Effect of Saliva Contamination on the Bond Strength of Dentin Adhesives to Central and Peripheral Primary Dentin in vitro

Abstract This study evaluated in vitro the influence of a temporary filling {zinc oxide-eugenol (ZOE)} and two pulpotomy agents {formocresol (FC) and ferric sulfate (FS)} on shear bond strength (SBS) of two dentin adhesives to the dentin of primary molars. A total of 80 dentin surfaces were prepared and randomly allocated into 10 groups of 8 specimens each. Groups were subjected to different treatments, which included covering with a paste of ZOE mixed at different powder:liquid (P:L) ratios, placement on a gauze soaked in FC or FS, or they received no pretreatment and served as a control. XRVTM Herculite® composite cylinders were bonded to dentin surfaces using Prime and Bond® NT adhesive resin or Opti Bond Solo Plus adhesive resin. SBSs were determined using the lnstron® testing machine running at a crosshead speed of 0.5 mm/min. The use of ZOE mixed at the lower P:L ratio of 10g:2g significantly decreased the values of SBS of the two adhesives. The use of two pulpotomy agents (FC and FS) significantly decreased the SBS of the two adhesives. The bond strength to dentin of primary teeth was influenced by the pulpotomy agents used and the ZOE P:L ratio but not by the adhesive system used. Citation Salama FS. Influence of Zinc-Oxide Eugenol, Formocresol, and Ferric Sulfate on Bond Strength of Dentin Adhesives to Primary Teeth. J Contemp Dent Pract 2005 August;(6)3:014-021.

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The Effect of Saliva Contamination on Shear Bond Strength of Two Universal Bonding Agents-An in vitro Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2018/35187.11404 ◽

2018 ◽

Author(s):

Anuja Sanjay Kulkarni ◽

Sharad Kokate ◽

Vibha Hegde ◽

Ushaina Fanibunda

Keyword(s):

Bond Strength ◽

Shear Bond Strength ◽

In Vitro Study ◽

Vitro Study ◽

Bonding Agents ◽

Saliva Contamination

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Effect of Artificial Saliva Contamination on Bond Strength to Pulp Chamber Dentin

European Journal of Dentistry ◽

10.1055/s-0039-1697360 ◽

2008 ◽

Vol 02 (02) ◽

pp. 086-090 ◽

Cited By ~ 7

Author(s):

Hale Ară ◽

Nazmiye Dönmez ◽

Sema Belli

Keyword(s):

Bond Strength ◽

Artificial Saliva ◽

In Vitro Study ◽

Adhesive System ◽

Control Group ◽

Pulp Chamber ◽

Significant Difference ◽

Group 2 ◽

Saliva Contamination

ABSTRACTObjectives: The purpose of this in vitro study was to evaluate the effect of artificial saliva contamination on microtensile bond strength to pulp chamber dentin.Methods: Clearfil SE Bond (SEB) (Kuraray, JAPAN) adhesive system and Clearfil Photo Posterior (CPP) (Kuraray, JAPAN) composite resin were used. Twenty extracted caries-free human molar teeth were randomly distributed into four groups. Apart from a control group without contamination (Group 1), primed dentin surfaces were contaminated with artificial saliva (10 s), rinsed, dried, reprimed and bonded (Group 2), coated with adhesive, contaminated with artificial saliva, rinsed, dried, bonding procedures were repeated (Group 3), coated with adhesive, light cured, contaminated with saliva, rinsed, dried, treated with SE primer (SEP) and SEB (Group 4).After 24 hrs, the teeth were prepared for microtensile bond testing and tensile bond strength was measured (1mm/min). The data was calculated as MPa and analyzed using one-way ANOVA and Duncan test (P<.05).Results: The results indicated that Group 2 showed lowest bond strength when compared to the others (P<.05). No statistically significant difference was found between Groups 3 and 4 (P>.05).Conclusions: It was concluded that contamination during priming procedure has a negative effect on bond strength (P<.05). Although contamination of the uncured adhesive was not critical in this study (P>.05) any kind of contamination of the bonding area should, in principle, be avoided. (Eur J Dent 2008;2:86-90)

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