About Our Doctor


Arlene P. Dagys, D.D.S., D.Orth., F.R.C.D. (C)

Certified Specialist in Orthodontics for Children and Adults

Dr. Dagys is proud to call herself a resident of The Beach. She has maintained a private practice at 340 Kingston Road for over 20 years. She knows that the smiles of happy Beachers come naturally and is committed to enhancing them wherever possible.

In addition to maintaining her private practice in The Beach, Dr. Dagys is a Staff Orthodontist at The Hospital for Sick Children and an Assistant Professor at the University of Toronto, Faculty of Dentistry, where she lectures graduate students.

Dr. Dagys earned her dental degree from the University of Toronto. She then served a combined residency in Pediatric Dentistry and Maxillofacial Prosthodontics at The Hospital for Sick Children from 1974-1975, under the tutelage of Dr. George Zarb. She has been in practice since 1989.

Dr. Dagys has earned international recognition as a researcher, author and lecturer on the subject of Cleft Lip and Palate and Craniofacial Anomalies research. She was a member of the Executive Committee of the Craniofacial Treatment and Research Centre at Sick Children's Hospital from 1978-1990. She was also acting head of their Division of Orthodontics from 1981-1982 and a dental representative to the Medical Staff Association from 1986-1991.

Dr. Dagys believes firmly that one of the responsibilities of a professional is to give back to the community. She is one of the founding organizers of Ski for Kids, an annual fundraiser in support of Cleft Lip and Palate Research at The Hospital for Sick Children.

Dr. Dagys has participated in dental treatment outreach programs to First Nations communities in Sioux Lookout and Landsdowne House in Northern Ontario. She was also part of a humanitarian outreach team in Riga in 1993 during the period immediately following Latvia's declaration of independence from the Soviet Union.

To read more about Dr. Dagys:

Achievements and Awards
  • 2015 Service Award, Ontario Dental Association
  • 2015 Award of Merit, Ontario Association of Orthodontists (first recipient)
  • 2015 Teaching Award, University of Toronto
  • 2013 Elected to Fellowship, American College of Dentists
  • 2007 Canadian Association of Orthodontists, Award of Merit
  • 2001 25-Year Teaching Service Award (University of Toronto)
  • 2001 Elected to Fellowship, Academy of Dentistry International
  • 1995 Elected to Fellowship, International College of Dentists
  • 1993 Elected to Fellowship, Pierre Fauchard Academy: International Honor Dental Service Organization
  • 1991 Ontario Dental Association Board of Governors' Award
  • 1989 Ontario Dental Association Board of Governors' Award
  • 1974 Royal Canadian Humane Association, Award of Merit
  • 1974 Elected to Membership, Omicron Kappa Upsilon Honorary Dental Society, Tau Tau Chapter
Professional Affiliations

Dr. Dagys is presently a Deputy Regent for the International College of Dentists, and she served a three-year term on the University of Toronto Dental Faculty Council.

Over her career, she has served on the executive of dozens of dental associations and committees:

  • Toronto East Dental Society (past President)
  • Association of Women Dentists of Ontario (past President and Newsletter Editor)
  • Ontario Association of Orthodontists (past President)
  • Ontario Association of Dental Specialists (Founding Member and past President)
  • Canadian Association of Orthodontists (past President and Chair of the Annual Scientific Session for a 7-year term)
  • Tau Tau Chapter of the Omicron Kappa Upsilon Honorary Dental Society (past President)
  • Canadian Craniofacial Society (Vice President)
  • Canadian Dental Association
  • Ontario Dental Association (Registration Chair for Annual ASM)
  • Ontario Association of Orthodontists
  • Canadian Association of Orthodontists
  • Fellow, Royal College of Dentists of Canada
  • Fellow, World Federation of Orthodontists
  • American Association of Orthodontists
  • American Cleft Lip and Palate Association (Board Member)
  • Great Lakes Association of Orthodontists
  • Toronto Orthodontic Study Club

Book Chapters:

  • Posnick JC, Dagys AP. Bilateral cleft deformity. An integrated orthognathic and orthodontic approach. Oral and Maxillofacial Surgery Clinics of North America 1991; 3 (3): 639-709 (August)

  • Posnick JC, Witzel MA. Dagys AP. Orthognathic surgery in patients with cleft lip and palate. In Bardac J, Morris HL, eds. Management of Cleft Lip and Palate. Philadelphia, PA, WB Saunders Company, 1989; 530-543

  • Dagys AP. The use of proportions in planning surgical-orthodontic treatment in young adult patients, chapter 9. In Farkas LG, Munro IR, eds. Anthropometric Facial Proportions in Medicine. Springsfield, IL. Charles C. Thomas, 1987; 83-101

Publications (refereed):

  • Posnick JC, Dagys AP. Skeletal stability and relapse patterns after Le Fort I maxillary osteotomy fixed with miniplates: the unilateral cleft lip and palate deformity. Plastic and Reconstructive Surgery 1994; 94: 924-932