PMID- 23135111
OWN - NLM
STAT- MEDLINE
DCOM- 20150708
LR  - 20181202
IS  - 1006-7248 (Print)
IS  - 1006-7248 (Linking)
VI  - 21
IP  - 4
DP  - 2012 Aug
TI  - [Effect of different orthodontic interproximal reduction methods on the enamel].
PG  - 384-8
AB  - PURPOSE: To find a suitable interproximal enamel (IER) reduction method for 
      clinical use by pH cycles in vitro. METHODS: 50 human premolars extracted for 
      orthodontic reasons were collected for the experiment. After removal of the 
      roots, the crowns were split vertically into two halves with wafer-thin wheel 
      blade. Then the 100 samples were randomly divided into 5 groups, 20 samples for 
      each group. The enamel in each group was reduced with different IER methods: 
      group I, stripping strip; group II, stripping disk; group III, stripping strip 
      with polishing system and 35% orthophosphoric acid; group IV, stripping disk with 
      polishing system and 35% orthophosphoric acid; group V, no treatment control 
      group. All the samples were treated with pH cycles in vitro for 30 days. The 
      microhardness of enamel surface of all samples was detected by microhardness 
      testing machine. The enamel surface morphology of microstructure was examined by 
      scanning electron microscopy(SEM).The data was analyzed with SPSS13.0 software 
      package. RESULTS: 1.ANOVA detected statistically significant differences between 
      groups. The post SNK-q test showed that there was no significant difference 
      between group I and group II, between group III and group IV(P>0.05); But there 
      was significant difference between group I and group III, group I and group IV, 
      group II and group III, group II and group IV(P<0.01). And there was significant 
      difference between group I and group V, group II and group V, group III and group 
      V, group IV and group V(P<0.05). 2.From naked eye and SEM, there was no distinct 
      difference between the two chemical polishing groups, but better than the others. 
      CONCLUSIONS: 1.There is no significant difference between strip and disk after 
      IER. 2.Chemical polishing group is better than the others after IER. 3.The 
      scratches of the enamel surface caused by IER are hardly repaired even after 
      remineralization.
FAU - Shu, Chuan-liang
AU  - Shu CL
AD  - Department of Stomatology, No.401 Hospital of PLA, Qingdao 266071, Shandong 
      Province, China. 33647904@qq.com
FAU - Liu, Xin-qiang
AU  - Liu XQ
FAU - Wang, Gui-feng
AU  - Wang GF
LA  - chi
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - China
TA  - Shanghai Kou Qiang Yi Xue
JT  - Shanghai kou qiang yi xue = Shanghai journal of stomatology
JID - 101090220
RN  - 0 (Phosphoric Acids)
RN  - E4GA8884NN (phosphoric acid)
SB  - IM
MH  - Bicuspid
MH  - *Dental Enamel
MH  - Humans
MH  - *Microscopy, Electron, Scanning
MH  - Phosphoric Acids
EDAT- 2012/11/09 06:00
MHDA- 2015/07/15 06:00
CRDT- 2012/11/09 06:00
PHST- 2012/11/09 06:00 [entrez]
PHST- 2012/11/09 06:00 [pubmed]
PHST- 2015/07/15 06:00 [medline]
PST - ppublish
SO  - Shanghai Kou Qiang Yi Xue. 2012 Aug;21(4):384-8.