I was extremely nervous about getting a root canal. I have TMJ dysfunction, so even routine dentist visits are a challenge because it's hard to open my mouth wide enough. Dr. Koelliker put my mind at ease with his friendly manner and his explanation of each step. He was able to work with my small mouth without a problem. He worked efficiently and professionally. The procedure only took 45 minutes from start to finish. I didn't have to wait long at all to get back and started. I was very pleasantly surprised at what a positive experience a root canal was because of Dr. Koelliker and his staff.