Crown Lengthening in Thornhill: Restorative and Cosmetic Solutions Under One Roof

Two Indications for Crown Lengthening

Crown lengthening is performed for either restorative or cosmetic reasons. The procedure itself is similar in both cases, but the clinical rationale, expected outcomes, and insurance coverage differ significantly. It is also possible for a patient to benefit from both at the same time.

Restorative Crown Lengthening: When a Tooth Needs It to Survive

The most common clinical reason for crown lengthening is a restorative necessity: a tooth has been damaged — by decay, fracture, or a broken existing crown — to a level below or at the gumline. In order to place a crown, bridge retainer, or other fixed restoration, the dentist needs adequate tooth structure above the gumline to work with.

Two specific restorative principles make this a hard requirement. Biologic width refers to the zone of connective tissue and epithelial attachment that the body maintains between the bone crest and the edge of any restoration. If a restoration margin is placed too close to or below the bone crest, it violates the biologic width and causes chronic inflammation, bone loss, and ultimately failure of the restoration. Crown lengthening repositions the gum and bone to create the physical space needed for a properly placed restoration margin. Additionally, a crown requires a minimum height of tooth structure to grip properly — a tooth broken off at or below the gumline simply does not have enough exposed structure to retain a crown reliably.

Cosmetic Crown Lengthening: Correcting a Gummy Smile

The second indication for crown lengthening in Thornhill is aesthetic. Some patients have a gummy smile — a condition where a disproportionate amount of gum tissue is visible when smiling, making the teeth appear short, square, or buried. This can result from altered passive eruption (the gum tissue did not recede normally during tooth development), vertical maxillary excess (the upper jaw grew more vertically than average), or a hyperactive upper lip (which rises unusually high during smiling).

Cosmetic crown lengthening can have a dramatic effect on smile appearance. Patients who have been self-conscious about their gummy smile for years often describe the change in their confidence as one of the most significant benefits of the procedure. When combined with porcelain veneers or crowns — which can be placed after the tissues have fully healed — the results can be transformative. This coordination between Dr. Adibrad's surgical work and Dr. Kadivar's restorative and cosmetic dentistry expertise is one of the key strengths of the MiNa Family Dentistry model.

Crown Lengthening vs. Gingivectomy

A gingivectomy removes only gum tissue. It is simpler, typically faster, and appropriate when the issue is purely soft tissue excess without underlying bone involvement. Crown lengthening involves both gum tissue removal and, in most cases, reshaping of the underlying alveolar bone. When the goal is to establish a stable, healthy new gumline at a specific level and maintain it long-term, bone reshaping is usually necessary — without it, the gum tissue tends to creep back to where it started.

For restorative crown lengthening, bone reshaping is almost always required because the biologic width must be re-established at the new level. For cosmetic crown lengthening, whether bone work is needed depends on the individual anatomy. Dr. Adibrad determines during the surgical planning phase whether bone reshaping will be required for your specific case.

The Crown Lengthening Procedure at MiNa Family Dentistry

Crown lengthening at MiNa is performed as an in-office surgical procedure. The process begins with a consultation and treatment planning appointment where Dr. Adibrad evaluates your periodontal health, takes measurements of pocket depths, and reviews X-rays to assess bone levels. For restorative crown lengthening, the restorative plan from Dr. Kadivar is reviewed simultaneously so the surgical result aligns with the restorative needs.

On the day of surgery, local anaesthetic is administered to fully numb the area. Dr. Adibrad makes precise incisions to reposition or remove the gum tissue. If bone reshaping is needed, a small amount of alveolar bone is carefully removed and contoured to establish the new tissue level and maintain biologic width. The gum tissue is then sutured in its new position. Crown lengthening typically takes 45–90 minutes depending on the number of teeth involved. Fine sutures are usually removed at a follow-up appointment approximately 1–2 weeks after surgery.

Recovery After Crown Lengthening

Crown lengthening in Thornhill is well-tolerated by most patients. On the day of surgery, some swelling and numbness are expected as the local anaesthetic wears off. Days one through three typically see peak swelling that begins to subside, with soreness managed by over-the-counter pain relief and a soft food diet. From day four onward, soreness diminishes significantly and the surgical site begins to look more settled.

At a suture removal appointment around days ten through fourteen, the tissue looks substantially healed from the outside, though internal healing continues for weeks two through twelve as the tissue matures and settles into its final position. For restorative crown lengthening, the dentist typically waits a minimum of 6–8 weeks before placing a final crown to allow the tissue to fully stabilize at its new level.

Timing: When Can the Crown Be Placed?

After crown lengthening, the gum tissue needs time to heal and stabilize in its new position. If a crown margin is placed too soon, the tissue may still be settling, which leads to margin exposure or an open margin if the tissue creeps back. This can cause sensitivity, food impaction, and decay at the margin.

The generally accepted waiting period before final crown placement after crown lengthening is 6–8 weeks minimum, and many clinicians prefer 8–12 weeks for optimal results. A provisional (temporary) crown can often be placed on the prepared tooth during this healing period to maintain appearance and protect the tooth. At MiNa Family Dentistry, the timing of crown placement is coordinated directly between Dr. Adibrad and Dr. Kadivar — because they work in the same practice, there is no delay from referral handoffs and the restorative and surgical timeline is planned together from the start.

Insurance Coverage and Cost of Crown Lengthening

Restorative crown lengthening is generally classified as a necessary periodontal surgical procedure and is typically partially covered by dental insurance plans in Ontario. Coverage depends on the plan, the annual maximum, and whether the procedure is documented as clinically necessary. Cosmetic crown lengthening performed solely for aesthetic reasons is typically not covered by dental insurance and is an out-of-pocket expense.

The cost of crown lengthening in a private Ontario dental practice typically ranges from approximately $800 to $1,800 or more depending on the number of teeth treated and whether bone reshaping is required. At MiNa Family Dentistry, a treatment estimate is provided before any procedure is scheduled, and a predetermination can be submitted to your insurer if restorative coverage applies.