Published September 2026
- Some people have a smooth, harmless extra bit of bone here, under the gum
- It only comes out if it's getting in the way, like a denture not fitting or a spot rubbing sore
- The gum is lifted back so the bone underneath is reachable
- The bump is smoothed level with the rest of the ridge
- The gum is laid back down over the flatter surface and stitched
Who usually does it
oral surgeon. Referred to an oral surgeon or periodontist.
One question worth asking
Is this needed for the denture to fit, or is it optional?
Reducing the bony ridge behind the molars
D7485. Trims the bony bump behind the last upper molar.
Some people have harmless extra bone on the roof of the mouth, inside the lower jaw, or behind the molars. It is removed when it gets in the way of a denture or keeps getting sore.
These bony lumps are common and harmless, and they are only taken out when they get in the way. The gum is lifted, the bone is reduced with a bur or chisel, and the gum is stitched back over the flatter surface. It is a frequent step before a denture is made. Most plans file this as Major. What they actually pay varies by plan.
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