다양한 조성의 3D 프린팅 임시치관용 레진의 물성 비교

다국어 초록 (Multilingual Abstract)

Conventional dental resins for crown and bridge fulfill ISO 10477 and ISO 10993 before clinical application. Although 3D printing or rapid prototyping (RP) for the fabrication of temporary crown and bridge have been proposed, a little studies were reported for 3D printing resin for temporary crown and bridge. The purpose of this study was to evaluate the physical properties (such as water sorption and solubility, color stability and flexural strength) of the various 3D printing temporary crown and bridge resin following the ISO 10477:2018 and estimate the effect of chemical composition of resin on the physical properties. Four resins approved by KFDA and 4 experimental resins developed by different manufacturer were tested in this study. Samples were prepared with DLP typed 3D Printer (G-Printer) and post-cured using UV-light Cure Unit (Cure M). Proper 3D printing and post-curing conditions were selected for different 3D printing resins. Each test was performed according to the ISO 10477 and results were statistically analyzed using Tukey-multiple comparison test (p=0.05). Only group-B did not satisfied the ISO requirement (< 40 μg/ mm³) in water sorption test, but 3 groups (C, E and F) showed high solubility which exceeds the ISO requirement (< 7.5 μg/mm³). For color stability, the color difference were detected at 5 groups (A, E, F, G and H). Group-D and F showed the low flexural strength and some building direction did not satisfied the ISO requirement (> 60 MPa). Resin components may affect the flexural strength, then user should check the components of 3D printing resin. Deficient degree of polymerization may lead to large water sorption, water solubility and color changes. Further study should be done comparison between specimens printed with specific 3D printer recommended by manufacturer and specimens used in this study.

참고문헌 (Reference)

1 이은정, "광중합형 레진 임시 수복재료의 물리적·기계적 특성" 대한치과재료학회 39 (39): 225-234, 2012

2 Boberick KG, "Use of a flexible cast for the in direct fabrication of provisional restoration" 82 : 90-93, 1999

3 Zhu W, "Three-dimensional printing of bisphenol A-free polycarbonates" 10 : 5331-5339, 2018

4 Vaidyanathan TK, "Study of visible light activated polymerization in BisGMA-TEGDMA monomers with Type 1 and Type 2 photoinitiators using Raman spectroscopy" 33 : 1-11, 2017

5 Palin WM, "Reduced polymerization stress of MAPO-containing resin composite with increased curing speed, degree of conversion and mechanical properties" 30 : 507-516, 2014

6 Braian M, "Production tolerance of additive manufactured polymeric objects for clinical applications" 32 : 853-861, 2016

7 Molinero-Mourelle P, "Polylactic acid as a material for three-dimensional printing of provisional restorations" 31 : 349-350, 2018

8 Konta AA, "Personalised 3D printed medicines: which techniques and polymers are more successful?" 4 : 79-, 2017

9 Decker C, "Performance analysis of acylphosphine oxides in photoinitiated polymerization" 42 : 7551-7560, 2001

10 Stampfl J, "New materials for rapid prototyping applications" 206 : 1253-1256, 2005

11 Diaz-Arnold AM, "Microhardness of provisional fixed prosthodontics materials" 82 : 525-528, 1999

12 Miletic V, "Micro-Raman spectroscopic analysis of the degree of conversion of composite resins containing different initiators cured by polywave or monowave LED units" 40 : 106-113, 2012

13 Tjan AH, "Marginal fidelity of crowns fabricated from six proprietary provisional materials" 77 : 482-485, 1997

14 Bertolo MVL, "Influence of photoinitiator system on physical-chemical properties of experimental self-adhesive composites" 28 : 35-39, 2017

15 Salgado VE, "Influence of photoinitiator system and nanofiller size on the optical properties and cure efficiency of model composites" 30 : e264-e271, 2014

16 Cadenaro M, "Influence of different initiators on the degree of conversion of experimental adhesive blends in relation to their hydrophilicity and solvent content" 26 : 288-294, 2010

17 "ISO 10477:2018 Dentistry–Polymer-based crown and veneering materials"

18 Louvrier A, "How useful is 3D printing in maxillofacial surgery?" 118 : 206-212, 2017

19 Pawar AA, "High-performance 3D printing of hydrogels by water-dispersible photoinitiator nanoparticles" 2 : e1501381-, 2016

20 Alharbi N, "Factors influencing the dimensional accuracy of 3D-printed full-coverage dental restorations using stereolithography technology" 29 : 503-510, 2016

21 Digholkar S, "Evaluation of the flexural strength and microhardness of provisional crown and bridge materials fabricated by different methods" 16 : 328-334, 2016

22 Burgess JO, "Evaluation of resins for provisional restorations" 5 : 137-139, 1992

23 Pongprueksa P, "Degree of conversion and monomer elution of CQ/amine and TPO adhesives" 30 : 695-701, 2014

24 Endruweit A, "Curing of composite components by ultraviolet radiation : A review" 27 : 119-128, 2006

25 Schneider LF, "Curing efficiency of dental resin composites formulated with camphorquinone or trimethylbenzoyldiphenyl phosphine oxide" 28 : 392-397, 2012

26 Michalakis K, "Comparison of temperature increase in the pulp chamber during the polymerization of materials used for the direct fabrication of provisional restorations" 96 : 418-423, 2006

27 Osman RB, "Build angle: Does it influence the accuracy of 3D-printed dental restorations using digital light-processing technology?" 30 : 182-188, 2017

28 Davda K, "An investigation into the trueness and precision of copy denture templates produced by rapid prototyping and conventional means" 25 : 186-192, 2017

29 Barazanchi A, "Additive technology : update on current materials and applications in dentistry" 26 : 156-163, 2017

30 Revilla-León M, "Additive manufacturing technologies used for processing polymers : Current status and potential application in prosthetic dentistry" 28 : 146-158, 2019

31 Alharbi N, "Additive manufacturing techniques in prosthodontics : Where do we currently stand? A critical review" 30 : 474-484, 2017

32 Ikemura K, "A review of the development of radical photopolymerization initiators used for designing light-curing dental adhesives and resin composites" 29 : 481-501, 2010

33 Bilgin MS, "A review of computer-aided design/ computer-aided manufacture techniques for removable denture fabrication" 10 : 286-291, 2016

34 Bae EJ, "A comparative study of additive and subtractive manufacturing for dental restorations" 118 : 187-193, 2017

35 Stansbury JW, "3D printing with polymers : Challenges among expanding options and opportunities" 32 : 54-64, 2016

36 Tahayeri A, "3D printed versus conventionally cured provisional crown and bridge dental materials" 34 : 192-200, 2018