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Effect of repair methods and materials on the flexural strength of 3D-printed denture base resin

  • Received : 2022.08.03
  • Accepted : 2022.10.12
  • Published : 2022.10.31

Abstract

PURPOSE. The aim of this study was to evaluate the flexural strength of a 3D-printed denture base resin (Cosmos Denture), after different immediate repair techniques with surface treatments and thermocycling. MATERIALS AND METHODS. Rectangular 3D-printed denture base resin (Cosmos Denture) specimens (N = 130) were thermocycled (5,000 cycles, 5℃ and 55℃) before and after the different repair techniques (n = 10 per group) using an autopolymerized acrylic resin (Jet, J) or a hard relining resin (Soft Confort, SC), and different surface treatments: Jet resin monomer for 180 s (MMA), blasting with aluminum oxide (JAT) or erbium: yttrium-aluminum-garnet laser (L). The control group were intact specimens. A three-point flexural strength test was performed, and data (MPa) were analyzed by ANOVA and Games-Howell post hoc test (α = 0.05). Each failure was observed and classified through stereomicroscope images and the surface treatments were viewed by scanning electron microscope (SEM). RESULTS. Control group showed the highest mean of flexural strength, statistically different from the other groups (P < .001), followed by MMA+J group. The groups with L treatment were statistically similar to the MMA groups (P > .05). The JAT+J group was better than the SC and JAT+SC groups (P < .05), but similar to the other groups (P > .05). Adhesive failures were most observed in JAT groups, especially when repaired with SC. The SEM images showed surface changes for all treatments, except JAT alone. CONCLUSION. Denture bases fabricated with 3D-printed resin should be preferably repaired with MMA+J. SC and JAT+SC showed the worst results. Blasting impaired the adhesion of the SC resin.

Keywords

Acknowledgement

The authors thank USP (University of Sao Paulo, School of Dentistry, Ribeirao Preto, Brazil) for the technical assistance with the thermocycling and laser application. The authors report no conflict of interest.

