Food stuck between crowns: open contacts, food traps and how they are fixed
Meat fibres wedged between the same two teeth after every meal is not something to put up with. It usually has a mechanical cause, and that can be fixed.
Medically reviewed by Dt. Hüseyin Yavuz Özbek, implant surgeon · Updated October 2026Food that packs between two crowns, or a crown and a tooth, every time you eat is usually caused by an open or light contact: the teeth do not touch firmly enough to stop food being pushed into the gap. Contacts can be loose from the start or open over time as teeth drift, which is especially common next to implant crowns. Trapped food is linked to deeper gum pockets, gum inflammation and decay at crown edges. Clean it out gently with floss or an interdental brush, then have a dentist check the contact. Fixes range from adding material to a neighbouring tooth to remaking the crown.
Few things are as irritating as a piece of chicken or a strand of spinach jammed between the same two teeth after every meal. With crowns it is a common complaint, and people often assume it is just how crowns are. It is not. Food packing into one particular gap almost always has a specific cause, usually the way the two teeth touch, and it is worth fixing because trapped food is bad news for the gum and for the edge of the crown. This article explains what is going on and what a dentist can do.
How teeth normally stop food getting in
Neighbouring teeth touch each other at a contact point. When it is right, that contact is firm enough that floss clicks through it with a little resistance, and food is deflected over the top of the teeth when you chew rather than wedged down between them. The shape of the biting surfaces either side of the contact also matters, because it guides food away from the gap.
When the contact is open (a visible space) or light (touching, but barely), chewing pushes food down between the teeth and against the gum. Once something is wedged in, the tongue cannot clear it, and it stays until you remove it.
Why contacts are loose around crowns
It was loose from the start
When a crown is made, the technician and dentist decide how tightly it should touch its neighbours. Too tight and the crown will not seat properly; too loose and food gets in. A contact is checked when the crown is tried in, but it is a fine judgement and occasionally ends up on the light side.
Teeth have moved
Teeth are not fixed in concrete. They drift slightly through life. A contact that was fine at fitting can open years later. A retrospective study found that a gap already present between natural teeth nearby made contact loss next to an implant crown significantly more likely (Kim and Yi, 2025), which fits with the idea that movement elsewhere in the arch spreads along.
Implant crowns are a special case
An implant is fused to bone and does not move, while the natural teeth around it still do. So the gap tends to open between the implant crown and the natural tooth in front of it. A 2024 systematic review found contact loss next to implant crowns was common, with the side towards the front of the mouth affected in about 44% of cases and the back side in about 28% (Sheba et al., 2024). If you have an implant crown that has started trapping food a year or two after fitting, this is the likely reason.
The shape of the crown or the tooth next to it
Uneven heights between a crown and its neighbour, worn biting edges, or a filling with a poor contact on the next tooth can all create a food trap. Sometimes the crown is fine and the problem is an old filling next door.
Why it is worth fixing
Trapped food is more than an annoyance.
- Gum problems. A study of young adults found a significant link between contact type and food impaction, and between food impaction and deeper gum pockets. The authors concluded that food impaction contributes to gum disease and that dentists should deal with the causes early (Hancock et al., 1980).
- Implant gums. Around implant crowns, open contacts are associated with peri-implant mucositis, the gum inflammation that can come before more serious implant problems (Atieh et al., 2026). One study of non-molar implant crowns found the odds of food impaction were about ten times higher where contacts were open (Couso-Queiruga et al., 2026).
- Decay at the crown edge. The margin between crown and tooth is the weak point for decay, and food sitting against it does not help. Our article on decay under a crown explains why.
- Bad taste and breath from food breaking down in the gap.
What to do in the meantime
Until the contact is checked, keep the gap clean so the gum stays healthy.
- After meals, use floss or an interdental brush to remove whatever has packed in. The Oral Health Foundation recommends cleaning between teeth once a day with either, and asking your dental team for the right brush size for each gap. With a food trap, after main meals is more realistic.
- Do not dig with sharp objects such as pins or knife tips. The ADA advises removing stuck objects gently with floss and not with anything sharp or pointed, and seeing a dentist if you cannot get it out.
- Rinse with water after eating if you cannot clean straight away.
- Notice which foods cause it. Stringy meat, fibrous vegetables and popcorn husks are the usual culprits.
