Closing a small gap with composite bonding: is it right for you?
Bonding can close a small gap in a single visit without drilling healthy tooth. Whether it looks right depends on why the gap is there and how wide the teeth would become.
15 October 2026 · 4 min read · Clinically reviewed by Dr Sundeep Solanki, GDC 212282
Why the gap is there
Gaps can be natural, caused by small teeth, a prominent frenum, gum changes or teeth drifting. If gum disease or a changing bite is involved, that is addressed first.
Tooth proportions
Closing a gap adds width. For a small space this is barely noticeable; for a larger one the teeth can look too wide. A digital mock-up or trial smile helps you see the result before any bonding is placed.
Bonding or aligners?
Where there are several gaps or the teeth are out of position, moving them with aligners first — sometimes followed by small edge bonding — can give better proportions.
Maintenance
Bonding needs polishing at hygiene visits and occasional repairs. Gaps can reopen if teeth move, which is why a retainer is sometimes advised.
Questions patients ask
- Can bonding make teeth look too wide? It can if the gap is large; a mock-up shows you first.
- Can a gap reopen? Yes, if teeth move. Ask whether a retainer is advisable.
- When are aligners more suitable? When several teeth are spaced or out of line.
This article is general information, not personal dental advice. Treatment suitability is assessed individually at consultation.