References

  1. Alghazzawi TF. Advancements in CAD/CAM technology: Options for practical implementation. J Prosthodont Res 2016;60:72-84. https://doi.org/10.1016/j.jpor.2016.01.003
  2. Tasaka A, Matsunaga S, Odaka K, Ishizaki K, Ueda T, Abe S, Yoshinari M, Yamashita S, Sakurai K. Accuracy and retention of denture base fabricated by heat curing and additive manufacturing. J Prosthodont Res 2019;63:85-9. https://doi.org/10.1016/j.jpor.2018.08.007
  3. Kalberer N, Mehl A, Schimmel M, Muller F, Srinivasan M. CAD-CAM milled versus rapidly prototyped (3D-printed) complete dentures: An in vitro evaluation of trueness. J Prosthet Dent 2019;121:637-43. https://doi.org/10.1016/j.prosdent.2018.09.001
  4. Prpic V, Schauperl Z, Catic A, Dulcic N, Cimic S. Comparison of mechanical properties of 3D-Printed, CAD/CAM, and conventional denture base materials. J Prosthodont 2020;29:524-8. https://doi.org/10.1111/jopr.13175
  5. da Veiga Pessoa DM, Roncalli AG, de Lima KC. Economic and sociodemographic inequalities in complete denture need among older Brazilian adults: a cross-sectional population-based study. BMC Oral Health 2016;17:5. https://doi.org/10.1186/s12903-016-0233-9
  6. Bettencourt AF, Neves CB, de Almeida MS, Pinheiro LM, Oliveira SA, Lopes LP, Castro MF. Biodegradation of acrylic based resins: a review. Dent Mater 2010;26:e171-80. https://doi.org/10.1016/j.dental.2010.01.006
  7. Rached RN, Powers JM, Del Bel Cury AA. Repair strength of autopolymerizing, microwave, and conventional heat-polymerized acrylic resins. J Prosthet Dent 2004;92:79-82. https://doi.org/10.1016/j.prosdent.2004.04.005
  8. Minami H, Suzuki S, Minesaki Y, Kurashige H, Tanaka T. In vitro evaluation of the influence of repairing condition of denture base resin on the bonding of autopolymerizing resins. J Prosthet Dent 2004;91:164-70. https://doi.org/10.1016/j.prosdent.2003.10.023
  9. Bural C, Bayraktar G, Aydin I, Yusufoglu I, Uyumaz N, Hanzade M. Flexural properties of repaired heat-polymerising acrylic resin after wetting with monomer and acetone. Gerodontology 2010;27:217-23. https://doi.org/10.1111/j.1741-2358.2009.00321.x
  10. Pereira Rde P, Delfino CS, Butignon LE, Vaz MA, Arioli-Filho JN. Influence of surface treatments on the flexural strength of denture base repair. Gerodontology 2012;29:e234-8. https://doi.org/10.1111/j.1741-2358.2011.00454.x
  11. Arioli Filho JN, Butignon LE, Pereira R de P, Lucas MG, Mollo Junior F de A. Flexural strength of acrylic resin repairs processed by different methods: water bath, microwave energy and chemical polymerization. J Appl Oral Sci 2011;19:249-53. https://doi.org/10.1590/S1678-77572011000300013
  12. Cilingir A, Bilhan H, Geckili O, Sulun T, Bozdag E, Sunbuloglu E. In vitro comparison of two different materials for the repair of urethan dimethacrylate denture bases. J Adv Prosthodont 2013;5:396-401. https://doi.org/10.4047/jap.2013.5.4.396
  13. Alkurt M, Yesil Duymus Z, Gundogdu M. Effect of repair resin type and surface treatment on the repair strength of heat-polymerized denture base resin. J Prosthet Dent 2014;111:71-8. https://doi.org/10.1016/j.prosdent.2013.09.007
  14. Ozdemir H, Ozdogan A. Bond strength of resilient lining materials to denture base resin: a systematic review and meta-analysis. J Prosthodont 2018;27:828-41. https://doi.org/10.1111/jopr.12958
  15. Rached RN, Del-Bel Cury AA. Heat-cured acrylic resin repaired with microwave-cured one: bond strength and surface texture. J Oral Rehabil 2001;28:370-5. https://doi.org/10.1046/j.1365-2842.2001.00666.x
  16. Vallittu PK, Lassila VP, Lappalainen R. Wetting the repair surface with methyl methacrylate affects the transverse strength of repaired heat-polymerized resin. J Prosthet Den 1994;72:639-43. https://doi.org/10.1016/0022-3913(94)90297-6
  17. Tamore SH, Jyothi KS, Muttagi S, Gaikwad AM. Flexural strength of surface-treated heat-polymerized acrylic resin after repair with aluminum oxide-reinforced autopolymerizing acrylic resin. Contemp Clin Dent 2018;9:S347-53.
