PURPOSE: The aims of this study were; to compare the shear bond strength values of resin-based luting cements using etch-and-rinse, self-etching or self-adhesive techniques and to evaluate the effects of pretreatment with 0.2%, and 2% chlorhexidine (CHX) solutions on the bonding stability to dentin. MATERIALS AND METHODS: Ninety specimens were divided into 9 groups of equal sample size (0.2% CHX, 2% CHX and no CHX application groups). Variolink N (multi-step etch-and-rinse technique), Panavia F2.0 (self-etching technique), or RelyX U200 (self-adhesive technique) resin-based luting cement was applied. All specimens were subjected to shear bond strength test (SBS) after bonding procedure. The mode of failure was analyzed by using a stereomicroscope. RESULTS: There were no significant differences among study groups for the dentin treatment factor. However, for luting cement factor, significant differences were found and Variolink N showed the highest SBS values. CONCLUSION: CHX application has no immediate effect on the SBS values of any resin cements. Despite the development of simplified cementation techniques, etch-and-rinse technique is still the most reliable technique because of its high bond strength to dentin.
PURPOSE: The aims of this study were; to compare the shear bond strength values of resin-based luting cements using etch-and-rinse, self-etching or self-adhesive techniques and to evaluate the effects of pretreatment with 0.2%, and 2% chlorhexidine (CHX) solutions on the bonding stability to dentin. MATERIALS AND METHODS: Ninety specimens were divided into 9 groups of equal sample size (0.2% CHX, 2% CHX and no CHX application groups). Variolink N (multi-step etch-and-rinse technique), Panavia F2.0 (self-etching technique), or RelyX U200 (self-adhesive technique) resin-based luting cement was applied. All specimens were subjected to shear bond strength test (SBS) after bonding procedure. The mode of failure was analyzed by using a stereomicroscope. RESULTS: There were no significant differences among study groups for the dentin treatment factor. However, for luting cement factor, significant differences were found and Variolink N showed the highest SBS values. CONCLUSION: CHX application has no immediate effect on the SBS values of any resin cements. Despite the development of simplified cementation techniques, etch-and-rinse technique is still the most reliable technique because of its high bond strength to dentin.
Authors: Jan De Munck; Marcos Vargas; Kirsten Van Landuyt; Kazuhiro Hikita; Paul Lambrechts; Bart Van Meerbeek Journal: Dent Mater Date: 2004-12 Impact factor: 5.304
Authors: Yiu-Fai Mak; Shirley C N Lai; Gary S P Cheung; Alex W K Chan; Franklin R Tay; David H Pashley Journal: Dent Mater Date: 2002-12 Impact factor: 5.304
Authors: Masatoshi Nakajima; Yuichi Kitasako; Mamiko Okuda; Richard M Foxton; Junji Tagami Journal: J Biomed Mater Res B Appl Biomater Date: 2005-02-15 Impact factor: 3.368