The impact of artificially caries-affected dentin on bond strength of multi-mode adhesives

The aim of this study is to evaluate the impact of dentin condition on bond strength of multi-mode adhesive systems (MMAS) to sound and artificially induced caries-affected dentin (CAD). Flat dentin surfaces of 112 bovine incisors were assigned to 16 subgroups ( = 7) according to the substrate condi...

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Bibliographic Details
Published in:Journal of conservative dentistry 2018-03, Vol.21 (2), p.136-141
Main Authors: Follak, Andressa Cargnelutti, Miotti, Leonardo Lamberti, Lenzi, Tathiane Larissa, Rocha, Rachel de Oliveira, Maxnuck Soares, Fabio Zovico
Format: Article
Language:English
Subjects:
Adhesives
Bond strength
Complications and side effects
Data processing
Dental adhesives
Dental caries
Dentin
Development and progression
Etching
Hypotheses
Incisors
Original
Physiological aspects
Statistical analysis
Studies
Systematic review
Teeth
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Summary:The aim of this study is to evaluate the impact of dentin condition on bond strength of multi-mode adhesive systems (MMAS) to sound and artificially induced caries-affected dentin (CAD). Flat dentin surfaces of 112 bovine incisors were assigned to 16 subgroups ( = 7) according to the substrate condition (sound and CAD- pH-cycling for 14 days); adhesive systems (Scotchbond Universal, All-Bond Universal, Prime and Bond Elect, Adper Single Bond Plus and Clearfil SE Bond) and etching strategy (etch-and-rinse and self-etch). All systems were applied according to the manufacturer's instructions, and resin composite restorations were built. After 24 h of water storage, specimens were sectioned (0.8 mm ) and submitted to the microtensile test. Data (MPa) were analyzed using three-way analysis of variance and Tukey's test (α = 0.05). MMAS presented similar bond strength values, regardless etching strategy in each substrate condition. Bond strength values were lower when MMAS were applied to CAD in the etch-and-rinse strategy. The etching strategy did not influence the bond strength of MMAS to sound or CAD, considering each substrate separately. However, CAD impact negatively on bond strength of MMAS in etch-and rinse mode.
ISSN:0972-0707
0974-5203
DOI:10.4103/JCD.JCD_234_17