Dra. Cléo Salustiano In this article
SummaryWhen is a fixed, removable or full-arch implant denture recommended?How do comfort, hygiene and maintenance compare?FAQRead nextFixed, removable or full-arch implant denture: which to choose?
Quick summary of this article+
Fixed, removable and full-arch implant dentures solve different situations. A fixed prosthesis (crown or bridge, on teeth or implants) is usually recommended when a few teeth are missing; a removable one (partial or complete) when several teeth are missing or implants aren't possible or wanted; and the full-arch implant denture, a fixed complete prosthesis screwed onto implants, when the whole arch is missing and there's enough bone or the option of a graft. Fixed options feel more like natural teeth but need extra cleaning tools; removable ones require adaptation, adjustments and relines. In all of them, regular visits protect gums, teeth and implants. Dr. Cléo Salustiano (CRO-SP 170844) sees patients in Mooca, São Paulo, Monday to Sunday, 8 a.m. to 10 p.m., in Portuguese, English and Spanish.
Choosing between a fixed prosthesis, a removable one or a full-arch implant denture depends mainly on how many teeth are missing, the condition of your remaining teeth and bone, and how much you value having something that stays in your mouth. A fixed prosthesis replaces a few teeth and is attached to teeth or implants; a removable one is taken out by the patient for cleaning; and the full-arch implant denture (called 'protocolo' in Brazil, sometimes known as All-on-4 or All-on-6) is a fixed prosthesis for the whole arch, screwed onto implants.
In clinical practice, many patients come in having already decided on one of the three, sometimes on a friend's recommendation. But what worked well for someone else may not be possible or suitable in your case. Each option has real advantages and different care demands, and that is what's worth comparing before deciding.
In this article, Dr. Cléo Salustiano (CRO-SP 170844), who provides crowns, bridges and dentures in Mooca, compares the three options in terms of indication, comfort, hygiene and maintenance. If your question is specifically between a fixed full-arch denture and a snap-in denture on implants, see also full-arch fixed vs snap-in dentures.
This article comes from Dr. Cléo Salustiano's dental office in Mooca, São Paulo (care in English, Portuguese and Spanish). See the dental implants page to learn how the treatment is done here and book your assessment.
When is a fixed, removable or full-arch implant denture recommended?
A fixed prosthesis is usually recommended when a few teeth are missing, a removable one when several teeth are missing or implants aren't possible or wanted, and a full-arch implant denture when all the teeth in an arch are missing (or the remaining ones can't be saved) and there's enough bone, or the possibility of a graft, for the implants. That's the general rule; every case has its own details.
Fixed prostheses include the crown, the bridge on natural teeth and the crown or bridge on implants. A bridge on teeth depends on healthy anchor teeth on both sides of the gap and means reshaping those teeth. An implant prosthesis doesn't depend on the neighbors, but requires surgery, adequate bone and compatible general health. For one or two missing teeth, these are usually the first options considered.
A removable prosthesis can be partial, when there are still teeth in the mouth, or complete, when there are none. It's recommended when many teeth are missing, when the patient doesn't want or can't have surgery, when bone is insufficient and a graft isn't an option, or as an interim solution while another treatment is planned. There's also the overdenture, a removable denture that snaps onto two or more implants for more stability.
The full-arch implant denture is a fixed complete prosthesis screwed onto implants, usually four to six per arch, depending on bone and planning. The patient doesn't remove it; only the dentist does, at maintenance visits. It's recommended for people who have lost, or will lose, all the teeth in an arch and want a fixed solution. It requires a CT scan, careful planning and sometimes a bone graft. In some cases a fixed temporary prosthesis can be placed a few days after surgery, known as immediate loading.
General health matters too. Uncontrolled diabetes, heavy smoking, some bone medications and radiation therapy to the head and neck can change whether implants are recommended. That doesn't mean the person has no options; it means the plan has to account for these factors. That's why the decision is made after the clinical exam and imaging, not before.
| Aspect | Fixed prosthesis (crown or bridge) | Removable prosthesis (partial or complete) | Full-arch implant denture |
|---|---|---|---|
| Usually recommended when | A few teeth are missing, with suitable anchors or bone | Several or all teeth are missing; when implants aren't possible or wanted | All teeth in the arch are missing, with enough bone or the option of a graft |
| Who removes it | Only the dentist | The patient | Only the dentist |
| Needs surgery | No, if on teeth; yes, if on implants | No (except overdentures) | Yes, to place the implants |
| Comfort and stability | Feels close to a natural tooth | Needs adaptation; lower dentures tend to be less stable | Fixed, doesn't cover the roof of the mouth |
| Daily hygiene | Brush, floss and threader under the bridge | Remove and clean the prosthesis, brush gums and teeth | Brush, single-tuft brush, special floss and often a water flosser |
| Maintenance | Monitoring anchors and crown margins | Adjustments, relines and replacement over time | Monitoring implants and screws, periodic professional cleaning |
How do comfort, hygiene and maintenance compare?
