PMID- 23751532
OWN - NLM
STAT- MEDLINE
DCOM- 20140908
LR  - 20141120
IS  - 1002-0098 (Print)
IS  - 1002-0098 (Linking)
VI  - 48
IP  - 3
DP  - 2013 Mar
TI  - [Effect of a desensitizing polishing paste on bonding strength of two 
      self-etching adhesives to dentin].
PG  - 165-9
AB  - OBJECTIVE: To evaluate the effect of an 8% arginine-CaCO3 containing 
      desensitizing polishing paste on bonding strength of two self-etching adhesives 
      to dentin. METHODS: Thirty-six intact human premolars extracted for orthodontic 
      reasons were collected within 1 month after extraction and randomly assigned into 
      three groups using a table of random numbers (n = 12): specimens without any 
      treatment served as control. In the polishing powder group specimens were 
      polished with a slurry of pumice, and in the desensitizing polishing paste group 
      dentin surfaces of the sample teeth were treated with 8% arginine-CaCO3 
      containing desensitizing polishing paste. Then each group was divided into two 
      sub-groups using a table of random numbers in order to evaluate the bonding 
      strength of two self-etching adhesive agents (G-Bond, GC; Fl-Bond II, Shofu). 
      Microtensile bond strength test was conducted immediately and after 5000 
      thermocycling (n = 15). Scanning electron microscope (SEM) was used to evaluate 
      the occluding effect of the desensitizing polishing paste. RESULTS: In the 
      pre-thermocycling stage, there were no significant differences in Fl-Bond II 
      bonding strength among the three groups [control: (30.34 +/- 5.42) MPa, polishing 
      powder group: (29.72 +/- 5.16) MPa, desensitizing polishing paste group: (31.53 +/- 
      4.86) MPa] (P > 0.05). However there were significant differences among the three 
      groups in G-Bond bonding strength [control: (38.19 +/- 4.42) MPa, polishing powder 
      group: (36.47 +/- 4.72) MPa, desensitizing polishing paste group: (46.88 +/- 7.83) 
      MPa] (P < 0.05). After thermocycling process, there were no significant 
      differences in bonding strength among the three groups in both G-Bond groups and 
      Fl-Bond II groups. SEM observation showed that the desensitizing polishing paste 
      could occlude open dentinal tubules effectively, and the application of 
      self-etching adhesives could re-open the dentinal tubular orifices. An even layer 
      can be seen on the dentin surface treated with self-etching adhesive containing 
      functional monomers. CONCLUSIONS: The 8% arginine-CaCO3 containing desensitizing 
      polishing paste could effectively occlude dentinal tubules, thus may have 
      potential benefits in preventing post-operative sensitivity. Additionally, it had 
      no adverse effect on bonding strength of self-etching adhesives to dentin.
FAU - Liu, Si-ying
AU  - Liu SY
AD  - School of Stomatology, Wuhan University, Wuhan, China.
FAU - Wang, Ya-ke
AU  - Wang YK
FAU - Pei, Dan-dan
AU  - Pei DD
FAU - Huang, Cui
AU  - Huang C
FAU - Liu, Tian
AU  - Liu T
LA  - chi
PT  - English Abstract
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - China
TA  - Zhonghua Kou Qiang Yi Xue Za Zhi
JT  - Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese 
      journal of stomatology
JID - 8711066
RN  - 0 (Dentin Desensitizing Agents)
RN  - 0 (Dentin-Bonding Agents)
SB  - IM
MH  - Acid Etching, Dental
MH  - *Dentin Desensitizing Agents
MH  - *Dentin-Bonding Agents
MH  - Humans
MH  - In Vitro Techniques
MH  - Random Allocation
MH  - Tensile Strength
EDAT- 2013/06/12 06:00
MHDA- 2014/09/10 06:00
CRDT- 2013/06/12 06:00
PHST- 2013/06/12 06:00 [entrez]
PHST- 2013/06/12 06:00 [pubmed]
PHST- 2014/09/10 06:00 [medline]
PST - ppublish
SO  - Zhonghua Kou Qiang Yi Xue Za Zhi. 2013 Mar;48(3):165-9.