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CC BY 4.0 · Eur J Dent 2023; 17(04): 1029-1036
DOI: 10.1055/s-0042-1758796
Original Article

Evaluation of Fitness and Accuracy of Milled and Three-Dimensionally Printed Inlays

Yoen Ah Lim 
1   Department of Conservative Dentistry, School of Dentistry, Wonkwang University, Iksan, Republic of Korea
,
Jeong Mi Kim
2   Wonkwang University Dental Hospital, Central Dental Laboratory, Iksan, Republic of Korea
,
Yoorina Choi
1   Department of Conservative Dentistry, School of Dentistry, Wonkwang University, Iksan, Republic of Korea
,
Sujung Park 
1   Department of Conservative Dentistry, School of Dentistry, Wonkwang University, Iksan, Republic of Korea
› Institutsangaben Funding This study was supported by Wonkwang University in 2021.
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Abstract

Objective This article compares and evaluates the marginal and internal fitness and three-dimensional (3D) accuracy of class II inlays fabricated using Tescera (TS) resin, milling of hybrid and zirconia blocks, and 3D printing with NextDent C&B.

Materials and Methods Fifty-two mesio-occlusal inlays were fabricated using conventional method with TS, milling of Lava Ultimate (LU), milling of Zolid Fx multilayer (ZR), and 3D printing (n = 13 each). The marginal and internal fitness were evaluated at six points in the mesio-distal section of a replica under a digital microscope (160× magnification), and the accuracy was evaluated using 3D software. Analyses were conducted using t-test, one-way analysis of variance (ANOVA) and two-way ANOVA, while Duncan's multiple range test was used for post hoc analyses (α = 0.05).

Results The marginal and internal fitness of the 3D and ZR were significantly superior to that of the TS and LU. For LU, ZR, and 3D, a significant discrepancy between the marginal gap and internal gap was observed (p < 0.05). On evaluating accuracy, trueness was significantly higher in ZR than in TS and LU; precision was significantly higher in 3D and ZR than in TS and LU (p < 0.05).

Conclusion The marginal and internal fitness and the accuracy of TS, ZR, and 3D were within the clinically acceptable range. The marginal and internal fitness and accuracy of 3D were better than those of TS and LU, which are commonly used in dentistry. There is immense potential for using 3D-printed inlays in routine clinical practice.

Keywords

3D print - inlay - fitness - precision

Financial Interest

The authors do not have any financial interest in the companies whose materials are included in this article.




Publikationsverlauf

Artikel online veröffentlicht:
04. Januar 2023

© 2023. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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  • References

