Snap-in dentures are removable dentures that click onto two or more dental implants and come out for cleaning. Fixed implant dentures are a full arch of teeth screwed onto four to six implants that only a dentist can remove. Fixed teeth feel closest to natural teeth and need less upkeep, while snap-in dentures cost less and are easier to clean.
I've planned both for patients in Johnson County since 2004, and neither one is the right answer for everyone.
The choice comes down to your bone, your bite, your budget and how you want to clean your teeth.
Snap-in vs fixed implant dentures at a glance
| Compare | Snap-in dentures | Fixed implant dentures |
|---|---|---|
| What holds them | Attachments that clip onto the implants | Screws into the implants |
| Implants per arch | Usually two on the lower, four or more on the upper | Four to six |
| Who takes them out | You, every night | Only your dentist |
| Chewing | Comparable to fixed in direct comparisons | Comparable to snap-in in direct comparisons |
| Roof of the mouth | Upper can leave it open with four or more implants | Always open |
| Cleaning | Out of the mouth, at the sink | In the mouth, with a water flosser and floss threaders |
| Upkeep | More repairs and adjustments, inserts wear with use | Fewer |
| Upfront cost | Lower | Higher |
What is the difference between snap-in and fixed implant dentures?
A snap-in denture is removable, and a fixed implant denture is not. That one difference shapes how they feel, how you clean them, and what they cost.
Snap-in dentures, also called snap-on dentures, overdentures, or implant-retained dentures, have small inserts on the underside that press onto attachments on the implants. You feel the denture click into place, and you pull it off at night.
Fixed implant dentures, also called permanent dentures or full arch dental implants, are a single bridge of teeth screwed onto the implants. They stay in when you eat, sleep, and brush.
How many implants does each one need?
A lower snap-in denture usually needs two implants, an upper snap-in denture four or more, and fixed teeth need four to six implants per arch.
The lower two-implant denture has strong backing.
The upper jaw needs more implants for a snap-in denture to stay put.
I plan the number of implants around the bite the teeth have to carry. People who grind or clench often need more support than the minimum, whichever option they choose.
Which one chews better?
In the studies that compared them directly, snap-in and fixed implant dentures chewed about the same.
A review of studies comparing fixed and removable implant dentures in the European Journal of Oral Implantology found comparable chewing performance in the two studies that measured it.
The bigger difference is how the teeth feel while you chew. A fixed denture doesn't move at all, and nothing sits on your gums, so it feels closest to your own teeth. A snap-in denture still rests partly on the gums.
Which one needs more upkeep?
Snap-in dentures need more repairs and adjustments over time than fixed implant dentures.
The same review found more maintenance and complications with implant overdentures than with fixed teeth. It also found more bone loss under overdentures, in the ridge where the denture rests on the gums.
The inserts in a snap-in denture wear with use, and replacing them is a quick visit that restores the snap. The denture base and teeth also wear and need relines or replacing over the years.
Your hygienist checks the implants and attachments at every one-hour hygiene visit, whichever option you have.
Implant Dentures
Implant-supported and snap-in dentures in Overland Park, KS. Dr. Patrick Lillis plans each denture around your bite so it stays put when you eat and talk. Removable and fixed options.
Learn moreHow do you clean snap-in and fixed implant dentures?
You clean a snap-in denture out of your mouth, and you clean a fixed implant denture in place, like natural teeth.
- Snap-in: take it out every night, brush the denture, and clean around the implant attachments and your gums.
- Fixed: brush twice a day and clean under the bridge with a water flosser and floss threaders.
Healthy gums around the implants matter for both. If your gums bleed, start with gum disease treatment so the implants have a healthy base.
Do snap-in dentures cover the roof of your mouth?
A lower snap-in denture never covers the palate. An upper snap-in denture can leave the roof of your mouth open when it sits on four or more implants, and with fewer implants it usually still covers it.
Fixed implant dentures never cover the palate, so food tastes and feels more natural.
Which one costs more?
Fixed implant dentures cost more up front because they need more implants and a more complex bridge. Snap-in dentures cost less, and you can sometimes add the attachments to the denture you already wear if it fits well.
The same review found that nearly every cost-effectiveness study favored overdentures. Fixed teeth need fewer repairs, though, so compare what each option costs over the years as well as on the first day.
A traditional denture costs the least of all, and implants can be added under it later.
Who each option fits best
Snap-in dentures fit people who want a big step up from a loose denture at a lower cost, and fixed implant dentures fit people who want teeth that never come out.
A snap-in denture usually fits best when:
- Your lower denture lifts or slides when you eat and talk
- You'd like to take your teeth out to clean them
- You have less bone and want to avoid extensive grafting
- Your budget points to fewer implants
A fixed implant denture usually fits best when:
- You want teeth that stay in all the time
- You don't want anything covering the roof of your mouth
- You have enough bone for four or more implants per arch, or a graft to rebuild it
- You're losing your remaining teeth and want to skip the loose-denture stage
Satisfaction is high with both. In the review, three studies found people happier with fixed teeth, and five found no difference.
Why the bite matters with either option
Both options last longest when the bite spreads chewing forces evenly across the implants. A denture that hits hard on one side wears its attachments and strains the implants under it.
I design the teeth first, around your bite, your lips, and your smile line, and then place the implants where the teeth need support. We don't just look at one tooth; we look at the entire system: the teeth, the airway, the jaw muscles, and the joints.
That's what the new patient exam here covers, including your jaw joints. For complex cases, I plan the surgery with an oral surgeon.
If most of your teeth can still be saved, full mouth rehabilitation rebuilds them instead of replacing them.
Implant Dentures
Implant-supported and snap-in dentures in Overland Park, KS. Dr. Patrick Lillis plans each denture around your bite so it stays put when you eat and talk. Removable and fixed options.
Learn moreSnap-in and fixed implant denture questions
Can you wear snap-in dentures all the time?
Take them out at night to clean them and give your gums a rest, unless your dentist tells you otherwise. If you want teeth that never come out, a fixed implant denture is the option built for that.
Which dentures are the most comfortable?
Fixed implant dentures usually feel the most like natural teeth, because they don't move and don't rest on your gums. A snap-in denture is far more stable than a traditional denture and still rests partly on the gums.
Can I use my current denture as a snap-in denture?
Sometimes. If your denture fits well and the teeth are in good shape, the attachments can often go into it. A worn or poorly fitting denture usually needs replacing.
Are fixed implant dentures the same as All-on-4?
All-on-4 is one type of fixed implant denture that uses four implants per arch. Fixed implant dentures can use four, five or six implants, depending on your bone and bite.
How long do snap-in and fixed implant dentures last?
The implants can last many years with healthy gums and a balanced bite. Snap-in inserts need replacing more often, and the teeth on both options wear and need repair or replacing over the years.
Choosing between snap-in and fixed implant dentures in Overland Park, KS
At your consultation you see which options fit your mouth, how many implants each one needs, and a written cost for each, side by side.
Overland Park Dental Design, Patrick B. Lillis, DDS4601 West 109th Street, Suite 318, Overland Park, KS 66211
(913) 451-7330
