• Quality is never an accident.
    It is the result of intention, sincere effort, intelligent direction, and skillfull execution.
    It represents the wise choice of many alternatives.

Welcome to Greenville Dental Sleep Center!  

We are a team of dedicated dentists and staff in Greenville ready to help you with your snoring and sleep apnea concerns.

Although we deliver a wide range of dental services to our patients, we have a special interest in treating sleep disordered breathing.  At GDSC we recognize the frustration and health risks associated with patients that snore.  In addition to snoring, sleep apnea is another type of breathing disorder, which is a potentially a life-threatening condition characterized by brief interruptions of breathing during sleep. Along with the generally decreased quality of life, people who suffer from sleep apnea also experience an increased risk of high blood pressure, heart attack, stroke, and depression. You may suffer from sleep apnea if you experience:

  • Loud or chronic snoring
  • Episodes of breathlessness during sleep
  • Excessive daytime tiredness and irritability

Our Greenville Dental Sleep Center dentists understand the stress and health risks that come with sleepless nights. We combine years of experience with the latest treatment techniques, such as Sleep Therapy , to help you reduce and even eliminate your sleep problems altogether!

This website was created to educate patients about dental sleep medicine, our practice, and the services we offer. You will find all of the information you need on these pages about sleep disordered breathing and the latest techniques and treatment options. In addition to our  general dental services, we partner with board certified sleep physicians to treat Snoring and Sleep Apnea.

Our goal at Greenville Dental Sleep Center is to help sleep disordered breathing patients find real solutions to their sleep problems and regain refreshing sleep to improve their overall health and quality of life. If snoring or sleep apnea affects you or someone you know, you should not delay treatment. Call Greenville Dental Sleep Center or request an appointment to schedule an evaluation and reclaim healthy sleep!

At GDSC, we value our patient relationships, making it our priority to deliver gentle compassionate care that you deserve from a dentist in Greenville. We work hard to make you feel at ease by providing exceptional patient care in a relaxed, convenient atmosphere. We strive to develop lifelong relationships with our patients by combining the latest dental technology with a professional and compassionate staff. The result is a beautiful, healthy smile that lasts a lifetime.

We also believe that patients should have sufficient information to make educated decisions about their oral health, treatment options and choice of dentist in Greenville, NC. You'll find all of this important information on our website, including directions to our Greenville office, service descriptions, patient forms, patient education resources and more.

Meet the Dentists

  • William E. Williams

    Dr. Williams is a native of Greenville. He earned his undergraduate degree from the University of North Carolina at Chapel Hill. He received his DDS degree from the University of North Carolina School of Dentistry. Dr. Williams is also an alumnus of the L.D. Pankey Institute, a post-doctoral training facility that focuses on predictable and relationship-based dentistry. Dr. Williams has a special interest in snoring and sleep apnea and is a member of the American Academy of Dental Sleep Medicine.


  • Mark D. Pabst

    Dr. Mark D. Pabst opened his dental practice in Greenville in 1994. Dr. Pabst and his wife Mary Jon are members of First Presbyterian Church in Greenville and both serve in various areas of the church. They enjoy tennis, golf, and spending time with their three children Jennifer, Jessica, and Samantha. Dr. Pabst is also involved in various service organizations in the Greenville community.



    As usual Dr. Williams was very professional and personal. He solved my problem with his expertise


    Dr. Williams is very knowledgeable and explained my options so I could make informed decision


    I have been seeing Dr. Williams for over 13 years and have never had a bad visit! Everyone in the office that I encounter are always pleasant and professional. Service is always fast and efficient. I especially love Heather!! She has the best personality and always delivers service with a smile.


    Dr. Williams has the best office staff and hygienists in town. He provides quality dental care and makes sure his patients are comfortable. The extra precautions this practice is taking to ensure patient and staff safety during the pandemic are what all practices should be doing.


Greenville Dental Sleep Center

Snoring and Sleep Apnea Dentistry

2799 Charles Blvd
Greenville, NC 27858

Phone: (252) 355-2300 |
(252) 355-2214

Office Hours


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


8:00 am-5:00 pm


By Appointment Only





Contact Us

Please call us or use this form to send us an email