Influence of different surface treatments on porcelain surface topography / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 57-60, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-336392
ABSTRACT
<p><b>OBJECTIVE</b>To evaluate the influence of different surface treatments on porcelain surface topography.</p><p><b>METHODS</b>Metal ceramic prostheses in 6 groups were treated according to the different surface treatment methods, and the surface topography was observed through scanning electron microscope (SEM). Group A was the control one (untreated), group B was etched by 9.6% hydrofluoric acid(HF), group C was deglazed by grinding and then etched by 9.6% HF, group D was treated with Nd YAG laser irradiation(0.75 W) and HF etching, group E was treated with Nd YAG laser irradiation (1.05 W) and HF etching, and group F was treated with laser irradiation (1.45 W) and HF etching.</p><p><b>RESULTS</b>Surface topography was different in different groups. A lot of inerratic cracks with the shapes of rhombuses and grid, and crater with a shape of circle were observed on the ceramic surface after treatment with energy parameters of 1.05 W Nd YAG laser irradiation and 9.6% HF etching (group E). Surface topography showed a lot of concaves on the inner wall of the cracks, and the concaves with diameter of 1-5 microm could be observed on the inner wall of the holes, which had a diameter of 20 microm under SEM.</p><p><b>CONCLUSION</b>The use of Nd YAG laser irradiation with the energy parameters of 1.05 W and the HF with a concentration of 9.6% can evenly coarsen the porcelain surface, that is an effective surface treatment method.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Surface Properties
/
Ceramics
/
Dental Bonding
/
Shear Strength
/
Dental Porcelain
/
Lasers, Solid-State
/
Hydrofluoric Acid
Language:
Chinese
Journal:
West China Journal of Stomatology
Year:
2013
Type:
Article
Similar
MEDLINE
...
LILACS
LIS