Practice History

Our dental practice has a rich historical heritage in Forsyth County. In April 1946, Dr. A.Y. Howell, a young man from Boone, North Carolina, moved to Cumming. A graduate of Emory Dental School, Dr. Howell, established the first full-time dental practice in our county. His office was on the north side of the Courthouse Square in the offices located under the old gymnasium.

In 1956, Dr. Howell moved the practice to 324 Dahlonega Street. In 1978, Dr. Edward J. Rohmer joined the practice. Dr. Robert M. Joiner joined the practice in 1985. After Dr. Robert M. Joiner purchased the practices of Dr. Rohmer and Dr. Miller, the practice was relocated to 336 Dahlonega Street. At this time, the practice became known as Advanced Dental Associates. Dr. Scott Henderson joined Advanced Dental Associates in 1998 and Dr. Deborah Porres became an associate in 2004. Dr. Kenneth Wyatt became an associate in 2014. Dr. Brodie Orr joined the practice in 2021. Advanced Dental Associates continues to grow with the community and now calls the Centre Court Professional Building here in Cumming home.

Our Location

285 Elm Street, Suite 200, Cumming, GA 30040

Hours of Operation

Our Regular Schedule

Advanced Dental Associates


8:00 am-5:00 pm


7:30 am-5:00 pm


7:30 am-5:00 pm


7:30 am-5:00 pm


7:30 am-3:00 pm






What Our Patients Say About Us

  • "I switched dentists, and got really lucky to have found this practice. The staff are great ! Dr. Orr is great !! Highly recommend."
    Brandi B.
  • "Dr. Wyatt & staff are always welcoming & kind. They get me back straight away & give me full details about my visits. I feel very comfortable with this group & travel quite a ways to see them specifically. I have some bad experiences with other dentists & feel these folks can be trusted."
    Kasey A.
  • "I always enjoy my visit to their offices! They take extra time to make sure I am comfortable!"
    David R.
  • "I have been going to Advanced Dental for about 11 years. My whole family sees them. We LOVE them! I used to hate going to the dentist, but I no longer dread it with them. They have a very caring staff!"
    Cassie S.
  • "I have always found the people at Dr. Joiner and Henderson's office to be caring and gentle. They don't try to push unneeded treatment on patients. The staff has always been professional and friendly."
    Mike R.