Partial Dentures: Metal, Acrylic or Flexible
A partial denture replaces some of the teeth in an arch and is held in place by the teeth that remain. It has a base carrying the replacement teeth, and clasps or attachments that grip the natural teeth to stop it lifting and shifting.
What partial denture involves
A partial denture replaces some of the teeth in an arch and is held in place by the teeth that remain. It has a base carrying the replacement teeth, and clasps or attachments that grip the natural teeth to stop it lifting and shifting. The base material defines the main categories. A cast metal framework is a rigid chrome-cobalt skeleton with acrylic and teeth attached — thin, strong, precisely fitted to rests prepared on the natural teeth, and the most durable option. An acrylic resin base is thicker and less rigid, cheaper, and usually intended as an interim appliance. A flexible nylon base is comfortable and unbreakable but cannot be adjusted or relined easily and provides less support.
When this treatment is used
Used where several teeth are missing and an implant or bridge solution is not chosen — because of cost, the number of gaps, the condition of the remaining teeth, or insufficient bone. Also used as an interim appliance while healing proceeds or while a definitive plan is decided.
Why the framework material matters more than it sounds
A cast metal partial distributes load through rests seated in prepared recesses on the natural teeth, so chewing force goes down the long axis of those teeth, which is what they are built to take. An acrylic partial without rests transmits force to the gum and rocks against the teeth, which over years contributes to bone loss and loosening of the very teeth it depends on. That is the real argument for the more expensive framework. An interim acrylic partial is entirely appropriate for six months of healing; used as a long-term appliance it can cost you the remaining teeth. Flexible bases sit in between — comfortable and popular, but they flex under load rather than distributing it, and they cannot be adjusted the way metal can.
Living with one
A partial denture is taken out at night, cleaned with a brush and a denture cleaner rather than toothpaste, and stored damp. The natural teeth carrying the clasps need more attention than before, not less — plaque collects around a clasp, and decay at the neck of a clasped tooth is the classic long-term failure. Expect two or three adjustment visits after delivery. Expect the fit to change over years as the ridge in the gap areas resorbs, requiring a reline. And expect that if another tooth is lost, a tooth can often be added to the existing partial (D5650) rather than starting again.
Costs and insurance in summary
Typical fee range across the group: $0–$0 where a single band applies. Several codes here are priced individually and carry their own range on their own page. Cast metal frameworks cost substantially more than acrylic ones and last far longer. Flexible bases sit in between. Priced per arch.
Benefit category: Major prosthodontic, typically 50% on a typical plan. Covered at the major rate. Plans commonly apply an alternate benefit and pay only the acrylic allowance where a cast framework is provided.
Common restrictions: Waiting periods of 6–12 months are common; Replacement typically limited to once every 5–10 years; Alternate benefit clauses may reduce a cast framework to an acrylic allowance; Missing tooth clauses may exclude teeth lost before the policy began.
The codes this guide covers
Each of these describes a variant of the same procedure. Follow a code for its own fee range, its coverage notes and what distinguishes it from the rest of the group.
| Code | Variant | Typical fee |
|---|---|---|
| D5211 | Partial denture — upper, resin base | $900–$2,000 |
| D5212 | Partial denture — lower, resin base | $900–$2,000 |
| D5213 | Upper partial denture, cast metal framework — most reported | $1,500–$3,500 |
| D5214 | Lower partial denture, cast metal framework | $1,500–$3,500 |
| D5221 | Immediate upper partial denture (resin base) | $900–$2,000 |
| D5223 | Immediate maxillary partial denture — cast metal framework | $1,500–$3,500 |
| D5224 | Immediate mandibular partial denture — cast metal framework | $1,500–$3,500 |
| D5225 | Maxillary partial denture — flexible base | $1,200–$2,800 |
| D5226 | Mandibular partial denture — flexible base | $1,200–$2,800 |
| D5227 | Immediate maxillary partial denture — flexible base | $1,200–$2,800 |
| D5228 | Immediate mandibular partial denture — flexible base | $1,200–$2,800 |
| D5282 | Removable unilateral partial denture — one-piece cast metal (maxillary, per quadrant) | $1,500–$3,500 |
| D5286 | Removable unilateral partial denture — one-piece flexible base (per quadrant) | $1,200–$2,800 |
Common questions
What is the difference between a metal and an acrylic partial denture?
A cast metal framework is rigid, thin and seats on rests prepared in the natural teeth, distributing force down their long axis. Acrylic partials are thicker, less rigid and rock against the teeth, which is why they are generally intended as interim appliances.
Are flexible partial dentures better?
They are comfortable and do not break, which patients like. But they flex under load rather than distributing it, and they are difficult to adjust or reline, so they are a compromise rather than an upgrade on a cast framework.
Will a partial denture damage my remaining teeth?
It can if it is the wrong design or if cleaning slips. Plaque collects around clasps and decay at the neck of a clasped tooth is the classic failure. A well-designed framework with rests protects the teeth; a poorly designed acrylic one loads them badly.
Can a tooth be added to my existing partial denture?
Often yes, and it is reported separately. It is much cheaper than a new appliance, though there is a limit to how many times it can be done.