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History of our dental practice

Dr. “Sandy” MacGregor established his paediatric dental practice at the corner of Yonge and Lawrence in the 1940s. He was the founding Chief of Dentistry at the Hospital for Sick Children and the first head of Paediatric Dentistry at the University of Toronto.


Dr. Tonisson receives Arbor Award from UofT in 2008

Dr. MacGregor's bustling practice saw a significant transformation when Dr.Peter Tonisson joined him as a General Practitioner in the spring of 1976. With a vision of comprehensive care, Dr. Tonisson broadened the patient base to encompass entire families, ranging from children to parents and grandparents. His unwavering commitment was always centered on addressing individual dental needs holistically.
Embracing modernity and prioritizing preventive measures, Dr. Tonisson's practice quickly outgrew its initial one-room operatory. Subsequently, it underwent two expansions before finding its current, more spacious home at 3080 Yonge Street.

Award Winning
Established Team

Dr. Tonisson enjoying his retirement

After 39 years, Dr. Tonisson aligned with Dr. Macrae, sharing parallel values in patient care. Retiring in 2015, Dr. Tonisson now dedicates ample time to the golf course!
In early 2019, Dr. Berbrayer, joined Dr. Macrae at Yonge and Lawrence Dentistry followed by Dr. Mullerbeck in March of 2022. Together they synergize, embracing a philosophy centered on prevention and delivering exceptional, personalized patient care.

Dr. Macrae’s grandmother, Dr. Maret Truuvert, also had a large influence on Dr. Macrae’s practice philosophy. Dr. Truuvert was a pioneer in her field, one of very few female dentists in her era. She emigrated from Estonia to Canada in 1952 and graduated from the University of Toronto in 1956 and specialized in Pediatric Dentistry. She established a busy family practice in Bloor West Village in 1958, where she practiced with her daughter Piret.

Dr. Tonisson and Dr. Truuvert, both of Estonian ancestry, cared for many members of Toronto’s Estonian community. Dr. Macrae is also proud to offer patient care in both Estonian and English.
Estonian World Review
Estonian World Review – Trina Macrae


Invisalign transforms smiles discreetly with clear aligners

Regular Cleanings

Regular cleanings are essential for optimal oral health

Tooth Whitening

Revitalize your smile with our advanced tooth-whitening

New Patients are Always Welcome

We are conveniently located above the TTC station at Yonge & Lawrence.



3080 Yonge St., Suite 3006, Toronto, ON

Business Hours

Monday: 8:00 a.m. - 5:00 p.m.
Tuesday: 8.00 a.m. - 4:30 p.m
Wednesday: 8:00 a.m. - 4:30 p.m.
Thursday: 8:00 a.m. - 6:00 p.m.
Friday: 8:00 a.m. - 1:00 p.m.

© 2024 Yonge and Lawrence Dentistry