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Published September 2026

1 of 6Gums slowly change shape over months and years, and a denture that fit before can loosen
  1. Gums slowly change shape over months and years, and a denture that fit before can loosen
  2. It's lifted off so the fitting surface can be reached
  3. New material is added inside to match the new shape of the gums
  4. A soft reline can be done right there in the chair
  5. A bigger reline or a rebase instead means leaving it at the lab for a day
  6. Either way, it sits snugly again once it goes back in

Who usually does it

general dentist. Done in any general office.

One question worth asking

Will I be without the denture while this is done?

Denture reline and rebase

DenturesBasicD5710D5711D5720D5721D5730D5731D5740D5741+6

Gums change shape over time and a denture loosens. A reline adds new material to the inside of the denture so it fits again; a rebase replaces the whole pink base. Codes differ by full or partial denture and by whether it is done in the office or sent to a lab.

New material is added to the fitting surface so the denture meets the changed shape of the gums again. A soft reline can be done in the chair in one visit; a lab reline or a rebase means leaving the denture for a day or so. A rebase replaces the whole pink base and keeps the teeth. Most plans file this as Basic. What they actually pay varies by plan.

Codes for this

D5710MajorRebase, full upperThe entire pink base is replaced, keeping the teeth; bigger than a reline.per arch · Done sometimesD5711MajorRebase, full lowerThe entire base of a full lower denture is replaced.per arch · Done sometimesD5720MajorRebase, upper partialThe plastic base of an upper partial is replaced.per arch · Rarely doneD5721MajorRebase, lower partialThe plastic base of a lower partial is replaced.per arch · Rarely doneD5730BasicChairside reline, full upperNew lining added to a full upper denture in the office the same day.per arch · Done oftenD5731BasicChairside reline, full lowerNew lining added to a full lower denture the same day.per arch · Done oftenD5740BasicChairside reline, upper partialSame-day reline of an upper partial.per arch · Done sometimesD5741BasicChairside reline, lower partialSame-day reline of a lower partial.per arch · Done sometimesD5750BasicLab reline, full upperThe denture goes to a lab for a stronger, longer-lasting reline; you are without it for a day or more.per arch · Done oftenD5751BasicLab reline, full lowerA lab reline of a full lower denture.per arch · Done oftenD5760BasicLab reline, upper partialA lab reline of an upper partial.per arch · Done sometimesD5761BasicLab reline, lower partialA lab reline of a lower partial.per arch · Done sometimesD5850BasicSoft healing liner, upperA temporary soft liner that lets sore gums heal under an upper denture.per arch · Done sometimesD5851BasicSoft healing liner, lowerA temporary soft liner under a lower denture.per arch · Done sometimes
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Part of these flowsLosing most or all teeth, dentures and implant dentures

Related

Denture reline and rebase: what happens, step by step | TruthMolar