The case for Same-Day Porcelain Veneers versus Temporary Veneers worn for 2–3 weeks

Media item: article

Date published: 6 April 2023

Subject: veneer treatment sequencing

Note on the name: "Same-Day Porcelain Veneers" is used as a trade name by its owner. Its use here is descriptive, to identify the item recorded. The service pages are Porcelain Veneers and Same-Day Porcelain Veneers.

This page records the media item. The original article is the property of its publisher and is not reproduced here.

How this page treats it

The item recorded is a commercial argument for one treatment sequence over another. This page does not reproduce that argument or endorse it.

What it does instead is set out what each approach actually involves, and what the provisional stage is clinically for, so a reader can weigh the trade-off themselves. Both sequences are legitimate and both are practised by competent clinicians. The choice is a real one, and it is not the same for every case. The article of the same name is at The case for Same-Day Porcelain Veneers versus Temporary veneers worn for 2-3 weeks.

What provisional (temporary) veneers actually do

This is the part that has to be understood before the comparison makes sense, because provisionals are not simply a placeholder.

Once teeth are prepared, they must be covered — prepared enamel is sensitive, and unprotected teeth drift. So there is always something on them. The question is how long, and what use is made of the period.

What a well-made provisional stage allows:

1. You see and live with the proposed result before it is permanent. Shape, length, width, how much tooth shows at rest and when you smile. A photograph and a screen mock-up are not the same as three weeks of your own face in your own mirror, and people frequently change their mind about length or shape once they have worn it. See The Mock-Up Reveal and why you should see your new smile before any treatment begins.

2. Speech is tested. Length and thickness of upper front teeth affect F, V and S sounds. Problems show up in conversation, not in a chair — and for people who speak, teach, sing or present for a living, this is not a small matter.

3. Function is tested. How the teeth meet, whether they interfere in side-to-side movement, and whether you catch them when eating — see What is malocclusion of the teeth? and TMD and teeth grinding.

4. The gums settle and can be assessed. Tissue responds to the contour of the restoration over days and weeks. A margin that is irritating the gum is visible in a provisional and correctable before the porcelain is made. See Bleeding Gums and Gummy smile.

5. The ceramist gets information. Approved provisionals can be copied — photographed, measured, scanned — so the final restorations reproduce something already agreed rather than something predicted. The work is done at the in-house laboratory.

6. You can change your mind cheaply. This is the honest core of it. During the provisional stage, changes cost time. After the porcelain is bonded, changes cost porcelain — and the price guide shows what that means.

And two acknowledged drawbacks: provisionals are made of composite or acrylic, so they stain, chip and look less good than the final result (Composite bonding: will it look natural and how long will it last?); and it is an extra appointment and an extra fee.

What same-visit completion offers

Also real:

Fewer appointments, which matters for people who cannot take time off
No provisional stage to dislike, chip or lose
No period of looking different before looking finished
The teeth are covered by the definitive restoration immediately, with no temporary-cement interval — the workflow is described at Same-day smiles: what chairside CAD-CAM actually is and Same-Day CEREC Restorations

These are genuine convenience benefits. Under the National Law, advertising must not present convenience as clinical superiority, or create an unreasonable expectation of benefit — and "faster" is not evidence of "better."

The honest way to frame the choice

The provisional stage buys you information and reversibility. Same-visit completion buys you time.

Which is worth more depends on the case:

A provisional stage matters most when:

The shape or length is changing significantly from what you have now — What are my options if I want to change the shape of my teeth?
Multiple front teeth are involved — I need a smile makeover. What's involved?
The bite is being altered
Speech matters professionally
You are not certain what you want — which is common, and not a failing. I want a smile makeover — where should I start?
The gum contour needs to settle

Same-visit completion is more defensible when:

One or two teeth, matching what is already there
No change to length, bite or speech
The shape is already agreed from an approved mock-up or a previous provisional

The thing that matters more than either

How much tooth structure is removed, and whether it is a veneer or a crown.

This is the decision with permanent consequences, and it is independent of the appointment sequence:

Enamel does not grow back. Once prepared, the tooth requires a restoration on it for life. Healthdirect, the Australian Government-funded health service, states it in four words: “You can’t take veneers off.” See What happens to my teeth after dental veneers, and will I ever get cavities?
A crown removes substantially more than a veneer — all surfaces, not a facing. The word "veneer" is used in advertising for both, and asking which one is being placed is the single most useful question in this entire area. What is the difference between porcelain crowns and veneers? and What is the difference between composite veneers and porcelain veneers? set out the distinctions.
The measured difference is large. Edelhoff and Sorensen, in the Journal of Prosthetic Dentistry in 2002, weighed the tooth structure removed by each preparation design and reported it as a mean percentage of the tooth: 8.2 per cent for a partial porcelain laminate veneer, 30 per cent for a complete one, 64 per cent for an all-ceramic crown with 0.8 mm axial reduction and a tapering chamfer, and 71.9 per cent for a metal-ceramic crown with a facial shoulder. Two qualifications belong with those figures: they are anterior teeth, measured in vitro on a typodont, not molars in a mouth; and even so the ratio is the point, because the most extensive veneer preparation still removes less than half what the most conservative crown preparation removes.
And the sources genuinely disagree about how much a veneer removes. The Australian Dental Association’s consumer site says veneers are "very thin, meaning not much or no tooth structure has to be cut away" — which is accurate for minimal-prep and no-prep veneers and is not a description of conventional preparation. Healthdirect, by contrast, warns that "your teeth could become more sensitive because some enamel is removed." Both are published Australian positions. How much comes off depends entirely on the preparation design chosen, which is why the millimetres are worth asking about rather than assuming.
Some prepared front teeth eventually require root canal treatment. The veneer survival literature records "need for endodontic treatment" as a failure mode at roughly 1 to 2 per cent: a 2021 systematic review in the Journal of Clinical Medicine, pooling 25 studies and about 6,500 porcelain laminate veneers, gave a ten-year cumulative survival of 99.0 per cent when endodontic treatment alone was counted as failure, and a 2024 review in the Journal of Functional Biomaterials put endodontic problems at 2 per cent (95% CI 1 to 3 per cent) over a median nine years. But those figures describe conservative laminate veneers bonded largely in enamel. There is no contemporary published figure for pulp survival after heavy preparation or crowning of a healthy front tooth — the reviews themselves note the absence — and a risk of that order applied to eight or ten teeth at once is not a remote one.
Nothing lasts forever, and each replacement removes a little more. The ADA puts the point without hedging: "Having a crown, bridge or veneer does not mean no treatment will ever be needed again for the tooth or teeth." Note also that neither the ADA’s consumer site nor healthdirect publishes an expected lifespan in years — there is no Australian-authority number for how long veneers last, and the survival percentages that do exist come from the international literature, set out with their disagreements at 'Like a set of piano keys': Why Australians are opting for veneers. See also How long do porcelain veneers last? and Turkey Teeth: the real risks of getting veneers overseas
Orthodontics moves teeth without removing any of them. It is slower. That is the entire trade, and it is covered at How to improve your smile and How can I change my smile naturally.

