Tags

Type your tag names separated by a space and hit enter

Bonding indirect resin composites to metal: part 2. Effect of alloy surface treatment on elemental composition of alloy and bond strength.
Int J Prosthodont. 2004 Jan-Feb; 17(1):77-82.IJ

Abstract

PURPOSE

This laboratory study compared the effect of different surface treatments of a medium-gold, high-noble alloy on the shear bond strength of an indirect, highly filled resin composite to the alloy and on the elemental composition of the alloy surface.

MATERIALS AND METHODS

Ninety disks, cast in a medium-gold, high-noble porcelain-fused-to-metal alloy (V-Deltaloy), received three different surface treatments: sandblasting with 50-microm Al2O3 (group 1) or 250-microm Al2O3 (group 2) and chemical agents, or with 250-microm Al2O3 without chemical agents (group 3) prior to bonding of an indirect resin composite (Artglass, and chemical agents Siloc-pre and Siloc-bond). The specimens were tested in shear, half of them after 24-hour dry storage at room temperature and the rest after 10-day storage in normal saline solution at 37 degrees C and thermocycling (2,500 cycles between 5 and 55 degrees C). Morphologic and qualitative changes on the alloy surface after sandblasting with 50- or 250-microm Al2O3 were examined by SEM using EDS analysis and compared with polished specimens. Statistical analysis was performed using two-factor ANOVA.

RESULTS

The mean shear bond strengths (in MPa) after dry or wet storage and thermocycling were 29 and 24 for group 1, 21 and 18 for group 2, and 17 and 12 for group 3, respectively; there was a statistically significant difference among the groups. Sandblasting of the alloy surface led to statistically significant changes in elemental composition. These changes were of greater magnitude when 50-microm Al2O3 particles were used.

CONCLUSION

The particle size used for sandblasting influences the shear bond strength between a high-noble alloy and a highly filled indirect resin composite, as well as the elemental composition of the alloy surface.

Authors+Show Affiliations

Department of Fixed Prosthesis and Implant Prosthodontics, School of Dentistry, Aristotle University, Thessaloniki, Greece. Lpetridis@the.forthnet.grNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15008237

Citation

Petridis, Haralampos, et al. "Bonding Indirect Resin Composites to Metal: Part 2. Effect of Alloy Surface Treatment On Elemental Composition of Alloy and Bond Strength." The International Journal of Prosthodontics, vol. 17, no. 1, 2004, pp. 77-82.
Petridis H, Garefis P, Hirayama H, et al. Bonding indirect resin composites to metal: part 2. Effect of alloy surface treatment on elemental composition of alloy and bond strength. Int J Prosthodont. 2004;17(1):77-82.
Petridis, H., Garefis, P., Hirayama, H., Kafantaris, N. M., & Koidis, P. T. (2004). Bonding indirect resin composites to metal: part 2. Effect of alloy surface treatment on elemental composition of alloy and bond strength. The International Journal of Prosthodontics, 17(1), 77-82.
Petridis H, et al. Bonding Indirect Resin Composites to Metal: Part 2. Effect of Alloy Surface Treatment On Elemental Composition of Alloy and Bond Strength. Int J Prosthodont. 2004 Jan-Feb;17(1):77-82. PubMed PMID: 15008237.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bonding indirect resin composites to metal: part 2. Effect of alloy surface treatment on elemental composition of alloy and bond strength. AU - Petridis,Haralampos, AU - Garefis,Pavlos, AU - Hirayama,Hiroshi, AU - Kafantaris,Nikolaos M, AU - Koidis,Petros T, PY - 2004/3/11/pubmed PY - 2004/4/16/medline PY - 2004/3/11/entrez SP - 77 EP - 82 JF - The International journal of prosthodontics JO - Int J Prosthodont VL - 17 IS - 1 N2 - PURPOSE: This laboratory study compared the effect of different surface treatments of a medium-gold, high-noble alloy on the shear bond strength of an indirect, highly filled resin composite to the alloy and on the elemental composition of the alloy surface. MATERIALS AND METHODS: Ninety disks, cast in a medium-gold, high-noble porcelain-fused-to-metal alloy (V-Deltaloy), received three different surface treatments: sandblasting with 50-microm Al2O3 (group 1) or 250-microm Al2O3 (group 2) and chemical agents, or with 250-microm Al2O3 without chemical agents (group 3) prior to bonding of an indirect resin composite (Artglass, and chemical agents Siloc-pre and Siloc-bond). The specimens were tested in shear, half of them after 24-hour dry storage at room temperature and the rest after 10-day storage in normal saline solution at 37 degrees C and thermocycling (2,500 cycles between 5 and 55 degrees C). Morphologic and qualitative changes on the alloy surface after sandblasting with 50- or 250-microm Al2O3 were examined by SEM using EDS analysis and compared with polished specimens. Statistical analysis was performed using two-factor ANOVA. RESULTS: The mean shear bond strengths (in MPa) after dry or wet storage and thermocycling were 29 and 24 for group 1, 21 and 18 for group 2, and 17 and 12 for group 3, respectively; there was a statistically significant difference among the groups. Sandblasting of the alloy surface led to statistically significant changes in elemental composition. These changes were of greater magnitude when 50-microm Al2O3 particles were used. CONCLUSION: The particle size used for sandblasting influences the shear bond strength between a high-noble alloy and a highly filled indirect resin composite, as well as the elemental composition of the alloy surface. SN - 0893-2174 UR - https://www.unboundmedicine.com/medline/citation/15008237/Bonding_indirect_resin_composites_to_metal:_part_2__Effect_of_alloy_surface_treatment_on_elemental_composition_of_alloy_and_bond_strength_ DB - PRIME DP - Unbound Medicine ER -