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Pediatric Dentistry Supporting Your Practice

Conversations with CAPD: Intrusion of Incisors Due to Trauma

In this second clinical conversation with members of the Canadian Academy of Pediatric Dentistry (CAPD), Dr. Raymond Lee joins Drs. Jennifer MacLellan and John O'Keefe to talk about the intrusion of incisors due to trauma.

Dr. Lee is a Pediatric Dentist in London, ON and current President of the Canadian Academy of Pediatric Dentistry.


  1. Besides avulsions, intrusion is probably the most common, most serious, and the most traumatic periodontal injury to children's teeth.
  2. Following injury to the primary teeth, the greatest concern is the potential injury to the succedaneous teeth. The apex of the primary tooth may encroach on the follicle, which may cause future malformation or deformity, or that little brown spot on a permanent tooth.

Read/download the transcript of the conversation (PDF)

Oasis Moment/Preview (0.56")

Full Presentation (23.28")

Dr. Lee is from Waterloo, Ontario.  He received a Bachelor of Mathematics (BMath, 1988) from the University of Waterloo, earned his Doctor of Dental Surgery (DDS, 1991) from the University of Western Ontario, and then completed an internship/residency at the Hospital for Sick Children in Toronto (1991).  His paediatric specialty training included a Diploma in Paediatric Dentistry (DipPaed, 1995) from the University of Toronto, a Masters in Science (MSc, 1996) completed at the Hospital for Sick Children through the University of Toronto, and a Fellowship in Paediatric Dentistry (FRCD(C), 2003) from the Royal College of Dentists of Canada.

Dr. Lee has maintained a private practice and has been Adjunct Professor at the Schulich School of Medicine and Dentistry, Western University, since returning to London in 1995.   He has been the Staff Paediatric Dentist at Children’s Hospital, London Health Sciences Centre since 1997 and became Site Chief, Paediatric Dentistry at Victoria Hospital in 2008.  At the University of Toronto, Dr. Lee has been an Associate-In-Dentistry since 2002 and was Assistant Professor from 2012 to 2016.  He continues to be involved in undergraduate and post-graduate training in Paediatric Dentistry at Western University and the Program for Persons with Disabilities at Mount Sinai Hospital (Toronto).

Dr. Jennifer MacLellan received her DDS degree from Dalhousie University in 1994 and practised general dentistry in Truro for eight years prior to completing her MSc and certificate in the specialty of pediatric dentistry at the University of Michigan. Since 2005, she has been a staff paediatric dentist at the IWK Health Centre and associate professor at Dalhousie University. Dr. MacLellan is an NSDA Governing Council member, vice-president of the Canadian Academy of Pediatric Dentistry, a fellow of the Royal College of Dentists of Canada, and she serves on the NDEB and American Board of Pediatric Dentistry written examination committees.

1 Comment

  1. Vasant Ramlaggan January 22, 2020

    Thanks! What a great presentation. I found it very useful!


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