The advantages of the dental turbine handpiece are its simple and robust structure, sturdiness, lower purchase price and lighter weight. However, over the years, the adverse effects of high frequency sound from turbines on operator hearing have become an important issue.
In contrast, electric motors are quieter than turbines and cause less hearing damage. When considering the quantity of tooth material removed per unit of time, it is clear that electric motors with water cooling are superior to turbines for grinding.
With the continuous development of electric motors in recent years, manufacturers have clearly recognized that the ergonomics of the weight and size of dental handpieces plays a decisive role in purchasing decisions. The reduction in weight and size is significant compared to instruments manufactured in the past three to five years. It is not uncommon to have a weight reduction of up to 30% and a size reduction of up to 15%. This improvement is due to the reduction of ISO accessories on the motors.
Please note that the “shortened endodontic contra angle handpiece” can only be used on motors with a reduced E-fitting. Even with the overall trend of weight reduction, the turbines are still smaller and lighter than the contra-angle handpiece systems power by the electric motors.
Source:
https://sarahliang2019.blogspot.com/2019/06/whats-difference-between-turbine-and.html