Published online Apr 25, 2019.
https://doi.org/10.4047/jkap.2019.57.2.110
In vitro evaluation of the wear resistance of provisional resin materials fabricated by different methods
Abstract
Purpose
This study was to evaluate the wear resistance of 3D printed, milled, and conventionally cured provisional resin materials.
Materials and methods
Four types of resin materials made with different methods were examined: Stereolithography apparatus (SLA) 3D printed resin (S3P), digital light processing (DLP) 3D printed resin (D3P), milled resin (MIL), conventionally self-cured resin (CON). In the 3D printed resin specimens, the build orientation and layer thickness were set to 0° and 100 µm, respectively. The specimens were tested in a 2-axis chewing simulator with the steatite as the antagonist under thermocycling condition (5 kg, 30,000 cycles, 0.8 Hz, 5℃/55℃). Wear losses of the specimens were calculated using CAD software and scanning electron microscope (SEM) was used to investigate wear surface of the specimens. Statistical significance was determined using One-way ANOVA and Dunnett T3 analysis (α = .05).
Results
Wear losses of the S3P, D3P, and MIL groups significantly smaller than those of the CON group (P < .05). There was no significant difference among S3P, D3P, and MIL group (P > .05). In the SEM observations, in the S3P and D3P groups, vertical cracks were observed in the sliding direction of the antagonist. In the MIL group, there was an overall uniform wear surface, whereas in the CON group, a distinct wear track and numerous bubbles were observed.
Conclusion
Within the limits of this study, provisional resin materials made with 3D printing show adequate wear resistance for applications in dentistry.
Fig. 1
Preparation of the steatite specimens.
Fig. 2
Preparation of the resin specimens. (A) S3P, (B) D3P, (C) MIL, (D) CON (S3P: SLA 3D printed resin; D3P: DLP 3D printed resin; MIL: milled resin; CON: conventionally self-cured resin).
Fig. 3
Measurement protocol of wear losses. (A) Solid file of specimen before the wear test, (B) Solid file of specimen after the wear test, (C) Sectioning the worn region in the overlapping file before (A) and after (B) test, (D) Measurement of wear losses of worn region.
Fig. 4
The mean value (mm3) and standard deviation of wear losses of the resin materials after wear test. The columns connected by bars were significantly different (S3P: SLA 3D printed resin; D3P: DLP 3D printed resin; MIL: milled resin; CON: conventionally self-cured resin).
Fig. 5
SEM image of the worn surfaces of the resin materials after wear test (S3P: SLA 3D printed resin; D3P: DLP 3D printed resin; MIL: milled resin; CON: conventionally self-cured resin).
Table 1
Materials tested in this study
Table 2
Mean values and SDs of wear losses in each group (unit: mm3)
This work was supported by a 2-year Research Grant of Pusan National University.
References
-
Gough M. A review of temporary crowns and bridges. Dent Update 1994;21:203–207.
-
-
Fisher DW, Shillingburg HT Jr, Dewhirst RB. Indirect temporary restorations. J Am Dent Assoc 1971;82:160–163.
-
-
Melton D, Cobb S, Krell KV. A comparison of two temporary restorations: light-cured resin versus a self-polymerizing temporary restoration. Oral Surg Oral Med Oral Pathol 1990;70:221–225.
-
-
Shillingburg HT, Sather DA, Wilson EL, Cain JR, Mitchell DL, Blanco LJ, Kessler JC. In: Fundamentals of fixed prosthodontics. 4th ed. Chicago: Quintessence Publishing; 2012. pp. 149-163.
-
-
Nigel Tom T, Uthappa MA, Sunny K, Begum F, Nautiyal M, Tamore S. Provisional restorations: An overview of materials used. J Adv Clin Res Insights 2016;3:212–214.
-
-
van Dijken JW. Direct resin composite inlays/onlays: an 11 year follow-up. J Dent 2000;28:299–306.
-
-
Seo HS, Park JW, Hong SM, Lee SR. Comparative analysis of immediate functional loading and conventional loading about implant survival rate in the completely edentulous: Retrospective study. J Korean Dent Assoc 2014;52:771–782.
-
-
Bennani V. Fabrication of an indirect-direct provisional fixed partial denture. J Prosthet Dent 2000;84:364–365.
-
-
Song KY, Sorensen JA. Marginal adaptation of new provisional materials for fixed prosthodontics. J Korean Acad Stomatognathic Funct Occlusion 1997;13:247–255.
-
-
Lee S. Prospect for 3D printing technology in medical, dental, and pediatric dental field. J Korean Acad Pediatr Dent 2016;43:93–108.
-
-
Kim SJ, Jo KH, Lee KB. A comparison of the fidelity of various zirconia-based all-ceramic crowns fabricated with CAD/CAM systems. J Korean Acad Prosthodont 2009;47:148–155.
-
-
Landers R, Pfister A, Hübner U, John H, Schmelzeisen R, Mülhaupt R. Fabrication of soft tissue engineering scaffolds by means of rapid prototyping techniques. J Mater Sci 2002;37:3107.
-
-
Barry B. 3-D printing: The new industrial revolution. Business Horizons 2012;55:155–162.
-
-
Givens EJ Jr, Neiva G, Yaman P, Dennison JB. Marginal adaptation and color stability of four provisional materials. J Prosthodont 2008;17:97–101.
-
-
Fox CW, Abrams BL, Doukoudakis A. Provisional restorations for altered occlusions. J Prosthet Dent 1984;52:567–572.
-
-
Asefi S, Eskandarion S, Hamidiaval S. Fissure sealant materials: Wear resistance of flowable composite resins. J Dent Res Dent Clin Dent Prospects 2016;10:194–199.
-
-
Park JM, Ahn JS, Cha HS, Lee JH. Wear resistance of 3D printing resin material opposing zirconia and metal antagonists. Materials (Basel) 2018;11:1043
-
-
Astudillo Rubio D, Delgado Gaete A, Bellot-Arcís C, Montiel-Company JM, Pascual-Moscardó A, Almerich-Silla JM. Mechanical properties of provisional dental materials: A systematic review and meta-analysis. PLoS One 2018;13:e0193162
-
-
Yi HJ, Jeon YC, Jeong CM, Jeong HC. An in-vitro wear study of indirect composite resins against human enamel. J Korean Acad Prosthodont 2007;45:611–620.
-
-
Park C, Kim MH, Go JS, Hong SM, Shin BS. A study on the comparison mechanical properties of 3D printing prototypes with laminating direction. J Manuf Eng Technol 2015;24:334–341.
-