PMID- 26140173 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150703 LR - 20220408 IS - 2005-7806 (Print) IS - 2005-7814 (Electronic) IS - 2005-7806 (Linking) VI - 7 IP - 3 DP - 2015 Jun TI - The effect of various sandblasting conditions on surface changes of dental zirconia and shear bond strength between zirconia core and indirect composite resin. PG - 214-23 LID - 10.4047/jap.2015.7.3.214 [doi] AB - PURPOSE: To measure the surface loss of dental restorative zirconia and the short-term bond strength between an indirect composite resin (ICR) and zirconia ceramic after various sandblasting processes. MATERIALS AND METHODS: Three hundred zirconia bars were randomly divided into 25 groups according to the type of sandblasting performed with pressures of 0.1, 0.2, 0.4 and 0.6 MPa, sandblasting times of 7, 14 and 21 seconds, and alumina powder sizes of 50 and 110 microm. The control group did not receive sandblasting. The volume loss and height loss on zirconia surface after sandblasting and the shear bond strength (SBS) between the sandblasted zirconia and ICR after 24-h immersion were measured for each group using multivariate analysis of variance (ANOVA) and Least Significance Difference (LSD) test (alpha=.05). After sandblasting, the failure modes of the ICR/zirconia surfaces were observed using scanning electron microscopy. RESULTS: The volume loss and height loss were increased with higher sandblasting pressure and longer sandblasting treatment, but they decreased with larger powder size. SBS was significantly increased by increasing the sandblasting time from 7 seconds to 14 seconds and from 14 seconds to 21 seconds, as well as increasing the size of alumina powder from 50 microm to 110 microm. SBS was significantly increased from 0.1 MPa to 0.2 MPa according to the size of alumina powder. However, the SBSs were not significantly different with the sandblasting pressure of 0.2, 0.4 and 0.6 MPa. The possibilities of the combination of both adhesive failure and cohesive failure within the ICR were higher with the increases in bonding strength. CONCLUSION: Based on the findings of this study, sandblasting with alumina particles at 0.2 MPa, 21 seconds and the powder size of 110 microm is recommended for dental applications to improve the bonding between zirconia core and ICR. FAU - Su, Naichuan AU - Su N AD - State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P. R. China. ; Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, P. R. China. FAU - Yue, Li AU - Yue L AD - Department of Dental Technology, West China Hospital of Stomatology, Sichuan University, Chengdu, P. R. China. FAU - Liao, Yunmao AU - Liao Y AD - State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P. R. China. FAU - Liu, Wenjia AU - Liu W AD - State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P. R. China. ; Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, P. R. China. FAU - Zhang, Hai AU - Zhang H AD - Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, USA. FAU - Li, Xin AU - Li X AD - Department of Stomatology, Mianyang Central Hospital, Mianyang, P. R. China. FAU - Wang, Hang AU - Wang H AD - State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P. R. China. ; Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, P. R. China. FAU - Shen, Jiefei AU - Shen J AD - State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, P. R. China. ; Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, P. R. China. LA - eng PT - Journal Article DEP - 20150623 PL - Korea (South) TA - J Adv Prosthodont JT - The journal of advanced prosthodontics JID - 101521064 EIN - J Adv Prosthodont. 2015 Dec;7(6):506. PMID: 26816581 PMC - PMC4486617 OTO - NOTNLM OT - All-ceramic OT - Bond strength OT - Indirect composite OT - Sandblasting OT - Zirconia COIS- The authors declare no potential conflicts of interest with respect to the authorship and/or publication of this article. EDAT- 2015/07/04 06:00 MHDA- 2015/07/04 06:01 PMCR- 2015/06/01 CRDT- 2015/07/04 06:00 PHST- 2014/11/18 00:00 [received] PHST- 2015/03/29 00:00 [revised] PHST- 2015/05/11 00:00 [accepted] PHST- 2015/07/04 06:00 [entrez] PHST- 2015/07/04 06:00 [pubmed] PHST- 2015/07/04 06:01 [medline] PHST- 2015/06/01 00:00 [pmc-release] AID - 10.4047/jap.2015.7.3.214 [doi] PST - ppublish SO - J Adv Prosthodont. 2015 Jun;7(3):214-23. doi: 10.4047/jap.2015.7.3.214. Epub 2015 Jun 23.