In comfort, fixed prostheses and full-arch implant dentures usually feel more like natural teeth, because they don't move and don't cover the roof of the mouth. A removable prosthesis needs an adjustment period: at first it's common to feel bulk, produce more saliva, get small sore spots and have some difficulty speaking and chewing, which tends to ease with adjustments. Lower dentures in particular are usually less stable, and that's where an implant overdenture can help.
Hygiene works differently. Fixed prostheses and full-arch dentures are brushed in the mouth, but need extra tools: floss threaders or bridge floss, a single-tuft brush and, in many cases, a water flosser to clean underneath the prosthesis, where a regular brush doesn't reach. A removable prosthesis comes out to be cleaned with its own brush and mild soap or a recommended product, without abrasive toothpaste, and the gums and remaining teeth also need brushing.
Maintenance differs as well. Removable dentures need adjustments, relines and eventually replacement, because gums and bone change shape. In an overdenture, the attachment parts wear and are replaced periodically. Fixed prostheses on teeth depend on the health of the anchor teeth, which can develop decay at the crown margin. With a full-arch implant denture, check-ups include evaluating the implants, the surrounding gums and the screws and, when indicated, removing the prosthesis for professional cleaning.
In every option, the main long-term concern is inflammation of the surrounding tissues, whether around anchor teeth or implants. Plaque that builds up under a bridge or a full-arch denture can lead to bone loss around implants, known as peri-implantitis. That's why daily hygiene and regular visits are part of the treatment, not a detail after it.
To decide, bring your priorities to the assessment: having something fixed, avoiding surgery, treatment time, ease of cleaning. Dr. Cléo examines teeth, gums and bite and, when implants are part of the plan, requests a CT scan. From there she presents the options available in your case, with the advantages and care involved in each, without you having to decide on the spot.
Which is more comfortable: fixed, removable or full-arch implant denture?
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For most people, fixed options, including the full-arch implant denture, feel more like natural teeth because they don't move and don't cover the roof of the mouth. Removable dentures need adaptation and adjustments. But comfort also depends on the case: a well-fitted removable denture can be comfortable, and not everyone is a candidate for implants.
What is a full-arch implant denture ('protocolo')?
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It's a fixed complete prosthesis that replaces all the teeth in an arch and is screwed onto implants, usually four to six, depending on bone and planning. The patient doesn't remove it; the dentist can take it out at maintenance visits to clean it and check the implants and screws.
Can someone who wears dentures switch to a full-arch implant denture?
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Often, yes, but it depends on the amount of bone, general health and the CT scan. When bone is insufficient, a graft or a different plan may be needed. In some cases an overdenture, a denture that snaps onto implants, is an alternative. The assessment shows which paths are possible.
How do I clean a full-arch implant denture?
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Brush it in the mouth like teeth, and use tools for the underside of the prosthesis: a single-tuft brush, special floss or a threader and, often, a water flosser. Regular visits also include checking the implants and, when indicated, removal of the prosthesis by the dentist for professional cleaning.
Can I sleep with a removable denture?
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In general, the advice is to take a removable denture out at night so the gums can rest and the denture can be cleaned. But there are situations where the dentist advises otherwise, for example right after an extraction. Follow the instructions given for your case and keep the denture clean in its own case.
Bridge or implant for a single tooth?
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It depends on the neighboring teeth and the bone. A bridge uses the neighbors as anchors and requires reshaping them; it makes more sense when they already have large fillings or crowns. An implant doesn't depend on the neighbors, but needs bone and surgery. The assessment, with imaging, helps weigh both options.
How long does each option take?
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It varies a lot. A bridge on teeth usually takes a few visits. Removable dentures go through impressions, try-ins and adjustments. Implants and full-arch dentures depend on bone healing, which usually takes a few months, and on any grafts; in some cases a fixed temporary is placed soon after surgery. Your timeline is defined in the plan.
Where can I find out which prosthesis suits me in Mooca?
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Dr. Cléo Salustiano (CRO-SP 170844) sees patients at Rua Hipódromo, 1141, in Mooca, near Bresser-Mooca station (Metro Line 3-Red), Monday to Sunday, 8 a.m. to 10 p.m., in Portuguese, English and Spanish, with private care. In the assessment, which takes about 30 minutes, she examines your case and presents the possible prosthesis options, with the advantages and care involved in each.