- Take a photo and note how long it has been happening. It helps the dentist decide whether the contact was always loose or has opened.
How a dentist fixes an open contact
The right fix depends on where the problem is and how big the gap is.
| Cause | Typical fix |
|---|---|
| Natural tooth next to the crown has a filling with a poor contact | Replace or build up that filling so it meets the crown properly |
| Small gap between a crown and a natural tooth | Add tooth-coloured filling material to the natural tooth to close the gap |
| Contact on the crown is light or open | Add ceramic to the crown in the lab, if it can be removed, or remake the crown |
| Gap next to an implant crown that has opened over time | Depending on how the crown is fixed, it may be taken off and added to, or remade |
| Uneven heights or worn edges guiding food in | Reshape and polish the biting surfaces |
| Teeth spaced across the arch | Sometimes orthodontics before any new crowns |
Cemented crowns are not designed to come off easily, so on a cemented crown the choice is often between adding to the neighbouring tooth and making a new crown. Your dentist will explain which is realistic. Material matters too; our crown types page explains how different crowns are made.
Food traps and black triangles are different
People sometimes mix these up. A black triangle is a space under the contact point, near the gum, where the papilla no longer fills the gap. It mostly collects plaque and is easy to clean with a brush. A food trap is a contact that lets food be forced down between the teeth when you chew. They can happen together, but the fixes differ. See black triangles between crowns for that side of things.
How we check contacts
At Precious Dental, a Ministry of Health licensed clinic in Antalya, teeth are digitally scanned, and at the try-in the fit, bite and shade of each crown are checked before anything is permanently fixed. Fit includes how each crown meets its neighbours. If something feels wrong once you start eating normally, tell us while you are still with us if you can, because it is much simpler to adjust then. Our crowns carry a 5-year written guarantee; guarantee work is done at our clinic in Antalya, and work by other dentists is not covered, so talk to us before anyone changes a crown. Terms are on our guarantee page, and general care is on aftercare and longevity.
Food catching in one spot?
If the same gap traps food at every meal, send us a photo and a short description through our contact page or on WhatsApp. We will tell you what the likely cause is and what would fix it.
Common questions
How do I know if a contact is open?
Signs include food packing into the same gap at most meals, floss sliding through with no resistance at all, a visible gap when you look in a mirror, and sore or bleeding gum in that one spot. A dentist can check the contact with floss and, if needed, an X-ray.
Is it normal for food to get stuck after new crowns?
Occasional fibres after stringy food can happen with any teeth. Food packing into the same place at most meals is not normal and is worth reporting, ideally while you are still in treatment or soon after.
Can I fix it myself?
You can manage it, not fix it. Clean the gap after meals with floss or the right size of interdental brush, and avoid sharp objects. The contact itself needs a dentist to adjust a neighbouring tooth or the crown.
Why does it happen more next to an implant crown?
An implant does not move, but natural teeth slowly drift over the years. A gap can open between the fixed implant crown and the tooth in front of it. Reviews report this is common, especially on the side towards the front of the mouth.
Will a guarantee cover an open contact?
If the crown was made by us, contact us with a photo and description. Guarantee work is done at our clinic in Antalya and changes by other dentists are not covered, so talk to us before anyone alters the crown. See our guarantee page.
Sources
- Hancock EB et al. (1980). Influence of interdental contacts on periodontal status. Journal of Periodontology
- Sheba M et al. (2024). Interproximal contact loss between implant restorations and adjacent natural teeth: a systematic review and meta-analysis. Journal of Prosthodontics
- Kim JH, Yi YJ (2025). Factors influencing proximal contact loss between fixed implant prostheses and adjacent natural teeth: a retrospective study. Journal of the Korean Association of Oral and Maxillofacial Surgeons
- Couso-Queiruga E et al. (2026). Association between interproximal contact loss and peri-implant diseases in non-molar sites. International Journal of Periodontics and Restorative Dentistry
- Atieh MA et al. (2026). Impact of open proximal contacts on peri-implant diseases: a systematic review and meta-analysis. Clinical and Experimental Dental Research
- Oral Health Foundation. How to clean between your teeth
- American Dental Association, MouthHealthy. Dental emergencies
Checked October 2026. Where we give our own view as a clinic, we say so.
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