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Welcome to The Center!

Oral Surgery | Wisdom Teeth | Dental Implants

Welcome to the Center for Oral & Maxillofacial Surgery! We are pleased that you have decided to choose us with your oral surgery needs. We offer a variety of oral surgery procedures including:

Oral & Maxillofacial Surgeon, Thomas H. Simpson Jr, DMD, MD, Marjorie J. Risser, DMD, Mark T. Billman, DMD, MD or Rhonda G. Carter, DDS, practice a full scope of oral and maxillofacial surgery with expertise ranging from corrective jaw surgery to wisdom tooth removal. We can also diagnose and treat facial pain, facial injuries and TMJ disorders, and perform a full range of dental implant and bone grafting procedures.

Drs. Simpson, Risser, Billman or Carter’s staff are trained in assisting with I.V. sedation within our state of the art office setting.

Your initial appointment will consist of a consultation explaining your diagnosis and treatment options. Occasionally, surgery can be performed the same day as the consultation. However, a complex medical history or treatment plan may require an evaluation and a second appointment to provide treatment on another day.

Please assist us by providing the following information at the time of your consultation:

  • Your surgical referral slip and any x-rays if applicable.
  • A list of medications you are presently taking.
  • If you have medical or dental insurance, bring the necessary completed forms. This will save time and allow us to help you process any claims.

IMPORTANT: All patients under the age of 18 must be accompanied by a parent or guardian at the consultation visit.

A preoperative consultation and physical examination is mandatory for patients undergoing IV anesthesia for surgery. Please have nothing to eat or drink eight hours prior to your surgery. You will also need an adult to drive you home.

Please alert the office if you have a medical condition that may be of concern prior to surgery (i.e., diabetes, high blood pressure, artificial heart valves and joints, rheumatic fever, etc.) or if you are currently taking any medications (i.e., heart medications, aspirin, anticoagulant therapy, etc.).


If your dentist or physician has taken x-rays you may request that they forward them to our office. If there is not enough time, please pick them up and bring them to our office. If additional films are necessary they can be taken at our facility.


The Center for Oral & Maxillofacial Surgery makes every effort to provide you with the finest care and the most convenient financial options. To accomplish this we work hand-in-hand with you to maximize your insurance reimbursement for covered procedures. If you have any problems or questions, please ask our staff.

Fort Mill Office: (803) 802-7700
Rock Hill Office: (803) 324-1160
Lancaster Office: (803) 285-9492

Please bring your insurance information to your first office visit so that we can expedite reimbursement.

Please call if you have any questions or concerns regarding your initial visit. We participate with Blue Cross Blue Shield Medical, SC Medicaid, Tricare, United Concordia and Delta Dental.

Financial Information

For your convenience, we accept Visa, MasterCard, and Discover. We deliver the finest care at the most reasonable cost to our patients, therefore payment is due at the time service is rendered unless other arrangements have been made in advance. If you have questions regarding your account, please contact main office in Rock Hill at 803-324-1160.

Please remember that you are fully responsible for all fees charged by this office regardless of your insurance coverage. We will send you a monthly statement. Most insurance companies will respond within four to six weeks. Please call our office if your statement does not reflect payments made by your insurance company during that time period. Any remaining balance after your insurance has paid its portion is your responsibility. Your prompt remittance is appreciated. We can make arrangements for a monthly payment plan, but that must be implemented prior to any actual procedures.

The Center for Oral & Maxillofacial Surgery – For a Healthy & Beautiful Smile!

HIPPA Privacy Policy

Please download our patient privacy policy by clicking the link below. Feel free to contact our staff if you have any questions or need further assistance.

Our HIPPA Privacy Policy (pdf)


Contact Us


The first step towards a beautiful, healthy smile is to schedule an appointment. Please contact our office by phone or complete the appointment request form below. Our scheduling coordinator will contact you to confirm your appointment. If you are an existing patient, this contact form should not be utilized for communicating private health information.


Fort Mill, SC (803) 802-7700
Rock Hill, SC (803) 324-1160
Lancaster, SC (803) 285-9492