About the American Board of Dental Sleep Medicine

Established in 2004, the American Board of Dental Sleep Medicine (ABDSM) is an independent, self-designated, nonprofit testing organization of dentists who treat snoring and obstructive sleep apnea with oral appliance therapy. Today, more than 800 ABDSM Diplomates are providing quality treatment for patients across the country. The ABDSM designates an individual who meets its requirements as a Diplomate of the American Board of Dental Sleep Medicine.

The purpose of the ABDSM is to test knowledge and clinical proficiency in dental sleep medicine, which includes oral appliances and upper airway surgery to treat sleep-related breathing disorders such as snoring, upper airway resistance syndrome (UARS) and obstructive sleep apnea (OSA). It does not represent a new specialty of dentistry or medicine, nor does it grant or imply any legal qualification, privilege or license to practice. Rather, it simply recognizes those dentists duly licensed by law who have successfully completed the certification requirements established by the ABDSM.

Dentists who are Diplomates of the ABDSM have demonstrated to referring physicians, peers and the public that they have the skills and knowledge essential for the delivery of excellent patient care. The ABDSM believes higher standards for dental sleep medicine translate into better care for patients and greater accountability. The ABDSM credential is widely recognized as the gold standard for excellence in dental sleep medicine.

ABDSM Board of Directors Mission, Vision, and Values


Katherine Phillips, DDS, Diplomate, ABDSM
President Elect
Jennifer Le, DMD, Diplomate, ABDSM
Donald Farquhar, DDS, Diplomate, ABDSM
Immediate Past President
Ronald Prehn, DDS, Diplomate, ABDSM
Harmeet Chiang, DDS, Diplomate, ABDSM
Richard Dunn, DDS, Diplomate, ABDSM
Amy Hartsfield, DMD, Diplomate, ABDSM

Any correspondence to the members of the Board of Directors should be directed through the ABDSM National Office