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Bonding efficiency and interfacial morphology of one-bottle adhesives to contaminated dentin surfaces.
Am J Dent 1998; 11(6):281-5AJ

Abstract

PURPOSE

To evaluate the effect of dentin contamination with water, saliva or blood on the bond strength of one-bottle dentin adhesives and interfacial morphology.

MATERIALS AND METHODS

The tested materials were Scotchbond 1, One-Step, Prime & Bond 2.1 and Syntac SC. The three-step bonding system Scotchbond Multi-Purpose Plus (SMP) was also included as control. Extracted human molars were used. For each tooth, enamel was removed by sectioning with a diamond saw and a smear layer was created by grinding on wet 600 grit SiC paper. Before the adhesive materials were applied and cured, the dentin was dried with air for 3 s, dried with a damp cotton pellet, or contaminated with saliva or blood. Cylinders of the composite resin Z100 were applied onto the adhesive dentin surfaces using Teflon split molds. After 24-hour water storage, the shear bond strength of the specimens was determined using an Instron testing machine at a crosshead speed of 0.5 mm/min. The morphology of the dentin-resin interface was examined using SEM.

RESULTS

Wetting of the substrate significantly increased the bond strength produced by One-Step, while the bond strength of Syntac SC was significantly decreased. The bond strength produced by Scotchbond 1, Prime & Bond 2.1 and SMP showed a slight increase or decrease, which was not significant. Saliva contamination decreased the bond strength significantly of only Syntac SC, while blood contamination significantly decreased the bond strengths of all materials. SEM evaluation of the dentin-resin interface showed a relation between resin tag formation and bond strength.

Authors+Show Affiliations

Department of Restorative Dentistry, Faculty of Dentistry, University of Tanta, Egypt.No affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

10477979

Citation

Abdalla, A I., and C L. Davidson. "Bonding Efficiency and Interfacial Morphology of One-bottle Adhesives to Contaminated Dentin Surfaces." American Journal of Dentistry, vol. 11, no. 6, 1998, pp. 281-5.
Abdalla AI, Davidson CL. Bonding efficiency and interfacial morphology of one-bottle adhesives to contaminated dentin surfaces. Am J Dent. 1998;11(6):281-5.
Abdalla, A. I., & Davidson, C. L. (1998). Bonding efficiency and interfacial morphology of one-bottle adhesives to contaminated dentin surfaces. American Journal of Dentistry, 11(6), pp. 281-5.
Abdalla AI, Davidson CL. Bonding Efficiency and Interfacial Morphology of One-bottle Adhesives to Contaminated Dentin Surfaces. Am J Dent. 1998;11(6):281-5. PubMed PMID: 10477979.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bonding efficiency and interfacial morphology of one-bottle adhesives to contaminated dentin surfaces. AU - Abdalla,A I, AU - Davidson,C L, PY - 1999/9/9/pubmed PY - 1999/9/9/medline PY - 1999/9/9/entrez SP - 281 EP - 5 JF - American journal of dentistry JO - Am J Dent VL - 11 IS - 6 N2 - PURPOSE: To evaluate the effect of dentin contamination with water, saliva or blood on the bond strength of one-bottle dentin adhesives and interfacial morphology. MATERIALS AND METHODS: The tested materials were Scotchbond 1, One-Step, Prime & Bond 2.1 and Syntac SC. The three-step bonding system Scotchbond Multi-Purpose Plus (SMP) was also included as control. Extracted human molars were used. For each tooth, enamel was removed by sectioning with a diamond saw and a smear layer was created by grinding on wet 600 grit SiC paper. Before the adhesive materials were applied and cured, the dentin was dried with air for 3 s, dried with a damp cotton pellet, or contaminated with saliva or blood. Cylinders of the composite resin Z100 were applied onto the adhesive dentin surfaces using Teflon split molds. After 24-hour water storage, the shear bond strength of the specimens was determined using an Instron testing machine at a crosshead speed of 0.5 mm/min. The morphology of the dentin-resin interface was examined using SEM. RESULTS: Wetting of the substrate significantly increased the bond strength produced by One-Step, while the bond strength of Syntac SC was significantly decreased. The bond strength produced by Scotchbond 1, Prime & Bond 2.1 and SMP showed a slight increase or decrease, which was not significant. Saliva contamination decreased the bond strength significantly of only Syntac SC, while blood contamination significantly decreased the bond strengths of all materials. SEM evaluation of the dentin-resin interface showed a relation between resin tag formation and bond strength. SN - 0894-8275 UR - https://www.unboundmedicine.com/medline/citation/10477979/Bonding_efficiency_and_interfacial_morphology_of_one_bottle_adhesives_to_contaminated_dentin_surfaces_ DB - PRIME DP - Unbound Medicine ER -