Perhaps the most feared of all tools is the dental drill. The sound of it is enough to send some patients into a frenzy. However, it’s the most effective way to remove tooth decay before filling a cavity. This electric drill spins at over 250,000 rpm while shooting water into your mouth. If the drill didn’t administer water, it would get hot enough to damage the tooth. While the dental drill can feel uncomfortable because of vibrations on your teeth, it’s usually not painful when you receive a local anaesthetic.
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