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sdj-10062

Effect of calcium carbonate nanoparticles on the bonding strength of maxillofacial silicone to acrylic substrate    

**Fahd S. Ikram, *Salem A.L.Salem Al-Samarraie, **Jawad M. Mikaeel

*College of Dentistry, University of Sulaimani

**Hawler Medical University College of Dentistry, Erbil, Kurdistan region. Iraq.


DOI: https://doi.org/10.17656/sdj.10062

Abstract

The clinical life of a maxillofacial prosthesis averages about six months before it needs to be re-fabricated. Most of maxillofacial prosthesis attached to the acrylic resin via adhesive primers detached and have to be re-attached every few months. This in vitro study established to evaluate the effect of adding calcium carbonate nanoparticles at different concentrations on the bonding strength of maxillofacial silicone elastomer to the acrylic resin, before and after accelerated aging. Seventy samples were prepared, ten samples per each group. Each silicone sample sandwiched between two strips of acrylic resin via A-330-G adhesive primer. From each group five samples were undergoing accelerated aging. All samples were tested for shear bond strength by using Instron testing machine. Calcium carbonate nanoparticles have a significant effect on the shear bond strength of maxillofacial silicone to the acrylic resin and the groups that contain the lowest concentrations of calcium carbonate nanoparticles showed the most significant changes. It CaCO3 nanoparticles in trace amount can improve the shear bond strength of maxillofacial silicone elastomer to the acrylic resin after subjecting to accelerated aging.

Keywords: Maxillofacial silicone elastomers; calcium carbonate nanoparticles; A-330-G adhesive primer; acrylic

resin; shear bond strength.


References:

1.Wolfaardt JF, Cleaton-Jones P, Lownie J, et al.Biocompatibility testing of a silicone maxillofacial prosthetic elastomer: soft tissue study in primates. J Prosthet Dent 1992;68:331-338.

2.Chang TL, Garrett N, Roumanas E, et al. Treatment satisfaction with facial prostheses. J Prosthet Dent 2005;94:275-280.


3.    Taft RM, Cameron SM, Knudson RC, et al. The effect of primers and surface characteristics on the adhesion-in-peel force of silicone elastomers bonded to resin materials. J Prosthet Dent 1996;76:515-518.                                                                            

4.    Frangou MJ, Polyzois GL, Tarantili PA, et al: Bonding o silicone extra-oral elastomers to acrylic resin: the effect of primer composition. Eur J Prosthodont Retor Dent 2003;11:115-118. 

5.    Wolf B, Reitemeier B, Schmidt A, et al. In vitro testing of the bond between soft materials used for maxillofacial prostheses and cast titanium.    J  Prosthet Dent    2001;85:401-408.        

6.    Grant GT, Taft RM, Wheeler ST. Practical application of polyurethane and Velcro in maxillofacial prosthetics. J Prosthet Dent 2001;85:281-283.                                                                                      

7.    Kiat-Amnuay S, Waters PJ, Roberts D, et al. Adhesive retention  of silicone and chlorinated polyethylene for maxillofacial prostheses. J Prosthet Dent 2008 ;99:483-488.                                        

8.    Hatamleh MM and Watts DC. Bonding of maxillofacial silicone elastomers to an acrylic Substrate. Dent Mat 2010; 2; 6:387–395.          

9.    Polyzois GL, Frangou MJ . Bonding of silicone prosthetic   elastomers to three different denture resins. Int J Prosthodont

2002;15;6:535-538.                                                                         

10. Hatamleh MM, Watts DC. Fibre reinforcement enhances bonding of soft lining to acrylic dental and maxillofacial prostheses. Eur J Prosthodont Restor Dent 2008;16;3: 116-121.  

11. Shetty US and  Guttal SS. (). Evaluation of bonding efficiency  between facial silicone and acrylic resin using different bonding agents and surface alterations. J Adv Prosthodont 20124;121-126.

 

12. Rao, CNR and Cheetham, AK. Science and Technology of Nanomaterials,     J    Mater    Chem    2001;1;     12:    2887-294. 

13. Minami H, Suzuki S, Ohashi H, Kurashige H, Tanaka T. Effect of surface treatment on the bonding of an autopolymerizing soft denture liner to a denture base resin. Int J Prosthodont 2004;17:297–301.

14. McCabe JF, Carrick TE, Kamohara H. Adhesive bond  strength and compliance for denture soft lining materials. Biomaterials 2002;23:1347–1352. 

15. Waters MGJ, Jagger RG, Winter RW. Effect of surface modified fillers on the water-absorption of a (RTV) silicone denture soft lining material. J of Dent 1996;24:297-300.


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