PMID- 36758591
OWN - NLM
STAT- MEDLINE
DCOM- 20230216
LR  - 20240226
IS  - 1006-7248 (Print)
IS  - 1006-7248 (Linking)
VI  - 31
IP  - 5
DP  - 2022 Oct
TI  - [Effect of different frequencies of Er:YAG laser on bond properties of zirconia 
      ceramic].
PG  - 460-465
AB  - PURPOSE: The effect of different frequencies of Er:YAG laser on bond properties 
      of zirconia ceramic was investigated. METHODS: 3 mmx3 mm x2 mm Y-TZP blocks were 
      randomly divided into 6 groups（n=5）：control group (C)，sandblasting group (SB) and 
      Er:YAG laser group (A1-A4) in which the frequencies were 5, 10, 15 and 20 Hz, 
      respectively, IPS e.max Press ceramics were used as group B. Scanning electron 
      microscope (SEM) images were recorded for each group. The ceramics were bonded to 
      teeth. After being stored in a constant temperature water bath at 37 ℃ for 24 
      hours, shear test was performed with universal testing machine. Fracture modes 
      were evaluated with stereomicroscope. The data were analyzed with SPSS 26.0 
      software package. RESULTS：SEM showed that compared with the control group (C)，the 
      surface of Y-TZP treated by Er:YAG laser with different frequencies became rough. 
      The results of shear test showed that the highest bond strength value for IPS 
      e.max Press ceramics group(B) was (13.15+/-2.97) MPa, followed by sandblasting 
      group (SB): (7.78+/-0.97) MPa, and 10 Hz group (A2): (7.13+/-0.75) MPa. There was no 
      significant difference between sandblasting group (SB) and 10Hz group(A2) 
      (P>0.05). Fracture modes of the control group (C) were mainly interface fracture 
      of Y-TZP and resin cement；most of the fracture modes of Er:YAG laser and 
      sandblasting group (SB) were interface fracture of Y-TZP and resin cement，a few 
      of mixed fracture and cohesion fracture of resin cement；and the fracture modes of 
      IPS e.max Press ceramics group(B) were all mixed fracture. CONCLUSIONS：Er:YAG 
      laser with 10 Hz can replace 110 mum Al(2)O(3) sandblasting for surface 
      modification of Y-TZP, in order to increase the bonding strength between Y-TZP 
      and resin cement.
FAU - Zhu, Hong
AU  - Zhu H
AD  - Department of Stomatology, The First Affiliated Hospital of Dalian Medical 
      University. Dalian 116011, Liaoning Province, China. E-mail: 834378499@qq.com.
FAU - Wei, Meng
AU  - Wei M
FAU - Liu, Pan
AU  - Liu P
FAU - Yuan, Lu
AU  - Yuan L
FAU - Zhang, Yan-Nan
AU  - Zhang YN
FAU - Chen, Jian-Feng
AU  - Chen JF
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Shanghai Kou Qiang Yi Xue
JT  - Shanghai kou qiang yi xue = Shanghai journal of stomatology
JID - 101090220
RN  - 0 (Resin Cements)
RN  - C6V6S92N3C (Zirconium)
RN  - S38N85C5G0 (zirconium oxide)
SB  - IM
MH  - Ceramics/chemistry
MH  - *Dental Bonding/instrumentation
MH  - *Lasers, Solid-State
MH  - Materials Testing
MH  - Microscopy, Electron, Scanning
MH  - Resin Cements
MH  - Shear Strength
MH  - Surface Properties
MH  - *Zirconium/chemistry
EDAT- 2023/02/10 06:00
MHDA- 2023/02/14 06:00
CRDT- 2023/02/09 19:02
PHST- 2023/02/09 19:02 [entrez]
PHST- 2023/02/10 06:00 [pubmed]
PHST- 2023/02/14 06:00 [medline]
PST - ppublish
SO  - Shanghai Kou Qiang Yi Xue. 2022 Oct;31(5):460-465.