Full Mouth Rehabilitation: Rebuilding a Worn or Collapsed Bite
Full mouth rehabilitation, also called full mouth reconstruction, rebuilds worn teeth across the whole mouth, often at a raised bite height. This page, for anyone with severe or widespread wear, explains when it is needed, bite planning, additive and subtractive options, general stages and timescales, and how results are protected. Restoring is not always needed, and maintenance should be expected. Deepcar Dental Care offers full mouth rehabilitation.
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Clinically reviewed by Dr Ibraheem Ijaz, dentist · GDC 301711
Medical disclaimer: This page is for general information only. It does not replace an examination or treatment by a dentist.
This page is reviewed by Dr Ibraheem Ijaz, the practice's principal dentist and a General Dental Practitioner (GDC 301711). His qualifications are BDS, BSc (Hons), MSc (Leeds), PG Dip Implant Dentistry and PG Cert Restorative and Aesthetic Dentistry.
What is full mouth rehabilitation?
Full mouth rehabilitation means restoring the teeth across the whole mouth, usually for severe generalised tooth wear. Its aims, a 2025 review chapter says, include rebuilding the teeth's size and length and supporting the bite front and back.
A "collapsed bite" is an everyday phrase for a bite that seems to have lost height. The teeth and surrounding bone commonly compensate as teeth wear, and a 2012 review found techniques for measuring lost bite height lack consistency and reliability.
When is full mouth rehabilitation needed?
Full mouth rehabilitation is not automatic, even with severe wear. A British Dental Journal guide from 2018 concluded that restoring is not always indicated; with no complaints, it judged counselling and monitoring probably the preferable route. The 2017 European consensus statement says restoring is typically better delayed as long as possible, and decisions rest principally on severity, effects and the patient's wishes.
The consensus describes pathological wear as unusual for age and causing pain or discomfort, functional problems or poorer appearance. For one or two damaged teeth, a separate guide covers working out which option suits.
What do assessment and records usually involve?
In general, assessment identifies the cause of the wear, how severe it is and how the teeth meet. UK guidance names study models and photographs among tools for monitoring more severe wear, and research protocols use intraoral scans; digital dentistry has its own page.
How is the bite usually planned?
Planning the bite means deciding how high the teeth should meet, called the vertical dimension of occlusion, and how they should guide each other. Rehabilitation usually involves a planned increase in that height, a reorganised bite, or both, which can make room for material without removing healthy tooth. A 2012 review advised a minimal increase in general, while saying up to 5 mm can be justified for restorative space and front-tooth appearance.
Evidence on raising the bite is limited. A 2012 systematic review of nine studies concluded, within its limitations, that a lasting increase is safe and predictable when indicated, with self-limiting symptoms, while calling for controlled trials. A 2015 review called the evidence weak: it seems to show the jaw system adapts rapidly to moderate changes, though some people may have mild, transient symptoms.
The occlusal scheme, how teeth contact as the jaw moves, is planned too. In published protocols, a diagnostic wax-up models the planned teeth, and a mock-up copied from it lets dentist and patient judge appearance, bite and speech before definitive work. Cosmetic planning has its own smile design process page.
How does the Dahl concept fit in?
The Dahl concept gains space in part of the mouth, mainly for localised wear. Restorations are placed slightly high, and over several months the other teeth usually come back into contact. A 2026 systematic review of 11 studies of fixed Dahl restorations for localised wear found contact returned mainly between 1 and 25.4 months, and was complete in a pooled 86.9%, partial in 10.0% and absent in 0.6%, on low to moderate evidence.
Annual failure rates were up to 8.7% for direct materials and 0.7% for indirect, and complication rates up to 30.2% and 7.2%, the indirect figures over shorter follow-up. The authors called Dahl restorations suitable on that evidence, despite a high propensity for failures and complications.
How do additive and subtractive options compare?
