We Glued His Own Piece of Tooth Back On

Quick answer: If a piece of front tooth breaks off cleanly and you can find it, it can often be bonded straight back on. The colour match is perfect, because it is the original tooth. Keep the fragment wet — milk or saliva — and get to a dentist the same day.

The call

August, at the pool in Beit Shemesh. Yoni, 15, misjudged the edge of the shallow end getting out and caught his mouth on the wet tile. A clean triangle of his upper front tooth came off.

His father did the single most useful thing available: he got in the water, found the fragment on the bottom of the pool, and put it in a bottle of milk from the kiosk. They were with us within ninety minutes.

What we found

Upper right central incisor with a fracture through enamel and dentine, taking about a third of the biting edge on the mesial corner. No pulp exposure. The tooth was firm, responded normally to cold, and was not tender to tapping. The lip was grazed but intact.

The fragment was in one clean piece, undamaged at the edges and still moist.

Reattaching a patient's own fragment — sometimes called fragment reattachment or bonded fragment restoration — is an underused option. It is worth considering when:

• The fragment is in one piece and reasonably intact.
• The fracture edges are clean, not crumbled.
• There is no pulp exposure, or one that can be managed first.
• The fragment has been kept moist. A dry fragment dehydrates, becomes chalky white and opaque, and no longer matches.

The advantages over composite are real. The colour, translucency and surface texture are an exact match, because it is the same tooth. It wears at the same rate as the rest of the tooth, where composite wears differently. And the incisal edge keeps its original shape, which is very hard to reproduce by hand.

The honest caveat: bond strength is roughly two-thirds of intact tooth. The join is a weak point, and if he takes another knock it will likely come off there. It can be rebonded, or replaced with composite if the fragment is lost.

What we did

Rehydrated the fragment in saline for about twenty minutes while we prepared — a dry fragment can regain much of its translucency if soaked before bonding.

Then: rubber dam isolation, a small chamfer prepared along the fracture line on both the tooth and the fragment to give the bonding resin some bulk, etched and bonded both surfaces, seated the fragment with a flowable composite at the interface, and light cured while holding it in exact position.

Finished by polishing the join line to invisibility. Total time about fifty minutes.

No injection was needed, which for a fifteen-year-old was the detail he cared about most.

The outcome

Invisible at conversational distance and, at the two-year review, still invisible. The tooth stayed vital.

He was told to avoid biting hard things with that tooth and, since he plays basketball, to wear a mouthguard. He does.

What to do if this happens to you

1. Find the fragment. It is worth searching for properly.
2. Keep it wet — milk, saline or saliva. Never let it dry out, and never wrap it in tissue.
3. Do not scrub it clean.
4. Be seen the same day, and say on the phone that you have the fragment.
5. Ask specifically whether it can be reattached, before agreeing to composite.
6. Treat it gently afterwards. The bond line is a weak point.

Chipped a front tooth and still have the piece? Bring it in milk to Ramat Beit Shemesh Urgent Dental Care the same day. 055-985-8845 · WhatsApp https://wa.me/972559858845 · Harav Kook 28/1, Beit Shemesh.

Based on real cases treated at the clinic. Names have been changed.