Tensile bond strengths of silicone soft liners to two chemically different denture base resins

Bayati, O.H.; Yunus, N.; Ahmad, S.F. (2012) Tensile bond strengths of silicone soft liners to two chemically different denture base resins. International Journal of Adhesion and Adhesives, 34. pp. 32-37. ISSN 0143-7496

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      Silicone-based soft liners can be useful for patients who have difficulty to tolerate the hard-based dentures. However lack of adhesion to the denture base resin can be a problem that limits their clinical use. This study evaluated the tensile bond strengths (TBS) of four silicone soft liners (GC Soft, GC XSoft, Silagum, Mollosil) to two chemically different denture base resins, polymethyl methacrylate (PMMA) and urethane dimethacrylate (UDMA). Specimen consisted of soft liner material self-cured between two square plates of cured denture base resin measuring 20 x 20 x 4 mm. The circular bonding area of soft liner to each plate was 10 mm in diameter. Proprietary primer was applied to the surface of the denture base specimens before bonding following the manufacturers' recommendations. Ten specimens for each denture base-soft liner combination were prepared and tested under tension on a Shimadzu Universal Testing Machine at a cross head speed of 5 mm/min. The mode of failure was determined using a stereo-microscope at magnification of 10x. Two- and one-way ANOVA and post-hoc Dunnett-T3 and t-test were used for statistical analysis. There were significant differences in TBS values for the effect of denture base resins, soft liner and their interaction (p < 0.05). The TBS of soft liners to PMMA was significantly higher than to UDMA denture base resins except for Silagum where no significant difference was observed. A mixed mode of failure was more common for all soft liners bonded to PMMA except for Silagum while adhesive failure was more predominant in the UDMA group.

      Item Type: Article
      1. Bayati, O.H.
      2. Yunus, N.
      3. Ahmad, S.F.
      Journal or Publication Title: International Journal of Adhesion and Adhesives
      Additional Information: ISI Document Delivery No.: 911VY Times Cited: 0 Cited Reference Count: 25 Cited References: Ahmad F, 2009, J PROSTHODONT, V18, P596, DOI 10.1111/j.1532-849X.2009.00481.x AlAthel MS, 1996, J PROSTHET DENT, V76, P535, DOI 10.1016/S0022-3913(96)90014-1 Ali Isma Liza, 2008, J Prosthodont, V17, P545, DOI 10.1111/j.1532-849X.2008.00357.x American Society for Testing and Materials, 1998, D42981 ASTM, pD429 Aydin AK, 1999, DENT MATER, V15, P211, DOI 10.1016/S0109-5641(99)00038-X Diaz-Arnold AM, 2008, J PROSTHET DENT, V100, P47, DOI 10.1016/S0022-3913(08)60136-5 Jagger DC, 1997, BRIT DENT J, V182, P313 Jagger RG, 2002, INT J PROSTHODONT, V15, P55 KAWANO F, 1991, J PROSTHET DENT, V65, P567, DOI 10.1016/0022-3913(91)90301-C Kawano F, 1999, J ORAL REHABIL, V26, P962, DOI 10.1046/j.1365-2842.1999.00467.x KAWANO F, 1992, J PROSTHET DENT, V68, P368, DOI 10.1016/0022-3913(92)90347-D Kimoto S, 2006, INT J PROSTHODONT, V19, P593 Kimoto S, 2007, J ORAL REHABIL, V34, P862, DOI 10.1111/j.1365-2842.2007.01728.x Kulak-Ozkan Y, 2003, J PROSTHET DENT, V89, P303, DOI 10.1067/mpr.2003.41 KUTAY O, 1994, J PROSTHET DENT, V71, P525, DOI 10.1016/0022-3913(94)90194-5 Machado C, 2007, J DENT, V35, P930, DOI 10.1016/j.jdent.2007.09.006 McCabe JF, 2002, BIOMATERIALS, V23, P1347, DOI 10.1016/S0142-9612(01)00253-8 Minami H, 2004, INT J PROSTHODONT, V17, P297 Murata H, 2001, J ORAL REHABIL, V28, P918, DOI 10.1046/j.1365-2842.2001.00736.x Mutluay MM, 2007, DENT MATER, V23, P1373, DOI 10.1016/j.dental.2006.11.014 Pfeiffer P, 2008, J PROSTHET DENT, V100, P292, DOI 10.1016/S0022-3913(08)60209-7 Sertgoz A, 2002, J ORAL REHABIL, V29, P583, DOI 10.1046/j.1365-2842.2002.00888.x Shimizu Hiroshi, 2008, J Prosthodont, V17, P451, DOI 10.1111/j.1532-849X.2008.00326.x Tanimoto Y, 2009, ACTA BIOMATER, V5, P764, DOI 10.1016/j.actbio.2008.08.021 Wright P S, 1976, J Dent, V4, P247, DOI 10.1016/S0300-5712(76)80001-2 Bayati, Omar Hilal Yunus, Norsiah Ahmad, Siti Fauzza University of Malaya, Kuala Lumpur, Malaysia This study was supported by postgraduate research funding, University of Malaya, Kuala Lumpur, Malaysia. Elsevier sci ltd Oxford
      Uncontrolled Keywords: Composite Soft liner Tensile bond Surface treatment Denture lining materials
      Subjects: R Medicine > RK Dentistry
      Divisions: Faculty of Dentistry > Dept of Conservative Dentistry
      Depositing User: Mr Ahmad Azwan Azman
      Date Deposited: 23 Oct 2012 12:11
      Last Modified: 23 Oct 2012 12:11
      URI: http://eprints.um.edu.my/id/eprint/3795

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