Additive options build material onto worn teeth with little or no preparation, while subtractive options cut teeth down, as for crowns. When restoring is agreed, the 2017 consensus recommends a conservative, minimally invasive approach and keeps traditional invasive restorations for particular situations, such as failed composite, mostly as a last resort. It says this field lacks a solid base of high-level evidence.
| Route (general research summary) | Tooth removed | Reported results | Limits reported |
|---|---|---|---|
| Direct composite, additive | Minimal | Convenience sample of 34 people, 1,269 restorations, mean 62.4 months: annual failure up to 2.2% at the front, 2.9% at the back; 2.3% failed catastrophically; higher risk on molars, lower back teeth and front teeth needing two further sessions | Higher maintenance, especially molars; staining, chipping, fracture, wear |
| Indirect composite, mostly additive | Often minimal | Trial of 41 people, 3 years, 220 direct and 188 traditional indirect restorations: no difference on palatal veneers; on first molars, annual failure 15.5% indirect, 5.4% direct | CAD/CAM study with manufacturer funding, 568 restorations, up to 5.5 years: 96 failures (6 severe, 41 localised, 49 small chips), molars most, 6.11% a year; 18 failures in 200 direct veneers |
| Ceramic onlays and partial coverage | Likely more than direct composite | Separate observations with manufacturer funding, not randomised: 274 ceramic (12 people) and 162 milled composite restorations (9 people), mean 8.5 and 6.7 years, all surviving, total failures 5.5% and 25.3% | Limited adjustment in the mouth; chronic grinding can greatly limit brittle materials |
| Full crowns, subtractive | Laboratory work on resin teeth: about 63% to 72% of a front tooth's crown by weight | Trial of 62 people, 713 crowns of two ceramics, up to 6 years: survival 99.7% for each, success 98.6% and 99.1% | Risk of irreversible pulp damage; failures may be catastrophic; chronic grinding can greatly limit brittle materials |
Reviews have not settled the choice. A 2016 review of 12 studies found no strong evidence that any material is better, with annual failure rates of 0.4% (microhybrid) to 26.3% (microfilled) for direct composite, 0% to 14.9% for indirect composite and 2.7% for porcelain veneers. A 2025 analysis of ten mostly observational studies of minimally invasive full-mouth rehabilitation estimated annual failure of 0.64% for direct composite, 0.13% for resin nanoceramics and 0.04% for ceramics, and annual complications of 2.16%, 2.14% and 0.62%. It found good performance except traditional indirect composite on back teeth.
For front-tooth composite at a raised bite, a 2016 review of five studies reported survival above 90% at 2.5 years and 50% at 5 years, unpooled. It supported short-to-medium-term use, with long-term reporting limited. A 2025 review chapter says ceramic may offer better longer-term survival, but is more costly, usually more invasive than direct composite and may not be readily adjusted, while direct composite can be highly demanding to place and needs favourable conditions for bonding. In its authors' opinion, preserving tooth tissue comes first and restoration survival second. One author declares manufacturer roles.
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What is the provisional phase?
A provisional phase tests the planned bite and appearance with temporary restorations or an appliance. In a 2023 trial of 42 people restored in composite at a raised bite, testing with a removable appliance first had no significant effect on quality of life or early restoration interventions. The resting gap between the teeth shrank less in the appliance group at 1 year. The authors concluded a removable appliance is not indicated for this test.
A 2025 review chapter says testing is not usually necessary, but may still be advised for extensive and expensive indirect restorations. A 2025 clinical paper recommends a test phase for jaw joint problems, large bite changes or an uncertain bite, with splints worn for at least 3 to 6 months.
How are definitive restorations usually placed?
Definitive restorations are the long-term restorations, placed in stages once the bite and appearance are agreed. Direct composite is built up in the mouth, while indirect restorations are made outside it. With severe wear, the 2018 guide warned, even restorations called definitive may last only a limited time, given grinding and erosion.
What is the general sequence, and what timescales are reported?
