UW School of Dentistry

Periodontics Clinic

Periodontists and students providing periodontal treatment to patients

At the University of Washington School of Dentistry in Seattle we offer periodontal (gum) and dental implant services in both our Graduate Periodontics Clinic and our Faculty Practice Clinic.

The Graduate Periodontics Clinic offers periodontic treatment at reduced fees to patients who provide a good teaching experience for the students.

The Faculty Practice Periodontics Clinic offers periodontic treatment by participating faculty periodontists to patients who prefer treatment by experienced faculty members, desire faster entry into treatment, or who are not offered treatment in the graduate clinic.


Graduate Periodontics Clinic

The Graduate Periodontics Clinic at the University of Washington School of Dentistry in Seattle, Washington, offers periodontal (gum) and implant treatment to patients who provide a good teaching experience for the students.

Who will provide my periodontal care?

The Department of Periodontics accepts 4 graduate students each year for its 3 year program of advanced training. These students are doctors who have already completed dental school, then chosen to specialize in periodontics. They are enrolled in an intensive program of classroom, research and clinical training that leads to a Certificate in Periodontics and a Master of Science in Dentistry Degree.

What to expect

  • Patients are treated by graduate students in the department. These students are doctors who have already completed dental school and have chosen to specialize in Periodontics.
  • You will have an initial screening exam (exam fee of $33), and if you qualify for treatment in our clinic, you will be given appointments for a comprehensive examination and any needed radiographs (x-rays).
  • If your case is not appropriate for our teaching clinic, you will still receive a brief explanation of your dental problems as well as options for seeking care in the pre-doctoral clinic, the faculty practice or an outside private practice.

To qualify for screening you must:

  • Accept that appointment times are limited and that they can take longer than in private practice;
  • Live in the greater Seattle area (within a 1 hour commute distance);
  • Bring a photo ID for patient registration


A referral from your dental provider, indicating the type of periodontal care you are seeking, is preferred, however; we do accept self-referrals as well.

It can be helpful to have radiographs (x-rays) from a referring dentist (relative to the treatment you are seeking) to initially assess your care needs. These records can be imported electronically to the UW School of Dentistry’s Radiology Department, or can be brought (on a CD-ROM) to the appointment for viewing by your doctor.

Fees and Insurance

The Graduate Periodontics Clinic offers reduced fees (compared to private specialists) for patients whose treatment provides a good teaching experience for our graduate students.

Clinic Location

Our clinic is located in Room B-403 on the fourth floor of the B-Wing of the Magnuson Health Sciences Center.  For maps, transit and parking information, please visit our location and directions page.

Special Policies

  • The Graduate Periodontics Clinic is not an Apple Health provider.
  • Treatment in the clinic is available for patients 12 years of age and older.

Periodontics Faculty Practice

Meet Our Providers

Dr. Georgios A. Kotsakis, Periodontist (Implants, Gum Disease and Periodontic Procedures)

Gergios KotsakisDr. Kotsakis holds a DDS from the University of Athens, Greece (2009). After practicing General Dentistry in private practice and in the Greek Navy he earned a Certificate in Periodontology (2015) and a Masters in Science (2015), both from the University of Minnesota, MN, USA. Since joining the faculty at the University of Washington as a full-time Assistant Professor in Periodontics, Dr. Kotsakis is actively involved in patient care and clinical research in the fields of Periodontics and surgical Implant Dentistry. His patient care philosophy centers around delivering esthetic and functional treatment options that have high long-term success to his patients, in collaboration with his restorative colleagues. Dr. Kotsakis is a frequent invited national and international speaker on surgical methods in Implant Dentistry.

Dr. Mats Kronstrom, Prosthodontist (Implants)

kronstromDr. Kronstrom holds a DDS from Lund University, Sweden (1980). He earned a Certificate in Prosthodontics from the Postgraduate Dental Education Center, Orebro, Sweden (1994) and a PhD in Prosthodontics from Malmo University, Sweden (1999). Dr. Kronstrom’s research specialty is in the fields of Dental Implants, Decision Making in Prosthodontics and Dental Education. His research focuses on clinical studies in Implant Dentistry in order to develop new and less expensive treatment options for edentulous patients. His practice is focused on surgical placement of implants and treatments with implant supported fixed and removable Prosthodontics as well as conventional crown and bridge. He serves as the Director for D4 Faculty Practice and Chair of the Faculty Practice Board at UW.

Dr. Xavier Lepe, Prosthodontist (Implants)

lepeDr. Lepe holds a Bachelor of Science degree (1976) and a Doctor of Dental Surgery degree (1980) from Universidad de Guadalajara, a specialty certificate in Combined Prosthodontics (1985) and a Master of Science degree in Oral Biology (1987) from Loyola University Chicago.

Dr. Ernesto Ricardo Schwedhelm, Prosthodontist (Implants)

schwedhelmDr. Schwedhelm received his DDS at the Universidad Tecnologica de Mexico in 1978. From Indiana University, he received an MSD (1983), Certificate of Fixed and Removable Partial Prosthodontics (1983) and a Certificate of Removable Prosthodontics, also in 1983. The national Dental Examining Board of Canada certified him for practice in August of 1983. He completed a Fellowship in Prosthodontics at the Royal College of Dentists of Canada in 1995 and a Certificate of Prosthodontics from the College of Dental Surgeons of British Columbia in 1997.

Dr. Hai Zhang, Prosthodontist (Implants)

Dr. ZhangDr. Zhang received a DMD from West China University of Medical Sciences (1992), a PhD in Oral Biology (2002) and a Certificate in Prosthodontics from the University of Connecticut (2002). Dr. Zhang is a board certified Prosthodontist and a Fellow in American College of Prosthodontists (FACP). Currently he is an Associate Professor in the Department of Restorative Dentistry and the interim Director of Graduate Prosthodontics program. He holds a general dental license in the state of Washington. His practice is primarily focused on Prosthodontic procedures (dental implants, crowns and bridges, cosmetic veneers, removable partial and complete dentures) in addition to general dentistry.

What is Periodontics?

Periodontics is the specialty of dentistry that deals with problems of the gums and bone surrounding your teeth. The placement of dental implants has become a major part of periodontics over the past twenty five years. General dentists may provide initial periodontal therapy or they may refer difficult treatment cases to a periodontist for specialty care.

Periodontic services include:

  • Scaling and Root Planing (also known as “deep cleaning”) – removing calculus below the level of the gum line.
  • Gum grafts – surgical procedures to correct receding gums.
  • Bone grafts – surgical treatment to add bone height, width or depth
  • Extractions – removal of teeth that cannot be saved
  • Implant placement and therapy

Visit the Department of Periodontics