Final answer:
The pneumatic handpiece is used in dentistry and is equipped with a water coolant system to protect the tooth pulp from heat generated by friction during dental procedures.
Step-by-step explanation:
The correct answer to the question "The _______ Handpiece supplies a water coolant because it can generate friction here on a tooth to cause possible damage to the pulp" is B) Pneumatic. Dental handpieces, commonly referred to as dental drills, are used for a variety of procedures including removing decay, polishing fillings, and altering prosthesis. Pneumatic handpieces, which are powered by air, have a built-in water coolant system that is necessary to prevent the heat generated by the friction from damaging the tooth pulp or causing pain during dental procedures.
Pneumatic handpieces are essential in dentistry because they help maintain a safe and comfortable temperature on the tooth's surface. The water coolant system plays a crucial role in dental health, ensuring the heat generated by the handpiece does not harm the pulp, which is the innermost part of the tooth, consisting of nerves and blood vessels. If the tooth pulp gets damaged, it can lead to the need for more intensive treatments like root canals.