Interfacial fracture toughness between resin-modified glass ionomer and dentin using three different surface treatments

Victor J Setien; Steven R Armstrong; James S Wefel

doi:10.1016/j.dental.2004.07.015

$Interfacial fracture toughness between resin-modified glass ionomer and dentin using three different surface treatments$

Journal article

Peer reviewed

Interfacial fracture toughness between resin-modified glass ionomer and dentin using three different surface treatments

Victor J Setien, Steven R Armstrong and James S Wefel

Dental materials, Vol.21(6), pp.498-504

2005

DOI: 10.1016/j.dental.2004.07.015

PMID: 15904691

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Abstract

To identify the long-term dentin–resin modified glass ionomer cement (RMGIC) interfacial fracture toughness (FT) using three different dentin surface treatments prior to RMGIC placement. Fuji II LC (GC America) was bonded to dentin using cavity conditioner (CC), Scotchbond Multipurpose (3M ESPE) complete system (SS), or Scotchbond etching and priming without adhesive (SP). Twenty-four teeth were used for each of the three groups. Two samples were obtained from each tooth and they were stored in artificial saliva (AS) or oil for 1- or 24-weeks before determining interfacial FT. The results were fit to Weibull distributions with log-rank and Wilcoxon tests for comparison of failure curves over time for each experimental condition. Statistical analysis was performed at a 0.05 level of significance. FT values in artificial saliva were as follows: 1 week SS=SP>CC, 6 months SS>SP=CC; in oil SS=SP=CC for both storage times. A significant decline in FT occurred between 1- and 24-week storage for SS and SP. Storage in oil, on the other hand tended to increase FT values for all groups. These observations support findings of hydrolytic degradation in adhesive resin-based surface treatments.

Glass ionomer

Dentine

Adhesion

Fracture toughness

Details

Title: Subtitle: Interfacial fracture toughness between resin-modified glass ionomer and dentin using three different surface treatments
Creators: Victor J Setien - Restorative Dentistry Department, Facultad de Odontologia, University of the Andes, Calle 24 entre Av 2 y 3, Merida 5101, Venezuela
Steven R Armstrong - College of Dentistry, University of Iowa, Iowa City, IA, USA
James S Wefel - College of Dentistry, University of Iowa, Iowa City, IA, USA
Resource Type: Journal article
Publication Details: Dental materials, Vol.21(6), pp.498-504
Publisher: Elsevier Ltd
DOI: 10.1016/j.dental.2004.07.015
PMID: 15904691
ISSN: 0109-5641
eISSN: 1879-0097
Language: English
Date published: 2005
Academic Unit: Operative Dentistry
Record Identifier: 9984065710602771

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