As per CODA guidelines, "The major distinction between the AEGD and GPR programs is the emphasis that the AEGD program places on clinical dentistry in contrast to the emphasis on medical management in the GPR program."
"Both AEGD and GPR award a post-graduate certificate upon completion [...] GPR residents rotate through a variety of services including general medicine, general surgery and anesthesiology. Each program [AEGD and GPR] also includes advanced training and clinical experience in preventive dentistry, periodontics, restorative dentistry, endodontics, and oral surgery."
AEGD: "The Advanced Education in General Dentistry (AEGD) program provides advanced training in clinical dentistry and applied basic sciences. It is a planned, sequential postdoctoral training program specifically designed to meet the needs of recent graduates who want to enhance their skills as general practitioners. The program is an advanced supplement to the predoctoral dental curriculum, not a continuation of that training. The majority of AEGD programs are one year. Several programs offer two-year positions with a primary objective of training academicians."
"The specific objectives of the program are to enhance competence and confidence in the various clinical disciplines that are integral components of dentistry. AEGD graduates should have a broader base of knowledge and experience to facilitate judgments in diagnosis, treatment planning, and decision making during treatment. Completion of an AEGD program can help to better prepare the dentist to evaluate patients' total oral health needs, provide a full range of general dental care, and refer patients, when indicated, to appropriate specialists. The AEGD program also increases the understanding of practice administration through hands-on experience in this area."
GPR: "The General Practice Residency (GPR) program is designed for advanced clinical and didactic training in general dentistry with intensive hospital experience at the postdoctoral level. GPR programs provide instruction and experience in the delivery of care to a wide range of ambulatory and hospitalized patients. This training and exposure prepares dentists to obtain privileges at local hospitals once in private practice. Most GPR programs are sponsored by either a hospital or a hospital affiliated institution such as a dental school [...] The majority of the resident's experience is gained in the direct delivery of oral health care to ambulatory patients. The remaining time may be spent in the operating room involved with inpatient services, as well as the emergency room. Time is also devoted to non-dental services, such as lectures, conferences, and seminars."