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In vitro fracture resistance of composite-resin-veneered zirconia crowns
| Content Provider | Scilit |
|---|---|
| Author | Peampring, Chaimongkon Sanohkan, Sasiwimol Aksornmuang, Juthatip |
| Copyright Year | 2017 |
| Abstract | Aims: The aim of this study is to investigate the fracture load to failure and damage mode of the composite resin-veneered zirconia crowns preparing with two different zirconia surface treatments compared conventional porcelain-veneered zirconia crowns. Materials and Methods: Metallic molar-shape dies prepared with 10° convergence angle a 1.5 mm deep chamfer finish line were used. Two groups of composite-resin-veneered zirconia crowns were prepared using different surface treatment (Group A – sandblasting and Group B – glaze-on technique). Group C (conventional porcelain-veneered zirconia crowns) was served as control. Load to failure test was performed to evaluate the fracture resistance of the crowns using a universal testing machine. One-way ANOVA was used to evaluate the differences of mean values (P < 0.05) followed by Tukey's honest significance test multiple comparisons. Results: The mean fracture load to failure of Group A was 1078.45 ± 72.3, Group B was 1215.68 ± 100.76, and Group C (control) was 1203.67 ± 88.05. Modes of failure are 100% bulk fracture of the core through the veneering materials for Group B and C. However, Group A showed 40% delamination of composite veneering leaving zirconia coping exposed. Conclusions: Group B and C showed significant higher load to failure than Group A. Four specimens of Group A revealed the delamination of composite resin veneering. |
| Related Links | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5721501/pdf https://www.jcd.org.in/article.asp?issn=0972-0707;year=2017;volume=20;issue=4;spage=225;epage=229;aulast=Peampring;type=2 |
| Ending Page | 229 |
| Page Count | 5 |
| Starting Page | 225 |
| File Format | XHTML |
| ISSN | 09720707 |
| e-ISSN | 09745203 |
| DOI | 10.4103/jcd.jcd_130_16 |
| Journal | Journal of Conservative Dentistry |
| Issue Number | 4 |
| Volume Number | 20 |
| Language | English |
| Publisher | Medknow |
| Publisher Date | 2017-01-01 |
| Access Restriction | Open |
| Subject Keyword | Dentistry and Oral Surgery Composite Resin Fracture Resistance Zirconia Journal of Conservative Dentistry, Volume 20, Issue 4 |
| Content Type | Text |
| Resource Type | Article |
| Subject | Dentistry |