  18. Qaw MS, Abushowmi TH, Almaskin DF, AlZaher ZA, Gad MM, Al-Harbi FA, Abualsaud R, Ammar MM. A novel approach to improve repair bond strength of repaired acrylic resin: an in vitro study on the shear bond strength. J Prosthodont 2020;29:323-33. https://doi.org/10.1111/jopr.12970
  19. Yadav NS, Khare S, Mishra SK, Vyas R, Mahajan H, Chitumalla R. In-vitro evaluation of transverse strength of repaired heat cured denture base resins without surface treatment and with chemical and mechanical surface treatment. J Int Oral Health 2015;7:89-92.
  20. Leles CR, Machado AL, Vergani CE, Giampaolo ET, Pavarina AC. Bonding strength between a hard chairside reline resin and a denture base material as influenced by surface treatment. J Oral Rehabil 2001;28:1153-7. https://doi.org/10.1046/j.1365-2842.2001.00786.x
  21. Shimizu H, Ikuyama T, Hayakawa E, Tsue F, Takahashi Y. Effect of surface preparation using ethyl acetate on the repair strength of denture base resin. Acta Odontol Scand 2006;64:159-63. https://doi.org/10.1080/00016350500514808
  22. Jacobsen NL, Mitchell DL, Johnson DL, Holt RA. Lased and sandblasted denture base surface preparations affecting resilient liner bonding. J Prosthet Dent 1997;78:153-8. https://doi.org/10.1016/S0022-3913(97)70119-7
  23. Gundogdu M, Yesil Duymus Z, Alkurt M. Effect of surface treatments on the bond strength of soft denture lining materials to an acrylic resin denture base. J Prosthet Dent 2014;112:964-71. https://doi.org/10.1016/j.prosdent.2014.01.017
  24. Akin H, Tugut F, Guney U, Akar T. Shear bond strength of denture teeth to two chemically different denture base resins after various surface treatments. J Prosthodont 2014;23:152-6. https://doi.org/10.1111/jopr.12081
  25. Kumar V, Kumar L, Sehgal K, Datta K, Pal B. A comparative evaluation of effect of reinforced autopolymerizing resin on the flexural strength of repaired heat-polymerized denture base resin before and after thermocycling. J Int Soc Prev Community Dent 2017;7:S99-106.
  26. Yoshida K, Takahashi Y, Hamanaka I, Kawaguchi T, Sasaki H, Shimizu H. Reinforcing effect of glass fiber-reinforced composite reinforcement on flexural strength at proportional limit of a repaired denture base resin. Acta Biomater Odontol Scand 2015;1:81-5. https://doi.org/10.3109/23337931.2015.1099441
  27. Rahaman Ali AAA, John J, Mani SA, El-Seedi HR. Effect of thermal cycling on flexural properties of microcrystalline cellulose-reinforced denture base acrylic resins. J Prosthodont 2020;29:611-6. https://doi.org/10.1111/jopr.13018
  28. Gad MM, Rahoma A, Abualsaud R, Al-Thobity AM, Akhtar S, Siddiqui IA, Al-Harbi FA. Influence of artificial aging and ZrO2 nanoparticle-reinforced repair resin on the denture repair strength. J Clin Exp Dent 2020;12:e354-62.
  29. Gad MM, Rahoma A, Abualsaud R, Al-Thobity AM, Akhtar S, Helal MA, Al-Harbi FA. Impact of different surface treatments and repair material reinforcement on the flexural strength of repaired PMMA denture base material. Dent Mater J 2020;39:471-82. https://doi.org/10.4012/dmj.2018-436
  30. Li P, Kramer-Fernandez P, Klink A, Xu Y, Spintzyk S. Repairability of a 3D printed denture base polymer: Effects of surface treatment and artificial aging on the shear bond strength. J Mech Behav Biomed Mater 2021;114:104227. https://doi.org/10.1016/j.jmbbm.2020.104227
  31. Neshandar Asli H, Rahimabadi S, Babaee Hemmati Y, Falahchai M. Effect of different surface treatments on surface roughness and flexural strength of repaired 3D-printed denture base: An in vitro study. J Prosthet Dent 2021;126:595.e1-595.e8.
  32. ISO 1567. Dentistry-Denture base polymers. 2nd ed. International Standard Organization (ISO); Geneva; Switzerland, 1999.
  33. Kim JY, Pfeiffer P, Niedermeier W. Effect of laboratory procedures and thermocycling on the shear bond strength of resin-metal bonding systems. J Prosthet Dent 2003;90:184-9. https://doi.org/10.1016/S0022-3913(03)00261-0
  34. Kulak-Ozkan Y, Sertgoz A, Gedik H. Effect of thermocycling on tensile bond strength of six silicone-based, resilient denture liners. J Prosthet Dent 2003;89:303-10. https://doi.org/10.1067/mpr.2003.41
