[A comparative study of friction behaviour matching of natural tooth and new type dental prosthetic materials--titanium].
New type dental prosthetic materials Titanium not only have excellent biocompatibility, better corrosion resistance, appropriate hardness, light density approaching to human skeleton, but also good mechanical properties as those of type II, IV gold alloy recommended by ADAS, and their strength to weight ratio is 1.3 times that of aluminum, 1.5 times that of steel. Friction wear comparative tests of natural living teeth and dental Titanium materials have been carried out against Gr15 steel ball. A reciprocating movement was realized at the modified machine of fretting to simulate the pair of real tooth. The main test parameters were: slip amplitude 500 microns, normal load 20 N, frequency 2 Hz, and number of cycles 5000. The wear behavior results show that titanium is comparatively a prospective dental materials for restoration.
Li
H
H
Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031.
Zhang
J
J
Zhou
Z
Z
Shi
X
X
Li
Z
Z
Yang
D
D
D002648:Child; D003764:Dental Materials; D017276:Friction; D006801:Humans; D008153:Lubrication; D008422:Materials Testing; D014025:Titanium; D014070:Tooth / Q000502:physiology*
D003764:Dental Materials; D014025:Titanium