International Journal of Prosthodontics and Restorative Dentistry

Register      Login

VOLUME 13 , ISSUE 2 ( April-June, 2023 ) > List of Articles


Evaluation of the Peel Bond Strength of a Room Temperature Vulcanizing Maxillofacial Silicone When Bonded to Three Different High-impact Heat-cured Acrylic Resins: An In Vitro Comparative Study

Aishwarya Shastry, Prema Balehonnur, Vishwananth S Krishnappa, Anoop Nair, Kalavathi Muniyappa, Meghana M Yadav

Keywords : Heat-cure acrylic resin, High-impact acrylic resin, Lucitone-199, Maxillofacial silicone, Peel bond strength, Primer A330G

Citation Information : Shastry A, Balehonnur P, Krishnappa VS, Nair A, Muniyappa K, Yadav MM. Evaluation of the Peel Bond Strength of a Room Temperature Vulcanizing Maxillofacial Silicone When Bonded to Three Different High-impact Heat-cured Acrylic Resins: An In Vitro Comparative Study. Int J Prosthodont Restor Dent 2023; 13 (2):76-80.

DOI: 10.5005/jp-journals-10019-1407

License: CC BY-NC 4.0

Published Online: 28-06-2023

Copyright Statement:  Copyright © 2023; The Author(s).


Purpose: The purpose of the study was to evaluate and compare the peel bond strength of a room temperature vulcanizing (RTV) maxillofacial silicone bonded to three different high-impact heat-cure acrylic resins. Materials and methods: A total of 80 standardized rectangular specimens of dimensions 75 × 10 × 6 mm were fabricated. The specimens were categorized into four groups (n = 20 each) as group I—conventional heat-cure acrylic resin (Trevalon) and three brands of high-impact heat-cure acrylic resins (group II: Lucitone 199, group III: Acralyn H, and group IV: Acryl Hi). Each standardized specimen consisted of a rectangular acrylic component to which silicone was bonded using a primer. Peel bond strength between the acrylic and silicone was measured using a universal testing machine. Kruskal–Wallis H test was performed to compare the peel bond strength among all groups, followed by Dunn post hoc test to find the significant difference for pairwise comparison. Results: Standardized test specimens belonging to group II (Lucitone 199), bonded to RTV maxillofacial silicone, showed significantly (p = 0.013) greater peel bond strength (0.0372 ± 0.013 MPa) among all the groups. The test specimens of group III (Acralyn H, 0.0213 ± 0.007 MPa), group I (Trevalon, 0.0185 ± 0.009 MPa), and group IV (Acryl Hi, 0.0148 ± 0.007 MPa) showed peel bond strength to RTV silicones in decreasing order. Conclusion: The high-impact heat-cure acrylic resin (Lucitone 199) had significantly higher bond strength to maxillofacial silicones with the use of a primer than other acrylic resins used in the study. The other two brands of high-impact heat-cure acrylic resins showed comparable peel bond strength to that of conventional heat-cure acrylic resins. Therefore, high-impact heat-cure acrylic resins can be used as alternatives to conventional heat-cure acrylic resins in conjunction with RTV silicones in the fabrication of maxillofacial prostheses.