  • 1 Reymus M, Fabritius R, Keßler A, Hickel R, Edelhoff D, Stawarczyk B. Fracture load of 3D-printed fixed dental prostheses compared with milled and conventionally fabricated ones: the impact of resin material, build direction, post-curing, and artificial aging-an in vitro study. Clin Oral Investig 2020; 24 (02) 701-710
    CrossrefPubMedSuche in Google Scholar
  • 2 Bousnaki M, Chatziparaskeva M, Bakopoulou A, Pissiotis A, Koidis P. Variables affecting the fit of zirconia fixed partial dentures: a systematic review. J Prosthet Dent 2020; 123 (05) 686-692.e8
    CrossrefPubMedSuche in Google Scholar
  • 3 Lee WS, Lee DH, Lee KB. Evaluation of internal fit of interim crown fabricated with CAD/CAM milling and 3D printing system. J Adv Prosthodont 2017; 9 (04) 265-270
    CrossrefPubMedSuche in Google Scholar
  • 4 Patzelt SB, Bishti S, Stampf S, Att W. Accuracy of computer-aided design/computer-aided manufacturing-generated dental casts based on intraoral scanner data. J Am Dent Assoc 2014; 145 (11) 1133-1140
    CrossrefPubMedSuche in Google Scholar
  • 5 Keßler A, Hickel R, Ilie N. In vitro investigation of the influence of printing direction on the flexural strength, flexural modulus and fractographic analysis of 3D-printed temporary materials. Dent Mater J 2021; 40 (03) 641-649
    CrossrefPubMedSuche in Google Scholar
  • 6 Park SM, Park JM, Kim SK, Heo SJ, Koak JY. Flexural strength of 3D-printing resin materials for provisional fixed dental prostheses. Materials (Basel) 2020; 13 (18) 3970
    CrossrefPubMedSuche in Google Scholar
  • 7 Cunali RS, Saab RC, Correr GM. et al. Marginal and internal adaptation of zirconia crowns: a comparative study of assessment. Braz Dent J 2017; 28 (04) 467-473
    CrossrefPubMedSuche in Google Scholar
  • 8 Goujat A, Abouelleil H, Colon P. et al. Marginal and internal fit of CAD-CAM inlay/onlay restorations: a systematic review of in vitro studies. J Prosthet Dent 2019; 121 (04) 590-597.e3
    CrossrefPubMedSuche in Google Scholar
  • 9 McLean JW, von Fraunhofer JA. The estimation of cement film thickness by an in vivo technique. Br Dent J 1971; 131 (03) 107-111
    CrossrefPubMedSuche in Google Scholar
  • 10 Kang SY, Lee HN, Kim JH, Kim WC. Evaluation of marginal discrepancy of pressable ceramic veneer fabricated using CAD/CAM system: additive and subtractive manufacturing. J Adv Prosthodont 2018; 10 (05) 347-353
    CrossrefPubMedSuche in Google Scholar
  • 11 Reich S, Gozdowski S, Trentzsch L, Frankenberger R, Lohbauer U. Marginal fit of heat-pressed vs. CAD/CAM processed all-ceramic onlays using a milling unit prototype. Oper Dent 2008; 33 (06) 644-650
    CrossrefPubMedSuche in Google Scholar
  • 12 Park SH, Yoo YJ, Shin YJ, Cho BH, Baek SH. Marginal and internal fit of nano-composite CAD/CAM restorations. Restor Dent Endod 2016; 41 (01) 37-43
    CrossrefPubMedSuche in Google Scholar
  • 13 Alajaji NK, Bardwell D, Finkelman M, Ali A. Micro-CT evaluation of ceramic inlays: comparison of the marginal and internal fit of five and three axis cam systems with a heat press technique. J Esthet Restor Dent 2017; 29 (01) 49-58
    CrossrefPubMedSuche in Google Scholar
  • 14 Homsy FR, Özcan M, Khoury M, Majzoub ZAK. Comparison of fit accuracy of pressed lithium disilicate inlays fabricated from wax or resin patterns with conventional and CAD-CAM technologies. J Prosthet Dent 2018; 120 (04) 530-536
    CrossrefPubMedSuche in Google Scholar
  • 15 Paul N, Raghavendra Swamy KN, Dhakshaini MR, Sowmya S, Ravi MB. Marginal and internal fit evaluation of conventional metal-ceramic versus zirconia CAD/CAM crowns. J Clin Exp Dent 2020; 12 (01) e31-e37
    CrossrefPubMedSuche in Google Scholar
  • 16 Wu J, Xie H, Sadr A, Chung KH. Evaluation of internal fit and marginal adaptation of provisional crowns fabricated with three different techniques. Sensors (Basel) 2021; 21 (03) 740
    CrossrefPubMedSuche in Google Scholar
