|
KMID : 0362220130400040335
|
|
Journal of The Korean Research Society for Dental Materials
2013 Volume.40 No. 4 p.335 ~ p.343
|
|
|
Effect of Primer in Two step Self-etching Adhesives on the bond strength between Pre-etched Enamel and a Composite
|
|
Kim Jee-Hoon
Lim Ho-Nam
|
|
|
Abstract
|
|
|
|
The purpose of this study was to evaluate the composite-to-enamel bond of two step self-etching adhesive systems on pre-etched enamel with and without the application of their primers. The enamel of 80 bovine incisors was ground(600-grit SiC paper) flat and randomly divided into eight groups(n = 20). After 15 sec phosphoric acid(PA) pre-etching, the enamel was bonded with UniFil Bond(GC) or Clearfil SE Bond(Kuraray) according to manufacturer’s instructions or without primer. The shear bond strengths were measured before and after thermocycling(5000 times). For evaluation of resin tag penetration and average roughness(Ra), extra specimens were observed under SEM and optical surface roughness tester. Priming the pre-etched enamel led to the formation of more shallow resin tags and reduced the value of Ra. The use of primer of self-etching adhesives did not affect the shear bond strength (p>0.05) Thermocycling did not affect the shear bond strength (p>0.05)
|
|
|
KEYWORD
|
|
|
Enamel, Pre-etching, Primer, Self-etching adhesive
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|