACT

Objectives: The aim of this study was to investigate surface roughness in provisional crown acrylics, after polishing, reinforced with different concentrations of glass fibers.

Methods: A total of 48 disk-shaped specimens were prepared using autopolymerizing acrylic resin. These specimens were divided into four groups according to the level of glass fiber added: Group A (no fiber), Group B (0.5%), Group C (1%) and Group D (2%). After polishing the specimens, an average surface roughness (Ra) value was calculated using a profilometer from four randomly selected points on the surface.

Results: A significant difference was determined among the surface roughness values of provisional crown resins to which different concentrations of fiber had been added (P<.001).Tukey�s test was then used to perform paired comparisons of the data between the different groups, and a significant difference was found between Group A (no fiber) and the other groups, between Group B (0.5%) and Group D (2%) and between Group C (1%) and Group D. On the other hand, there was no significant difference between Group B and Group C.

Conclusions: The reinforcement of provisional crown and fixed partial denture resin with glass fibers increases surface roughness. (Eur J Dent 2008;2:185-190)

Key Words:

Provisional restorations - Fiber - Roughness - Resin
 

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