  • 17 Laurent M, Scheer P, Dejou J, Laborde G. Clinical evaluation of the marginal fit of cast crowns–validation of the silicone replica method. J Oral Rehabil 2008; 35 (02) 116-122
    CrossrefPubMedSuche in Google Scholar
  • 18 Al Hamad KQ, Al Quran FA, AlJalam SA, Baba NZ. Comparison of the accuracy of fit of metal, zirconia, and lithium disilicate crowns made from different manufacturing techniques. J Prosthodont 2019; 28 (05) 497-503
    CrossrefPubMedSuche in Google Scholar
  • 19 Svanborg P. A systematic review on the accuracy of zirconia crowns and fixed dental prostheses. Biomater Investig Dent 2020; 7 (01) 9-15
    PubMedSuche in Google Scholar
  • 20 Goujat A, Abouelleil H, Colon P. et al. Mechanical properties and internal fit of 4 CAD-CAM block materials. J Prosthet Dent 2018; 119 (03) 384-389
    CrossrefPubMedSuche in Google Scholar
  • 21 Cho JH, Yoon HI, Han JS, Kim DJ. Trueness of the inner surface of monolithic crowns fabricated by milling of a fully sintered (Y, Nb)-TZP block in chairside CAD-CAM system for single-visit dentistry. Materials (Basel) 2019; 12 (19) 3253
    CrossrefPubMedSuche in Google Scholar
  • 22 Peters MC, Delong R, Pintado MR, Pallesen U, Qvist V, Douglas WH. Comparison of two measurement techniques for clinical wear. J Dent 1999; 27 (07) 479-485
    CrossrefPubMedSuche in Google Scholar
  • 23 Al Hamad KQ, Al-Rashdan RB, Al-Rashdan BA, Baba NZ. Effect of milling protocols on trueness and precision of ceramic crowns. J Prosthodont 2021; 30 (02) 171-176
    CrossrefPubMedSuche in Google Scholar
  • 24 Kim KB, Kim JH, Kim WC, Kim HY, Kim JH. Evaluation of the marginal and internal gap of metal-ceramic crown fabricated with a selective laser sintering technology: two- and three-dimensional replica techniques. J Adv Prosthodont 2013; 5 (02) 179-186
    CrossrefPubMedSuche in Google Scholar
  • 25 Denkena B, Breidenstein B, Busemann S, Lehr CM. Impact of hard machining on zirconia based ceramics for dental applications. Procedia CIRP 2017; 65: 248-252
    CrossrefSuche in Google Scholar
  • 26 Denry I, Kelly JR. State of the art of zirconia for dental applications. Dent Mater 2008; 24 (03) 299-307
    CrossrefPubMedSuche in Google Scholar
  • 27 Bayrak A, Akat B, Ocak M, Kιlιçarslan MA, Özcan M. Micro-computed tomography analysis of fit of ceramic inlays produced with different CAD software programs. Eur J Prosthodont Restor Dent 2021; 29 (03) 29
    Suche in Google Scholar
  • 28 Spitznagel FA, Boldt J, Gierthmuehlen PC. CAD/CAM ceramic restorative materials for natural teeth. J Dent Res 2018; 97 (10) 1082-1091
    CrossrefPubMedSuche in Google Scholar
  • 29 Türk AG, Sabuncu M, Ünal S, Önal B, Ulusoy M. Comparison of the marginal adaptation of direct and indirect composite inlay restorations with optical coherence tomography. J Appl Oral Sci 2016; 24 (04) 383-390
    CrossrefPubMedSuche in Google Scholar
  • 30 Alharbi N, Alharbi S, Cuijpers VMJI, Osman RB, Wismeijer D. Three-dimensional evaluation of marginal and internal fit of 3D-printed interim restorations fabricated on different finish line designs. J Prosthodont Res 2018; 62 (02) 218-226
    CrossrefPubMedSuche in Google Scholar
  • 31 Alharbi N, Osman R, Wismeijer D. Effects of build direction on the mechanical properties of 3D-printed complete coverage interim dental restorations. J Prosthet Dent 2016; 115 (06) 760-767
    CrossrefPubMedSuche in Google Scholar
  • 32 Lauvahutanon S, Takahashi H, Shiozawa M. et al. Mechanical properties of composite resin blocks for CAD/CAM. Dent Mater J 2014; 33 (05) 705-710
    CrossrefPubMedSuche in Google Scholar
  • 33 Kim KS, Yoon TH, Song KY, Ahn SG. Comparison of mechanical properties in 4 indirect composite resin. J Korean Acad Prosthodont 2007; 45: 21-33
    Suche in Google Scholar
  • 34 Revilla-León M, Özcan M. Additive manufacturing technologies used for processing polymers: current status and potential application in prosthetic dentistry. J Prosthodont 2019; 28 (02) 146-158
    CrossrefPubMedSuche in Google Scholar