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KMID : 0362120160380040305
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Journal of Technologic Dentistry
2016 Volume.38 No. 4 p.305 ~ p.311
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An analysis of marginal adaptation of metal cores fabricated by selective laser sintering
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Kim Won-Soo
Kim Ki-Baek
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Abstract
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Purpose: The purpose of this study were to analysis of marginal adaptation of metal cores fabricated by selective laser sintering.
Methods: Main model was prepared and ten stone models were fabricated. Ten single metal cores were fabricated by selective laser sintering(SLS group) and another ten single metal cores using lost wax technique and casting method were manufactured(CAST group). The marginal adaptation of metal cores were analysis using by the silicone replica technique. Silicone replicas were sectioned two times. The marginal adaptations were measured using by digital microscope. Statistical analyses was performed with independent t-test(?·=0.05).
Results: Means of marginal adaptations were 90.3 ß≠ for SLS group and 65.1 ß≠ for CAST group. Two groups were statistically significant differences (p < 0.05).
Conclusion: Marginal adaptation of metal cores fabricated by selective laser sintering were ranged within the clinical recommendation.
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KEYWORD
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3D-printig , Fitness , Margin
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