Published reports describe a staged sequence lasting months to years; times vary widely. These stages and times describe the groups studied, and are not a plan or timescale for any individual.
| General stage in published reports | Time reported in those sources |
|---|---|
| Cause control and monitoring | No set period |
| Records, wax-up and mock-up | No separate time reported |
| Testing the bite, where used | Splints at least 3 to 6 months in one paper; no test phase in others |
| Definitive restorations, direct or indirect | Five to seven sessions of up to 3 hours in Dutch composite studies, including intake and records |
| Review and maintenance | 1 month, then 1, 3 and 5 years in one study |
A 2023 review cites a service evaluation of severe erosive wear in an NHS hospital: average treatment time 20.8 months (range 8 to 44) and 8 to 48 visits, noting scheduling may vary between countries.
How is the result usually retained and protected?
In general, published sources point to cause control, protection from grinding, regular review and repairs.
- Cause control: where wear has several causes, the 2017 consensus says any treatment must be backed by a solid preventive plan, because chronic grinding can greatly limit how long brittle restorations last, and persistent acid can limit partial-coverage ones.
- A splint for grinding: the NHS says mouth guards and splints, which a dentist may recommend, are worn at night to protect teeth from damage. Evidence on the occlusal splint and on teeth grinding and clenching (bruxism) has its own pages.
- Review: in a 3-year study of 47 people, front-tooth composites showed continuous deterioration, with fractures in 10.7%, and the authors said check-up appointments could be important.
- Repairs: the consensus says patients should be told beforehand that composite can need repairs, especially in people who grind.
Findings on grinding differ: a 2025 scoping review, mostly of retrospective studies and more than half on implants, calls it a risk factor for direct and indirect restorations, monolithic zirconia excepted, while a one-clinician cohort of 164 people, mean 33.8 months, mostly upper-front direct Dahl composites, with 71 of 1,010 failing, found no association.
Is full mouth rehabilitation offered at Deepcar Dental Care?
Yes. Deepcar Dental Care offers full mouth rehabilitation.
Is full mouth rehabilitation priced on the fee list?
Deepcar Dental Care's current fee list does not name full mouth rehabilitation, and it does not say whether any of its lines covers it.
When should you speak to your dentist about worn teeth?
Speak to a dentist if your teeth seem to be wearing down, or if a restoration chips, loosens or changes how your bite feels. The NHS advises a dentist for anyone who grinds and has damaged or sensitive teeth or pain in the jaw, face or ear, whose partner reports grinding in their sleep, or who is worried about a child grinding. It suggests a GP for help with some causes, including smoking, stress, anxiety, taking drugs or drinking too much.
Frequently asked questions
Does full mouth rehabilitation mean crowns on every tooth?
Not necessarily. Where restoring is agreed, consensus guidance recommends a conservative, minimally invasive approach, and keeps traditional crowns mostly as a last resort. A 2025 chapter says crowns may suit unpredictable bonding or multiple existing or failed crowns, but preparations are likely to be far more invasive and failures may be catastrophic, and it calls contingency planning essential.
Does restoring worn teeth improve quality of life?
Often, research suggests. A 2024 review of six papers on moderate to severe wear found quality of life rose after restoring, but not after a year's counselling and monitoring. Some showed slightly negative appearance effects later, and some measures changed little. Non-randomised studies had generally high risk of bias, and a 2023 review calls effects after less successful restorations unknown.
What has research found when restorations fail?
Failures differed by material in a small retrospective series: 17 people with composite, 8 with crowns. Composite usually failed by fracture and was replaced or repaired; metal-ceramic crowns usually failed by complete loss, often needing root canal treatment or extraction. Estimated ten-year survival was 62.0% direct and 74.5% indirect, not significantly different, and larger controlled trials are needed.
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The practice is at 334 Manchester Road, Deepcar, Sheffield, S36 2RH, on the ground floor, with free parking directly outside.
Full mouth rehabilitation is one way of managing tooth wear, a progressive condition. It sits within restorative dentistry, which aims to save and rebuild natural teeth wherever possible.
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Deepcar, Sheffield S36 2RH
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