Explaining ‘combination syndrome’

Combination syndrome occurs when patients have a complete upper denture and only a few remaining lower natural teeth, usually their front teeth.

Why is this an issue? With this combination of artificial teeth opposing natural teeth, multiple problems will occur. Accelerated bone loss on the upper anterior ridge (your jaw bone below your nose) creates flabby tissue that will eventually hinder denture retention. Bone loss on the back lower edentulous (toothless) ridges will impede your ability to wear a lower partial. Over-eruption of your lower front teeth and overgrowth of the upper posterior ridges also all may result in loss of vertical dimension of your facial profile.

All these consequences will make restoring your mouth very difficult. In addition, it will make wearing dentures more difficult.

There are treatment options that can help prevent combination syndrome from occurring. If you are going to have an upper denture constructed, you might consider retaining some healthy roots under your denture. This will aid in the support of the underlying bone and help resist the negative effects that biting forces will have on the edentulous ridge. You can also place implants in strategic positions to support the bone your dentures and partials rest upon.

If you fall into any of these situations, you should be evaluated to prevent any further complications.