Dr. David Cheng Dr. Mahan Alavi - Your Toronto dentist for more than 30 years Dr. David Cheng Dr. Mahan Alavi - Your Toronto dentist for more than 30 years

Your Toronto Dentist

  • Compassionate, Experienced, Innovative
  • 170+ Google reviews
  • Western Ontario and University of Toronto graduates

CALL: 416-368-8000 Request Appointment

Appointment Request

You Are More than a Dental Patient

Our dental office in downtown Toronto uses the latest dental technology and individualized patient care to identify dental problems that ultimately affect your overall health. This method allows us to take aesthetic dentistry to the next level and become more than just your dentist but your overall wellness partner.
Our Dentist in Toronto working with his assistant

Experienced & Caring

With years of experience and education, Dr. Alavi & Dr. Cheng are passionate about dentistry in Toronto. They lead by example for our dedicated team of dental professionals to follow. We use our training to educate you on your dental health so you can care for your teeth long-term.

Our dentist in Toronto assisting during a consultation with a patient

Friendly & Courteous

We make it our aim to accommodate your individual needs and place you as our priority. We offer a range of comforts and conveniences, such as opening hours on Saturdays and downloadable patient forms.

Our Dentist in Toronto using modern technology

Innovation & Precision

Modern technology and new techniques allow us to provide your family with breathtaking results. Experience dentistry with more accuracy and less discomfort in a calm, relaxing environment.

 A bright green badge with the words Get A Second Opinion. Dr. Cheng, a top dentist in Toronto, provides complimentary second opinions.
Need a Second Opinion?
Making decisions about your smile is a huge investment. Come in for a consultation to get another opinion from our dentist

Information is vital! We want to give you the knowledge you need to make the best decision for your oral health. We understand that sometimes that means reconfirming a diagnosis with another source. At Dentistry on King, we will never recommend treatment you don’t need.

Dr. Alavi & Dr. Cheng - Your Toronto Dentist

Quality dentistry, genuine care, and specific training are a few reasons why patients choose us.

Dr. Cheng your caring dentist in Toronto helping a patient

Here are some fast facts about our caring dentists:

A smile is the universal symbol of happiness, and everyone wants a healthy smile. Dr. Cheng and your smile team are committed to bringing modern dentistry to your family. Our caring staff knows your dental health is important to you, so it’s important to us.

At Dentistry on King, we offer general, cosmetic, restorative, and implant dentistry in Toronto. If it has been a while since you’ve been to the dentist, you may find yourself amazed at the modern dental technology we offer. The dental industry is forever changed and will continue to evolve as a result of technology advancements.

As advancements in technology continue, Dr. Cheng knows how important it is to stay up-to-date with the latest in preventive care, diagnostics, and treatment. He believes patients always come first and has handpicked a friendly team to ensure your visits are comfortable, easy, and painless.

Since 1987, Dentistry on King in Toronto has provided patients with the knowledge, expertise, and technology to treat most dental problems from the necessary check-up to full smile makeover.

If you have a question about your dental health or are looking for a Toronto dentist, contact our office today.

Request an Appointment

Comfortable, Modern Dentistry Since 1987

Receive customized dental maintenance programs and treatments that help all aspects of your daily life.

A happy smiling family with beautiful healthy smiles. Your Toronto dentist offers high-class general dentistry
General Dentistry


Toronto dentists providing family dental services designed to improve your overall health.
A young woman showing off her attractive bright smile thanks to Cosmetic dentistry provided by this dentist in Toronto
Cosmetic Dentistry


For a more attractive, brighter smile you will show off constantly.
An older couple smiling and embracing as they enjoy implant dentistry from this dentist in Toronto
Implant Dentistry


Restore your missing tooth with absolute precision and efficiency.
  • Regular Exams

  • Dental Hygiene

  • Dental Emergencies

  • White Fillings

  • CEREC Same-Day Crowns

  • Bridges

  • Dentures

  • Endodontics

  • Sleep Apnea

  • Sedation Dentistry

  • Pinhole Surgical Technique™

  • Invisalign®
  • Porcelain Veneers
  • Laser Dentistry
  • Smile Makeover
  • Cosmetic Bonding

Read our 170+ Google Reviews


Please contact us directly at 416-368-8000 if you have any questions.
Multilingual Team

We’re fluent in English, Farsi (Persian), Cantonese, Tagalog, Russian, and French. Contact us below if you have any questions.

Find Us in Toronto

You can find our office in downtown Toronto.
5 King St East, Unit C
Toronto, Ontario M5C 3C6

Patient Forms

Download our patient forms right from our website to fill out in your home. Be sure to bring them with you at your first appointment.

Visit Our Smile Gallery

Take a look at our smile gallery and see the smiles created at Dentistry on King. Schedule a consultation to see what he can do for your smile.


Achieve it with Dr. Alavi & Dr. Cheng – your dentist in Toronto.

  • Dentistry on King
    5 King St East, Unit C
    Toronto, Ontario M5C 3C6

  • Monday: 9:00 AM – 6:00 PM
    Tuesday: 9:00 AM – 6:00 PM
    Wednesday: 9:00 AM – 5:00 PM
    Thursday: 9:00 AM – 6:00 PM
    Fridays: Reserved for surgery and sedation only
    Every other Saturday: 9:00 AM – 5:00 PM