A Bulge in the Roof of Her Mouth Where a Canine Should Not Be

Quick answer: Upper canines can become impacted, most often towards the palate. Between about ten and eleven there is a simple intervention — removing the baby canine — that redirects a substantial proportion of them into the arch without surgery. After about thirteen, that option is gone.

The call

She came for an ordinary check-up. Nothing was wrong, nothing hurt, and the finding was made by feeling rather than looking.

Malka, 11, from RBS Daled, had all her baby canines still present, which at eleven is late but not alarming on its own.

What we found

The examination that finds these takes about twenty seconds and should be done on every child from about age nine: palpating high in the buccal sulcus above where the canine should be.

On the left, a firm bulge was palpable in the normal position — that canine was on its way. On the right, nothing was palpable buccally, and there was a distinct fullness on the palatal side instead.

A canine you cannot feel in the normal position by about ten or eleven is the warning sign, and it is entirely missed unless somebody puts a finger there.

The x-rays confirmed it. The right permanent canine sat high and displaced towards the palate, its crown overlapping the root of the lateral incisor. The baby canine on that side was still firmly in place.

Why upper canines do this. They have the longest journey of any tooth — they begin high near the floor of the orbit and travel down and forward, guided by the root of the lateral incisor. They are also among the last to arrive, around eleven to twelve, so by the time they come the space may already be gone. Any disturbance of the guiding structures sends them off course, most often to the palate.

Impacted canines are far from rare, and they cluster in families.

The consequence of missing it is the reason for screening. A displaced canine can resorb the root of the lateral incisor beside it — permanently, silently, and sometimes severely enough to lose that tooth. That damage happens during exactly the years when the problem is easiest to intercept.

The window. Between roughly ten and thirteen, extracting the baby canine on the affected side redirects a meaningful proportion of palatally displaced canines into a normal path — reported success rates vary but are substantial, and it works best when the displacement is moderate and there is adequate space. It is one extraction, no surgery, no appliance.

After about thirteen, the options are surgical exposure with orthodontic traction over twelve to eighteen months, or extraction of the canine, or leaving it and monitoring.

Malka was eleven. That is the moment.

What we did

Extracted the right baby canine, a straightforward extraction under local anaesthetic, ten minutes.

Checked and created space. Interceptive extraction only works if there is room for the canine to come into. There was not quite enough, so a short course of upper arch expansion ran alongside.

X-rayed at six and twelve months to track whether the canine was correcting its path.

At six months it had moved measurably towards the buccal side. At twelve months it was palpable in the normal position — the finding we had been unable to make at the start.

It erupted at thirteen, into a slightly rotated position that was corrected with a short course of fixed appliances.

The lateral incisor beside it was checked carefully for root resorption at diagnosis and at follow-up. There was none, because it had been caught before contact.

The outcome

A canine in the arch by fourteen, no surgery, no traction, no damage to the neighbouring tooth.

Her younger sister was screened at nine, given the family pattern. Both her canines were palpable in the normal position.

What to do if this happens to you

1. Ask for canines to be palpated from age nine. It takes seconds and is the whole screening test.
2. Get an x-ray if a canine is not palpable by ten or eleven.
3. Act inside the window. Interceptive extraction works between about ten and thirteen and not after.
4. Ask about the lateral incisor's root. Resorption is the silent risk.
5. Ask whether there is space. Interception fails without it.
6. Screen siblings. It runs in families.

Child aged nine to eleven? Ask Ramat Beit Shemesh Urgent Dental Care to check the canines. 055-985-8845 · WhatsApp https://wa.me/972559858845 · Harav Kook 28/1, Beit Shemesh

This is a composite clinical story. It reflects a presentation we see regularly in Beit Shemesh and Ramat Beit Shemesh; the name and details are illustrative and are not those of a real patient.