ADVICE PLEASE!!!

An

So I went to the dentist last week for an annual cleaning. Nothing out of the ordinary... or so I thought. My dentist called me today, from his personal phone. He called to tell me that the hygienist that worked on my teeth did not properly clean her tools. YUCK!!! He requested that I go to the doctor and get a blood test done to test for Hepatitis. He discussed with me that he would pay for all expenses to get the full work up done and has fired his hygienist. He relayed that he checked all other patients files from this day to make sure nobody had anything but still wants the tests done. He is extremely uncomfortable that this could have happened as his practice has been open for nearly 30 years and nothing like this has ever occurred. The fact that this is even a possibility scares me. That what if hanging over my head until I get the results is causing me so much anxiety. I have so many mixed emotions regarding this. My family has known him for many years and seem unconcerned but you never know. This could potentially be a huge malpractice lawsuit if I pursued legal action. I’m not sure if I want to do this or not. Ruining a mans career for something his staff did... I just don’t know. Anyone have any opinions? I’m really struggling with this. Am I over reacting?