The short answer
A bridge is fixed in place and held by crowns on the teeth beside the gap, so those teeth are reshaped. A partial denture is removable and clasps onto nearby teeth, which usually stay as they are. Strong, healthy neighboring teeth often make a bridge an option. Several gaps, or a wish to avoid reshaping healthy teeth, often point to a partial. Your dentist will check the teeth, gums, and bone first.
General information, not a diagnosis. Your dentist will examine your mouth before recommending treatment.
Start with the gap and the teeth beside it
You are missing a tooth, or a few, and you have been told the two usual ways to fill the space are a bridge or a partial denture. Both replace the missing tooth so you can chew, speak, and smile normally. They differ in how they are held in the mouth, what they ask of the teeth around the gap, and how you clean them.
The deciding factors are usually the same ones your dentist checks at the exam: how many teeth are missing, where they are, how strong the teeth next to the gap are, and how healthy your gums and bone are. The dental bridges and dentures and partial dentures pages explain each treatment on its own. This guide puts them side by side.
Other ways to replace a tooth may exist. Your dentist will discuss anything that fits your mouth.
How a fixed bridge works
A bridge is a row of connected crowns. The false tooth in the middle, called a pontic, fills the gap. The crowns on either end are cemented onto the natural teeth beside the gap, which are called abutment teeth. The American Dental Association describes a bridge as a fixed partial denture: it is attached to those abutment teeth, and only a dentist can remove it.
To make room for the crowns, the abutment teeth are reshaped by removing some enamel. That step is permanent, so a bridge is usually considered when those teeth are strong, healthy, and free of decay or gum disease. If a neighboring tooth already needs a crown, a bridge can do two jobs at once.
A bridge is typically made in a dental laboratory. You wear a temporary bridge while it is made, then return to have the finished bridge fitted and bonded. Getting a crown usually takes two visits, and a bridge follows the same pattern.
How a removable partial denture works
A partial denture is a removable appliance. The replacement teeth sit on a gum-colored base, and a metal framework with clasps, or sometimes less visible attachments, grips your remaining natural teeth to hold it in place. You take it out to clean it and, in most cases, at night.
Because it clasps onto teeth rather than being cemented to them, the neighboring teeth usually do not need to be reshaped. In some mouths a crown on a natural tooth is still suggested to improve the fit, especially with precision attachments, so ask what your plan involves.
A partial can replace one tooth, a run of back teeth, or teeth in several different places with a single appliance. The practice has a separate page on a partial denture for one missing tooth, including the lightweight temporary version sometimes called a flipper.
| Question | Fixed bridge | Removable partial denture |
|---|---|---|
| How it stays in | Cemented onto crowns placed on the teeth beside the gap | Clasps or attachments grip nearby teeth; comes out for cleaning |
| Neighboring teeth | Reshaped to hold the crowns; the change is permanent | Usually left as they are; a crown is sometimes added for fit |
| Daily cleaning | Brush, plus a floss threader, interdental brush, or water flosser under the false tooth | Remove and brush with a denture cleaner; brush your gums and remaining teeth |
| Gaps in more than one place | Each gap needs its own healthy anchor teeth | One appliance can replace teeth in several spots |
| How it feels | Stays put; most people adapt within days | Can feel bulky at first; may loosen as the gum ridge changes |
| Upkeep over time | Depends on the health of the two anchor teeth | Adjustments and relines as the gum ridge changes |
Daily life: cleaning, eating, and feel
The biggest daily difference is that one stays in and one comes out. A bridge is brushed like your other teeth, but the space under the pontic traps food, so it needs a floss threader, an interdental brush, or a water flosser every day. The practice's post on how to care for a dental bridge walks through the routine.
A partial denture is removed and brushed daily with a denture brush and a denture cleaner, not regular toothpaste, which can be too harsh for the plastic. You also brush your gums and remaining teeth, and store the partial in water or soaking solution overnight so it does not dry out.
- Eating: a bridge stays put while you chew. A new partial can feel bulky at first; start with small, soft bites and chew on both sides.
- Speech: both can change a few sounds for a short time. Reading aloud helps your tongue adjust.
- Settling in: most people adapt to a bridge within days. A partial often needs one or two small adjustments for sore spots in the early weeks.
- Changes over time: gum ridges shrink as years pass, so a partial may need relining or adjusting. A bridge's future depends on the health of the two anchor teeth.
When each one usually fits
Neither option suits every mouth. The pattern of what is missing, and what is left, usually points one way.
If you are deciding between saving a damaged tooth and removing it, read root canal vs. extraction first. If you are facing the loss of all remaining teeth in an arch, immediate vs. conventional dentures is the next guide.
- A bridge is often considered when one tooth or a short row is missing, the teeth on both sides are strong and healthy, and you want something that stays in place.
- A partial is often considered when teeth are missing in more than one area, the neighboring teeth are not strong enough to carry a bridge, you want to avoid reshaping healthy teeth, or you want a removable option now with the choice to revisit later.
- Treat problems first. Decay or gum disease in the anchor teeth is addressed before either appliance, because both rely on healthy teeth and gums for support.
- Keep the long view. Gum disease or bone loss around an anchor tooth may change the plan over time. Ask what happens to each option if one of the supporting teeth is lost later.
What to ask at your consultation
Bring these to your visit. The answers depend on your X-rays and exam, so they cannot be answered well over the phone. The practice accepts all PPO plans and does not accept Medi-Cal or Denti-Cal; see dental insurance and payment and call to verify your coverage.
- How strong are the teeth on either side of the gap, and do any of them already need a crown?
- How much enamel would be removed for a bridge, and what does that mean for those teeth long term?
- Would one partial replace all of my missing teeth?
- What will I need to clean under or around it every day?
- What is the fee for each option, and does my PPO plan treat them differently?
- If I start with a partial, can I change to a bridge later?