  1. Prakash P, Bahri R, Bhandari SK. Maxillofacial defects: impact on psychology and esthetics. In Beauty Cosmetic Science, Cultural Issues and Creative Developments 2021 May 12. IntechOpen.
  2. Grieder A. Psychologic aspects of prosthodontics. J Prosthet Dent 1973;30(5):736–744. DOI: 10.1016/0022-3913(73)90224-2
  3. Depprich R, Naujoks C, Lind D, et al. Evaluation of the quality of life of patients with maxillofacial defects after prosthodontic therapy with obturator prostheses. Int journal J Oral Maxillofac Surg 2011;40(1): 71–79. DOI: 10.1016/j.ijom.2010.09.019
  4. Mitra A, Choudhary S, Garg H, et al. Maxillofacial prosthetic materials-an inclination towards silicones. J Clin Diagn Res 2014;8(12):ZE08–ZE13. DOI: 10.7860/JCDR/2014/9229.5244
  5. Kanter JC. The use of RTV silicones in maxillofacial prosthetics. J Prosthet Dent 1970;24(6):646–653. DOI: 10.1016/0022-3913(70)90101-0
  6. Haddad MF, Goiato MC, Santos DM, et al. Bond strength between acrylic resin and maxillofacial silicone. J Appl Oral Sci 2012;20(6): 649–654. DOI: 10.1590/s1678-77572012000600010
  7. Shetty US, Guttal SS. Evaluation of bonding efficiency between facial silicone and acrylic resin using different bonding agents and surface alterations. J Adv Prosthodont 2012;4(3):121–126. DOI: 10.4047/jap.2012.4.3.121
  8. Al-Shammari FA. Effect of different primers on the peel bond strength between silicone elastomer and acrylic resins. Br J Med Med Res 2015;8(12):1034–1044. DOI: 10.9734/BJMMR/2015/17897
  9. Karakoca S, Aydin C, Yilmaz H, et al. Retrospective study of treatment outcomes with implant-retained extraoral prostheses: survival rates and prosthetic complications. J Prosthet Dent 2010;103(2):118–126. DOI: 10.1016/S0022-3913(10)60015-7
  10. Uzun G, Hersek N. Comparison of the fracture resistance of six denture base acrylic resins. J Biomater Appl 2002;17(1):19–29. DOI: 10.1177/0885328202017001597
  11. Ajaj-Alkordy NM, Alsaadi MH. Elastic modulus and flexural strength comparisons of high-impact and traditional denture base acrylic resins. Saudi Dent J 2014;26(1):15–18. DOI: 10.1016/j.sdentj.2013.12.005
  12. Narendra R, Reddy NS, Reddy SD, et al. A comparative evaluation of impact strength of conventionally heat-cured and high impact heat-cured polymethyl methacrylate denture base resins: an in vitro study. J Contemp Dent Pract 2013;14(6):1115–1125. DOI: 10.5005/jp-journals-10024-1461
  13. Raheem Z. (2019). Standard Test Method for Peel Resistance of Adhesives (T-Peel Test) 1.
  14. Hatamleh MM, Watts DC. Bonding of maxillofacial silicone elastomers to an acrylic substrate. Dent Mater 2010;26(4):387–395. DOI: 10.1016/
  15. Tanveer W, Wonglamsam A, Tancharoen S, et al. Evaluation of peel bond strength between plexiglas acrylic (PMMA) and maxillofacial silicone using three different primers. M Dent J 2017;37(3):263–272.
  16. Sanohkan S, Kukiattrakoon B, Peampring C. Tensile bond strength of facial silicone and acrylic resin using different primers. J Orofac Sci 2017;9(1):48. DOI: 10.4103/0975-8844.207944
  17. Farooqui R, Aras MA, Chitre V, et al. An in vitro study to compare the influence of two different primers on the peel bond strength between a maxillofacial silicone material and an acrylic resin material versus a composite resin material. J Indian Prosthodont Soc 2021;21(3):287–294. DOI: 10.4103/jips.jips_80_21
  18. Patel H, CM RK, AA P, et al. The effect of primer on bond strength of silicone prosthetic elastomer to polymethylmethacrylate: an in vitro study. J Clin Diagn Res 2015;9(3):ZC38–ZC42. DOI: 10.7860/JCDR/2015/11217.5704
  19. Mittal M, Anil Kumar S, Sandhu HS, et al. Comparative evaluation of the tensile bond strength of two silicone-based denture liners with denture base resins. Med J Armed Forces India 2016;72(3):258–264. DOI: 10.1016/j.mjafi.2015.03.004
  20. Chauhan M, Narayan AI, Ginjupalli K, et al. An in vitro evaluation of tensile bond strength of commercially available temporary soft liners to different types of denture base resins. J Nat Sci Biol Med 2018;9(2):263. DOI: 10.4103/jnsbm.JNSBM_38_18
  21. Artopoulou II, Chambers MS, Zinelis S, et al. Peel strength and interfacial characterization of maxillofacial silicone elastomers bonded to titanium. Dent Mater 2016;32(7):e137–e147. DOI: 10.1016/
  22. Al-Athel MS, Jagger RG, Jerolimov V. Bond strength of resilient lining materials to various denture base resins. Int J Prosthodont 1996;9(2):167–170.
  23. Wemken G, Burkhardt F, Spies BC, et al. Bond strength of conventional, subtractive, and additive manufactured denture bases to soft and hard relining materials. Dent Mater 2021;37(5):928–938. DOI: 10.1016/
  24. O'Brien WJ. Dental materials and their selection. 2002. Quintessence.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.