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- Title
Bonding of dental porcelain to non-cast titanium with different surface treatments.
- Authors
LIN, Mau-Chin; TUNG, Kuo-Lung; LIN, Sheng-Chieh; HUANG, Her-Hsiung
- Abstract
This study investigated the bonding of dental porcelain to non-cast Ti surface with different treatments. Mechanically ground non-cast Ti strips, simulating surface conditions produced by CAD/CAM, were AL203-sandblasted, then subjected to different surface treatments, including immersion in HN03-containing acid, NaOH-containing alkaline, and NaOH-containing alkaline then HN03-containing acid. Ti-porcelain specimens preparations and their bend strength measurements were based on ISO 9693. Ti surface treatment changed not only surface roughness but also surface chemistry, leading to influence on bond strength. Bond strengths of all Ti-porcelain groups were higher than ISO 9693 minimum requirement. The sandblasted/acid-treated Ti surface showed the highest bond strength (34.60 MPa) with porcelain; no significant difference in bond strength (27.92-29.63 MPa) was found among other Ti-porcelain groups. All Ti-porcelain specimens showed adhesive bond failure. Bonding between non-cast Ti and dental porcelain was strengthened by a simple and practical sandblasting/acid-etching treatment of the Ti surface prior to porcelain sintering.
- Subjects
PORCELAIN; TITANIUM; DENTAL ceramics; NITRIC acid; BOND strengths; SINTERING; SURFACE roughness; SURFACE chemistry
- Publication
Dental Materials Journal, 2012, Vol 31, Issue 6, p933
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2012-073