So much of a patient's perception of how "good" you are as a dentist, which often translates into how many of their family and friends they will tell to go see you, can be attributed to the following 2 things. #1 - Are you a "nice" person when treating them (which often has a significant component based on your interpersonal communication skills with them as the patient and you and your staff infront of them as the patient and #2 - "Did it hurt?" If you can carry on a conversation and keep them comfortable, chances are in the eyes of your patients you will be a "good" dentist.
So learning to communicate with your patients, even if it's in a simple way like explaining what will happen next (I.E. you'll feel some air and water squirting around and hear a whistling sound when the highspeed is running, you may smell something like nail polish remover/paint thinner when you're suing bonding agent, you will feel me shaking your lip if you do that during an injection, etc) will help greatly, and if you are an introvert by nature (I am as well) just having a basic conversation, in realatively simple terms, about what you will be doing as well as what your patients may feel/smell/etc during the procedure is a realtively easy way to talk with them, about something that after a while becomes very easy, even for an introverted person, to talk about. Basically, once any diagnostic and treatment conversations are done with my patients, I just talk about the procedure experience, the weather, and maybe some little tidbit I may have noticed about my patient (such as this time of year if I am treating a school aged patient I ask "How's the new school year going?") and it's fairly easy to stay conversational involved with my patients, which they seem to like.
The other factor with burnout, is you need to find something to manage your mental stresses that this profession often brings. Some folks its exercise, some it's crafting, some it's reading/listening to podcasts, whatever it is, and make sure that that outlet is a regaular part of your daily schedule to allow your brain to relax a bit. Not having an outlet is a recipe for burnout for sure