  35. Choi JE, Ng TE, Leong CKY, Kim H, Li P, Waddell JN. Adhesive evaluation of three types of resilient denture liners bonded to heat-polymerized, autopolymerized, or CAD-CAM acrylic resin denture bases. J Prosthet Dent 2018;120:699-705. https://doi.org/10.1016/j.prosdent.2018.01.032
  36. Alp G, Murat S, Yilmaz B. Comparison of flexural strength of different CAD/CAM PMMA-based polymers. J Prosthodont 2019;28:e491-e495. [Epub 2018 Jan 28] https://doi.org/10.1111/jopr.12755
  37. Harrison WM, Stansbury BE. The effect of joint surface contours on the transverse strength of repaired acrylic resin. J Prosthet Dent 1970;23:464-72. https://doi.org/10.1016/0022-3913(70)90014-4
  38. Chitchumnong P, Brooks SC, Stafford GD. Comparison of three- and four-point flexural strength testing of denture-base polymers. Dent Mater 1989;5:2-5. https://doi.org/10.1016/0109-5641(89)90082-1
  39. Andreopoulos AG, Polyzois GL. Repair of denture base resins using visible light-cured materials. J Prosthet Dent 1994;72:462-8. https://doi.org/10.1016/0022-3913(94)90115-5
  40. Barbosa DB, Monteiro DR, Barao VA, Pero AC, Compagnoni MA. Effect of monomer treatment and polymerisation methods on the bond strength of resin teeth to denture base material. Gerodontology 2009;26:225-31. https://doi.org/10.1111/j.1741-2358.2008.00262.x
  41. AlQahtani M, Haralur SB. Influence of different repair acrylic resin and thermocycling on the flexural strength of denture base resin. Medicina (Kaunas) 2020;56:50. https://doi.org/10.3390/medicina56020050
  42. Paleari AG, Marra J, Pero AC, Rodriguez LS, Ruvolo-Filho A, Compagnoni MA. Effect of incorporation of 2-tert-butylaminoethyl methacrylate on flexural strength of a denture base acrylic resin. J Appl Oral Sci 2011;19:195-9. https://doi.org/10.1590/S1678-77572011000300003
  43. Sasaki H, Hamanaka I, Takahashi Y, Kawaguchi T. Effect of reinforcement on the flexural properties of injection-molded thermoplastic denture base resins. J Prosthodont 2017;26:302-8. https://doi.org/10.1111/jopr.12419
  44. Pinto JR, Mesquita MF, Nobilo MA, Henriques GE. Evaluation of varying amounts of thermal cycling on bond strength and permanent deformation of two resilient denture liners. J Prosthet Dent 2004;92:288-93. https://doi.org/10.1016/j.prosdent.2004.06.005
  45. Gad MM, Rahoma A, Abualsaud R, Al-Thobity AM, Fouda SM. Effect of repair gap width on the strength of denture repair: an in vitro comparative study. J Prosthodont 2019;28:684-91. https://doi.org/10.1111/jopr.13091
  46. Sari F, Ustun O, Kirmali O. Efficacy of various pretreatments on the bond strength of denture teeth to denture base resins. Photomed Laser Surg 2018;36:214-20. https://doi.org/10.1089/pho.2017.4408
  47. Marra J, de Souza RF, Barbosa DB, Pero AC, Compagnoni MA. Evaluation of the bond strength of denture base resins to acrylic resin teeth: effect of thermocycling. J Prosthodont 2009;18:438-43. https://doi.org/10.1111/j.1532-849X.2009.00478.x
  48. Choi JJE, Uy CE, Plaksina P, Ramani RS, Ganjigatti R, Waddell JN. Bond strength of denture teeth to heatcured, cad/cam and 3d printed denture acrylics. J Prosthodont 2020;29:415-21. https://doi.org/10.1111/jopr.13125
  49. Aati S, Akram Z, Shrestha B, Patel J, Shih B, Shearston K, Ngo H, Fawzy A. Effect of post-curing light exposure time on the physico-mechanical properties and cytotoxicity of 3D-printed denture base material. Dent Mater 2022;38:57-67. https://doi.org/10.1016/j.dental.2021.10.011
  50. Shim JS, Kim JE, Jeong SH, Choi YJ, Ryu JJ. Printing accuracy, mechanical properties, surface characteristics, and microbial adhesion of 3D-printed resins with various printing orientations. J Prosthet Dent 2020;124:468-75. https://doi.org/10.1016/j.prosdent.2019.05.034
  51. Hada T, Kanazawa M, Iwaki M, Arakida T, Soeda Y, Katheng A, Otake R, Minakuchi S. Effect of printing direction on the accuracy of 3d-printed dentures using stereolithography technology. Materials (Basel) 2020;13:3405. https://doi.org/10.3390/ma13153405