대한치과기공학회지 (Journal of Technologic Dentistry)

  • 제42권3호
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  • Pages.197-201
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  • 2020
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  • 1229-3954(pISSN)
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  • 2288-5218(eISSN)
대한치과기공학회 (Korean Academy of Dental Technology)
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디지털 광공정 방식에 의해 출력된 치과용 보철물의 품질 분석

Analysis of the quality of dental prostheses printed by digital light-processing technology

  • 김재홍 (부산가톨릭대학교 보건과학대학 치기공학과) ;
  • 김기백 (대전보건대학교 치기공학과)
  • Kim, Jae-Hong (Department of Dental Laboratory Science, College of Health Science, Catholic University of Pusan) ;
  • Kim, Ki-Baek (Department of Dental Lab Science, Daejeon Health Institute of Technology)
  • 투고 : 2020.07.16
  • 심사 : 2020.08.04
  • 발행 : 2020.09.30
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초록

Purpose: This study aimed to assess the quality of dental prostheses printed by digital light-processing (DLP) technology. Methods: Ten experimental models were prepared. The ten specimens that were printed by DLP technology constituted the DLP group. The ten specimens that were produced in the same model by the casting method constituted the control group. The marginal gaps of the 20 specimens produced were measured. These gaps were measured by a silicon replica technique at two abutments of the specimen. Therefore, 20 marginal gaps were measured in each group. An independent sample t-test was performed to compare the marginal gaps measured in the two groups (α=0.05). Results: According to the results of the measurement, there was a significant difference between the mean marginal gap of the control group (78.8 ㎛) and that of the DLP group (91.5 ㎛), p<0.001. Conclusion: Although the mean marginal gaps of dental fixed prostheses produced by the DLP method was higher than the mean marginal gap of those produced by the casting method, it was considered to be within the clinical threshold value suggested by some previous studies.

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참고문헌

  1. Miyazaki T, Hotta Y, Kunii J, Kuriyama S, Tamaki Y. A review of dental CAD/CAM: current status and future perspectives from 20 years of experience. Dent Mater J. 2009;28:44-56. https://doi.org/10.4012/dmj.28.44
  2. Kim KB. Evaluation of clinical adaptation of dental prostheses printed by 3-dimensional printing technology. J Kor Aca Den Tec. 2019;41:1-7. https://doi.org/10.14347/kadt.2019.41.1.1
  3. Kim JH, Kim KB. Internal evaluation of provisional restorations according to the dental CAD/CAM manufacturing method: three-dimensional superimpositional analysis. J Kor Aca Den Tec. 2019;41:81-86. https://doi.org/10.14347/kadt.2019.41.2.81
  4. Kim KB, Kim JH, Kim WC, Kim JH. Three-dimensional evaluation of gaps associated with fixed dental prostheses fabricated with new technologies. J Prosthet Dent. 2014;112:1432-1436. https://doi.org/10.1016/j.prosdent.2014.07.002
  5. Kokubo Y, Nagayama Y, Tsumita M, Ohkubo C, Fukushima S, Vult von Steyern P. Clinical marginal and internal gaps of In-Ceram crowns fabricated using the GN-I system. J Oral Rehabil. 2005;32:753-758. https://doi.org/10.1111/j.1365-2842.2005.01506.x
  6. Foster LV. Failed conventional bridge work from general dental practice: clinical aspects and treatment needs of 142 cases. Br Dent J. 1990;168:199-201. https://doi.org/10.1038/sj.bdj.4807133
  7. Ostlund LE. Cavity design and mathematics: their effect on gaps at the margins of cast restorations. Oper Dent. 1985;10:122-137.
  8. Moldovan O, Rudolph H, Quaas S, Bornemann G, Luthardt RG. Internal and external fit of CAM-made zirconia bridge frameworks- a pilot study. Dtsch Zahnarztl Z.2006;61:38-42.
  9. McLean JW, von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J. 1971;131:107-111.
  10. Kim JH, Kim KB. An evaluation validity of the silicone replica technique at measurement on fit of fixed dental prostheses. J Dent Hyg Sci. 2012;12:566-571.

피인용 문헌

  1. 교합면의 교모형태에 따른 치과용 모형 스캐너의 정확도 평가 vol.42, pp.4, 2020, https://doi.org/10.14347/jtd.2020.42.4.313
  2. 3D 프린팅용 광 중합 수지의 두께에 따른 수축 비교 vol.43, pp.1, 2021, https://doi.org/10.14347/jtd.2021.43.1.1