Some dental fillings could be (mostly) done using a dental laser (which is Much quieter than a regular dental drill, and that you don't really need to worry about). However, most dentists don't own a dental laser. If your dentist tells you that you have some cavities that need to be taken care of, don't let him or her do this, unless they can do it with a dental laser. When you come home, call around, find a dentist who owns a laser (and an electric-powered drill, see below), and let them tell you whether a laser can be used in your case. I was told that a laser can't be used to replace an existing filling, but I found a dentist who had a laser that he was able to use to replace one of my fillings.
For many types of cavities, a laser is not appropriate. In those cases, find a dentist who owns a newer electric-powered (as opposed to louder air-powered) drill. Ask the dentist to drill for at most 5 seconds, followed by breaks that last at least 10 seconds. This will end up more than tripling the total drilling time - so you might want to offer to pay for the extra time. Some dentists will be open to this, while many will not be as accommodating. In the latter case - find another dentist.
You mentioned dental cleaning.
Many people on this forum got their T as a result of ultrasonic dental cleaning. There is no reason to take this risk. Insist that your dental hygenist cleans your teeth manually. I never heard of a hygenist declining such a request. Manual cleaning is as good as ultrasonic cleaning, and it doesn't cost more.
It is probably not a good idea to wear ear plugs or even ear muffs during a dental procedure because of occlusion effect (the sound will bounce off of the tip of the inserted earplug back into your ear, making the total noise louder). But you might want to experiment, and see whether hearing protection works for you.
Before your visit, you could take NAC and Nicotinamide Riboside before your dental procedure. These supplements are supposed to minimize the effects of an acoustic trauma on the inner ear. To be completely hardcore, and to pull out all stops, you might even take Prednisone before and after your procedure. See my post on
https://www.tinnitustalk.com/thread...itus-recently-this-info-will-be-useful.25741/
to find out how you can get your hands on some prednisone.
From now on, you will want to take care of your teeth and to have a dentist examine your teeth once every 3 months. That way, a dentist can notify you as soon as it appears like you are developing a small cavity, and the doctor will be able to use the laser (as the cavity will still be small).
Check out the poll below...
https://www.tinnitustalk.com/thread...tus-spike-following-a-dental-procedure.30197/