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Want to ask a dentist a question but don’t want to pay an exorbitant consultation fee?

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To ask a question, click on any topic below, then scroll to the bottom of the page and fill out the form.  Our resident dentist, Dr. Qin Li, will reply to your question as soon as she can.

Note:  Dr. Li can only reply to general questions about dental practices and procedures and not to questions about your personal dental condition(s), as there are many factors involved in assessing cavities and other dental diseases that cannot be accurately diagnosed without a proper examination.

Thornhill, Vaughan, Richmond Hill Dentist

Silver Diamine Fluoride

An FDA-approved breakthrough therapy for stopping the growth of existing cavities.
A Digital Panoramic Dental X-ray Machine

Digital Dental X-Rays

Digital x-rays reduce radiation and provide instant, high-definition results.
A Photo Of A Smile With Healthy Gums

Gum Disease

Many adults currently have some form of gum disease. Find out what causes gum disease and what you can do to prevent it.

Teeth Cleaning

Professional teeth cleaning can help prevent cavities, tartar build-up and gum disease.

Tooth Decay

Fix cavities and restore broken-down teeth to their original beauty.
A Man Receiving A Dental Exam

Dental Exams

Regular professional examinations can catch problems before they become serious.

Cavity Fillings

Fillings restore the appearance and strength of damaged teeth.
Smiling Couple With Great Teeth

Tooth Replacement

Replacing missing teeth can restore your smile and prevent further problems.

Dentures

Restore the natural look of your smile and chew with confidence.

Crowns and Bridges

Restore the look and function of damaged teeth.
Smiling Man

Root Canal Treatment

Fix a painful, infected tooth and restore its natural appearance.
A Sleeping Woman

Clenching and Grinding Teeth (Bruxism)

Find out what you can do about grinding your teeth.
Tongue Tie - Before

Tongue-Tie (Ankyloglossia)

Correcting tongue-tie early can dramatically reduce the probability of serious dental or speech issues.
Smiling Woman

Wisdom Teeth Removal

Have your wisdom teeth removed safely and professionally.
Tooth Pain

Laser Cold and Canker Sore Treatment

Heal cold and canker sores quickly, painlessly and effectively.
Man Smiling After A Successful Tooth Extraction

Tooth Extractions

Have a problem tooth extracted professionally.
Bad Breath

Bad Breath (Halitosis)

Find out what's causing your bad breath and get professional help.
A Bright White Smile

Teeth Whitening

Professional teeth whitening can achieve great results in very little time.
Great Smile - Picture Of Smiling Woman

Dental Bonding

Improve the appearance of your teeth with a simple cosmetic procedure.

Cavity Fillings

Fillings restore the appearance and strength of damaged teeth.
Smiling Couple With Great Teeth

Tooth Replacement

Replacing missing teeth can restore your smile and prevent further problems.

Dentures

Restore the natural look of your smile and chew with confidence.

Crowns and Bridges

Restore the look and function of damaged teeth.
Dental Implants - Photo Of Smiling Couple

Implants

One of the most effective ways to replace a missing tooth.

Porcelain Veneers

Improve the appearance of teeth that are stained, damaged, or appear too small or crooked.
Certified Invisalign Provider - Vaughan

Invisalign® Clear Braces

Clear, removable aligners are a discreet and convenient way to straighten your smile.
Six Month Smiles Certified Provider - Richmond Hill

Clear Six Month Smiles® Braces

Get straight teeth in as little as six months with Six Month Smiles clear braces.
Gum Contouring

Laser Gum Contouring

Gum contouring can even out your gum line and improve your smile.
Bad Breath

Bad Breath (Halitosis)

Find out what's causing your bad breath and get professional help.

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This Post Has 4 Comments
  1. Hello – I am just wondering whether I can still wear a clear retainer at night to keep my teeth straight, if there are gaps between the teeth and tray ? I believe the term is incisal gaps. I have a permanent retainer already/finished treatment a long time ago, but because my permanent retainer has been redone there are now gaps with the plastic retainer. Thanks

    1. Hi Alicia, sorry for the late reply; we didn’t see your comment until now due to a technical glitch.
      We’d ideally like to see an exact fit of the clear retainer to your teeth. Consider taking a new impression of you teeth for a new clear retainer. You may have to do that every time you have some major dental work done.

  2. Hello, i have a swollen bump in my third wisdom tooth ( pericoronitis ) which is feeling extremely itchy right now and i have difficulties in eating.

    I did not have any fever, only some severe headache and the next day i had this pericoronitis symptom

    How do i treat this symptom, and how do i know of it is in serious or mild conditions according to my statement above.

    1. Hi Voez, pericoronitis could potentially become very painful in a very short time, or it could potentially go away on its own after some discomfort. Although you don’t have a fever, the bump and severe headache is definitely a concern. Please visit a dentist as soon as you can. You may need professional treatment such as prescription antimicrobial mouth rinse or extraction.

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