Study of corrosion of combinations of titanium/Ti-6Al-4V implants and dental alloys.
Metal ions released in 1% lactic acid solution from combinations of titanium fixtures with superstructures made of dental precious metal alloys (dental alloys) and titanium and differences based on the fixing method were investigated. In combinations of titanium with dental alloys, the level of Ti release was influenced by micro-structure of titanium: it was lower when the grain size was smaller. In titanium-titanium combinations, differences in the micro-structure of metal also markedly influenced the dissolution: the level of release increased when the micro-structure of titanium was different. The Ti and V release levels were higher in combination with titanium alloy and titanium than with titanium alloy and dental alloys. Regarding the superstructure-fixture fixing method, the level of Ti release was significantly lower in cement than in direct fixation.
Yamazoe
Masatoshi
M
Division of Biomaterials, Department of Hard Tissue Research, Graduate School of Oral Medicine, Matsumoto Dental University, 1780 Gobara Hirooka Shiojiri, Nagano 399-0781, Japan. yamazoe@yamakin-gold.co.jp
D000497:Alloys; D002484:Cementation; D003116:Color; D003300:Copper / Q000737:chemistry; D003343:Corrosion; D000044:Dental Abutments; D003722:Dental Alloys / Q000737:chemistry*; D003738:Dental Cements / Q000737:chemistry; D015921:Dental Implants; D003764:Dental Materials / Q000737:chemistry*; D017267:Dental Prosthesis Design; D005708:Gallium / Q000737:chemistry; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D007204:Indium / Q000737:chemistry; D019344:Lactic Acid / Q000737:chemistry; D008422:Materials Testing; D016876:Metal Ceramic Alloys / Q000737:chemistry; D010165:Palladium / Q000737:chemistry; D010316:Particle Size; D012834:Silver / Q000737:chemistry; D012995:Solubility; D013499:Surface Properties; D014001:Tin / Q000737:chemistry; D014025:Titanium / Q000737:chemistry*; D015032:Zinc / Q000737:chemistry
D000497:Alloys; D003722:Dental Alloys; D003738:Dental Cements; D015921:Dental Implants; D003764:Dental Materials; D006047:Gold Alloys; D016876:Metal Ceramic Alloys; D007204:Indium; C031462:titanium alloy (TiAl6V4); D019344:Lactic Acid; D012834:Silver; D010165:Palladium; D014001:Tin; D003300:Copper; D005708:Gallium; D014025:Titanium; D015032:Zinc