How Periodontal Surgery Can Enhance Your Orthodontic Treatment

Surgically Facilitated Orthodontic Therapy (SFOT): Faster, Safer Tooth Movement

One of the most exciting advances in the collaboration between periodontists and orthodontists is a procedure called surgically facilitated orthodontic therapy, or SFOT. This procedure allows your orthodontist to move your teeth faster, more safely, and into positions that might not have been possible with braces or aligners alone.

Here is how it works. Before or at the beginning of your orthodontic treatment, Dr. Yant performs a minor surgical procedure where small cuts are made in the bone around the teeth that need to move (a procedure called corticotomy). Bone graft material is then placed around the teeth to thicken and reinforce the bone in the direction the teeth will be moving. This combination of corticotomy and bone grafting triggers a natural healing response called the regional acceleratory phenomenon, which temporarily softens the bone and dramatically speeds up the rate at which teeth can be repositioned. Studies have shown that SFOT can reduce orthodontic treatment time by 30 to 60 percent.

But speed is only part of the benefit. SFOT also makes orthodontic treatment safer, particularly for patients who need significant expansion of their dental arch or movement of teeth into areas where the bone is naturally thin. Without SFOT, moving teeth into thin bone risks pushing the roots through the bone entirely, which causes gum recession and bone loss. By grafting bone in advance and stimulating the body's remodeling process, SFOT creates a thicker, stronger bony envelope for the teeth to move through. When the bone heals after treatment, it is often denser and more supportive than it was before, which also helps reduce the risk of orthodontic relapse (teeth shifting back to their original positions).

SFOT works with both traditional braces and clear aligners like Invisalign. The procedure is performed under local anesthesia (with sedation available if desired) and is similar in recovery to a gum grafting procedure. Most patients return to normal activities within a few days. Dr. Yant and your orthodontist will coordinate closely throughout the process, adjusting the aligner schedule to take advantage of the accelerated tooth movement.

Crown Lengthening and Orthodontics: Treating the "Gummy Smile"

Many patients who seek orthodontic treatment are unhappy not only with the alignment of their teeth but also with the appearance of their smile overall. One of the most common esthetic concerns is the feeling that the teeth look too short or that too much gum shows when smiling. In many of these patients, the underlying cause is a condition called altered passive eruption. During normal development, the teeth erupt into position and the gum tissue and bone are supposed to recede to their proper levels, revealing the full length of the natural tooth crown. In patients with altered passive eruption, this process does not complete. The bone remains too high on the tooth, and the gum tissue stays with it, leaving the teeth looking short and the smile looking gummy.

This condition creates a practical problem for orthodontic treatment as well as an esthetic one. When excess bone and gum tissue cover the lower portion of the tooth crown, there is less visible tooth structure available for your orthodontist to bond brackets or attachments to. This can make it more difficult to achieve precise control of tooth movement, and it means that even after the teeth are perfectly aligned, the smile may still look gummy and the teeth may still appear short because the underlying tissue problem was never addressed.

The solution is esthetic crown lengthening, performed by Dr. Yant before or at the beginning of orthodontic treatment. During this procedure, the periodontist repositions both the bone and the gum tissue to their correct anatomical levels, uncovering the full natural crown of each tooth. This accomplishes several things at once. It reveals the true size and shape of your teeth, immediately improving the appearance of your smile. It provides your orthodontist with more tooth surface to bond to, allowing for better bracket placement and more precise tooth movement. And when crown lengthening is combined with corticotomies and bone grafting as part of an SFOT approach, it also accelerates tooth movement by stimulating the same regional acceleratory phenomenon described above.

The result of combining crown lengthening with orthodontic treatment is often transformative. Patients who started with a gummy, crowded smile end up with teeth that are not only straight but also the correct length and proportion, framed by healthy, well-contoured gum tissue. The crown lengthening addresses the soft tissue architecture while the orthodontics addresses the alignment, and the combination produces a result that neither treatment could achieve on its own.

Gum Grafting and Orthodontic Treatment: Before or After?

One of the most common questions in the relationship between periodontics and orthodontics is when to perform gum grafting: before orthodontic treatment begins, or after it is complete. The answer depends on the specific clinical situation, and Dr. Yant will make this determination based on the thickness and width of your existing tissue, the direction and extent of planned tooth movement, and your overall risk profile.

When Gum Grafting Is Done Before Orthodontics

Pre-orthodontic grafting is indicated when the gum tissue is already thin or deficient at specific sites that will be subjected to significant orthodontic forces, particularly when teeth will be moved toward the lip side of the jaw (labially) or when the arch will be expanded. In adult patients, the tissue tends to be thinner and less forgiving than in adolescents, and moving teeth through thin tissue without reinforcing it first is a recipe for recession and bone loss. By grafting tissue before tooth movement begins, the periodontist creates a thicker, more resilient soft tissue envelope that can withstand the forces of orthodontic treatment without breaking down. This is especially important for the lower front teeth, which naturally sit in very thin bone and are among the most common sites for orthodontic-related recession.

When Gum Grafting Is Done After Orthodontics

In other cases, it may be more appropriate to wait until orthodontic treatment is complete before grafting. This is often the case when the recession develops as a result of the tooth movement itself, when the final tooth positions need to be established before the periodontist can determine exactly where and how much tissue is needed, or when the orthodontic movement is expected to improve the position of the tooth within the bone (for example, moving a tooth that was labially positioned back into better alignment). Waiting until the teeth are in their final positions allows the periodontist to plan the graft with precision, ensuring the best possible esthetic and functional result.

When SFOT Combines Both

In many cases, SFOT offers the best of both worlds. Because the SFOT procedure involves both bone grafting and soft tissue management at the time of the corticotomy, it simultaneously reinforces the bone, protects the soft tissue, and accelerates treatment. This means that patients who might otherwise need a separate pre-orthodontic graft and a separate post-orthodontic graft can sometimes have everything addressed in a single coordinated procedure. This is one of the reasons SFOT has become increasingly popular for adult orthodontic patients who have thin tissue or existing recession.

What This Means for You

If you are considering orthodontic treatment, ask your orthodontist or dentist whether any of these periodontal procedures might benefit your case. SFOT can dramatically reduce treatment time while making tooth movement safer. Crown lengthening can transform a gummy smile into one with properly proportioned teeth. And strategic gum grafting, whether before or after orthodontics, can protect your teeth from recession and ensure your results last.

Dr. Yant works closely with orthodontists throughout Colorado's Front Range to coordinate care for patients who can benefit from these procedures. The best outcomes happen when the periodontist and orthodontist are communicating from the very beginning, planning treatment together to achieve the safest, fastest, and most beautiful results possible.

This guide was prepared by your periodontal care team to help you understand how periodontal surgery can enhance orthodontic treatment. The information reflects current clinical standards and interdisciplinary best practices. Your care team is happy to discuss any of these topics in more detail at your consultation appointment.