Dental high speed air turbine handpiece turbine 4
2013-12-3 · Introduction. Air turbine dental handpieces have been widely used since their introduction in the 1950s, 1, 2 in which high‐speed ball bearings are a critical component. Although dental ball bearings now have an excellent reputation for high speed and smooth operation, meeting or exceeding the standard ISO P4 2 or more, 3 considerable controversy has developed over the effect of clinical use ...
Get Price