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http://dx.doi.org/10.14347/jtd.2021.43.2.56

Observation of surface roughness on three types of resin based on grinding time of dental automatic barrel finishing  

Jung, An-Na (Department of Dental Laboratory Science, Catholic University of Pusan)
Ko, Hyeon-Jeong (Department of Dental Laboratory Science, Catholic University of Pusan)
Park, Yu-Jin (Department of Dental Laboratory Science, Catholic University of Pusan)
Publication Information
Journal of Technologic Dentistry / v.43, no.2, 2021 , pp. 56-61 More about this Journal
Abstract
Purpose: This study aimed to produce resin prosthetics using a dental automatic barrel finishing. Surface roughness and surface topography of resins were observed according to the grinding time of the dental automatic barrel finishing. Methods: This study was performed with thermopolymer, autopolymer, and photopolymer resins. The dimensions of the specimen were 10×10×2 mm. Each specimen was polymerized according to the manufacturer's instructions. The polymerized resin was honed for 30 minutes at 5-min intervals in a dental automatic barrel finishing. The specimen was observed using a three-dimensional (3D) optical microscope, and the surface roughness was measured. Results: After the polishing with the dental automatic barrel finishing, the heat-cured (HC) specimen showed the highest and lowest values of Ra after 10 and 15 minutes, respectively. The self-cured (SC) specimen showed the highest and lowest values of Ra after 10 and 25 minutes, respectively. Finally, the 3D specimen showed the highest and lowest values of Ra after 5 and 20 minutes, respectively. Conclusion: After measuring the surface roughness of the three types of resins according to the grinding time of the dental automatic barrel finishing, the lowest Ra values for the HC, SC, and 3D specimens were measured after 15, 25, and 20 minutes, respectively. Therefore, we concluded that a limit on the grinding time of the resin using a dental automatic barrel finishing is needed.
Keywords
Barrel finishing; Grinding time; Ra; Resin; Surface roughness;
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1 Vander Voort GF Metallography: principles and practice. Materials Park (OH): ASM International, 1999. p. 119-164, 562-598.
2 Lee JS. A study on the Barrel finishing process selection [master's thesis]. Korea Polytechnic University, 2010.
3 Kuhar M, Funduk N. Effects of polishing techniques on the surface roughness of acrylic denture base resins. J Prosthet Dent. 2005;93:76-85.   DOI
4 Morimune S, Nishino T, Goto T. Ecological approach to graphene oxide reinforced poly (methyl methacrylate) nanocomposites. ACS Appl Mater Interfaces. 2012;4:3596-3601.   DOI
5 Bollen CM, Lambrechts P, Quirynen M. Comparison of surface roughness of oral hard materials to the threshold surface roughness for bacterial plaque retention: a review of the literature. Dent Mater. 1997;13:258-269.   DOI
6 Gungor H, Gundogdu M, Yesil Duymus Z. Investigation of the effect of different polishing techniques on the surface roughness of denture base and repair materials. J Prosthet Dent. 2014;112:1271-1277.   DOI
7 Lee JR, Jeong CH, Choi JH, Hwang JW, Lee DH. The effects of polishing technique and brushing on the surface roughness of acrylic resin. J Korean Acad Prosthodont. 2010;48:287-293.   DOI
8 Hwang SS, Im YW, Kim SC, Han MS. Evaluation of surface roughness of heat-polymerized denture base resin according to the polishing step. J Korean Acad Dent Technol. 2015;37:205-212.   DOI
9 Jo JK. Mechanical properties by resin injection method of orthdontic acrylic resin. J Digit Converg. 2020;18:341-346.
10 Chen H, Wang B, Gao D, Guan M, Zheng L, Ouyang H, et al. Broad-spectrum antibacterial activity of carbon nanotubes to human gut bacteria. Small. 2013;9:2735-2746.   DOI
11 Jeong YC. Effect of polishing time of surface roughness and surface topography on Co-Cr alloy by dental auto polishing system [master's thesis]. Busan: Catholic University of Pusan, 2020.
12 Berger JC, Driscoll CF, Romberg E, Luo Q, Thompson G. Surface roughness of denture base acrylic resins after processing and after polishing. J Prosthodont. 2006;15: 180-186.   DOI
13 Al-Kheraif AA. The effect of mechanical and chemical polishing techniques on the surface roughness of heat-polymerized and visible light-polymerized acrylic denture base resins. Saudi Dent J. 2014;26:56-62.   DOI
14 Loney RW, Moulding MB, Hacker CH, Ritsco RG. Finishing and polishing of a poly (fluoroalkoxyphosphazene) resilient denture liner. Int J Prosthodont. 1994;7:362-367.
15 Won JH, Oh RT, Kim JH, Kim WK. A study on the centrifugal barrel finishing of 3 dimensional form face (1). JKSPE. 1998;11:31-35.
16 Kim YM, Shin SJ, Song MJ, Park JW. The evaluation of surface roughness and polishing time between polishing systems. J Korean Acad Conserv Dent. 2011;36:119-124.   DOI