What to ask, whichever sequence is proposed

"Veneer or crown? How many millimetres, from which teeth?"
"Will I see the proposed shape before anything irreversible happens?" A diagnostic wax-up and a trial smile — a mock-up bonded temporarily over unprepared teeth — give you most of the benefit of a provisional stage while everything is still fully reversible. Asking for this is entirely reasonable and costs you nothing but an appointment.
"What happens if I don't like the shape after they are bonded?" — and what that costs.
"Who makes the ceramics?" The ceramist determines whether the result looks like teeth.
"What is the replacement cycle, and what does replacement cost?"
"What registration do you hold, and in what?" The ADA states the position plainly: "A dentist cannot be registered as a Cosmetic Dentist in Australia." It is not a recognised registration category, so the phrase tells you nothing verifiable. What is verifiable — division, any specialist entry, and any conditions — is free on the AHPRA public register in about a minute.
"What would orthodontics achieve here, and why is it not the recommendation?"
"Can I take this plan away and get a second opinion?" For irreversible work on healthy front teeth, this is the most valuable question on the list. See also Understanding Your Treatment.

Common questions

Whichever sequence I choose, what are the survival figures?

There is no single number, and any page offering one is choosing which study to quote. The largest systematic review pooled 25 studies and about 6,500 porcelain laminate veneers and reported a ten-year estimated cumulative survival of 95.5 per cent when fracture, debonding, secondary caries and the need for root canal treatment were all counted together as failure — 433 of 6,500 failed on that combined definition. Counted separately at the same ten-year point: fracture 96.3 per cent, debonding 99.2 per cent, secondary caries 99.3 per cent, need of endodontic treatment 99.0 per cent. A second systematic review is the corrective, because it shows how far published figures disagree: 80.1 to 100 per cent below five years, 47 to 100 per cent at five to seven years, and 53 to 94.4 per cent at ten to twelve years, and it states that "estimation of the longevity of PLVS beyond 20 years is lacking". A third source summarises the reviews as showing "follow-up periods ranging between 5 and 21 years, showing survival rates ranging from 87% to 96%". All of those describe conservative laminate veneers in study populations, not your teeth, and they differ in what each counted as a failure. Note also that neither of the two Australian authorities quoted on this page publishes an expected lifespan in years at all.

When would a problem show up, if there is going to be one?

Mostly early, with one exception that is late — and the timing is worth knowing before you choose a sequence, because it tells you when to still be paying attention. The systematic review found fracture and debonding "more commonly happening within the first years after PLV cementation", with debonding failures mostly within 2 years of cementation. The need for root canal treatment behaves differently, clustering between 3 and 7 years after the veneers went on — which is well past the point most people stop associating a symptom with the treatment. The Australian Dental Association makes the same observation from a different angle, arguing in its policy on overseas elective dental treatment that any indemnity for adverse outcomes "should not be time limited as adverse outcomes may not become apparent for a number of years after the provision of treatment." Practical consequence: keep the records, keep attending, and report a newly sensitive or discoloured veneered tooth rather than waiting.

The preparation is only about half a millimetre. Doesn't that stay in enamel?

Less of it than the number suggests, and this is the most useful measured finding in the area. An in vitro study prepared 20 intact upper central incisors for laminate veneers to a depth of 0.6 mm, with a 0.3 mm cervical mini-chamfer, and then measured how much dentin the preparation had exposed. The means were about 30 per cent exposed dentin — 30.48 per cent for a window preparation and 30.99 per cent for a butt joint — which is to say roughly 70 per cent enamel remaining on the prepared surface. That is a pass, not a failure: the authors note the figure "is above the minimally acceptable for the enamel exposure (40%) required to obtain an efficient bond strength". Two things follow. First, the preparation design made no difference — window against butt joint, p = 0.898 — so the amount of dentin exposed is not controlled by choosing a "gentler" design. Second, and more awkward, the three operators looking at the same prepared teeth disagreed badly about what they were seeing: on the same window preparations, the general practitioner recorded 58.05 per cent exposed dentin and the prosthodontist 10.55 per cent. The authors' conclusion is that "proper training may be paramount in discriminating between prepared enamel and exposed dentin" and that "the use of magnification devices is a useful system for discriminating between enamel and dentine". So "we stayed in enamel" is a harder claim to verify than it sounds — worth asking how it is being judged. And note the starting point: these were intact incisors. A tooth already worn, eroded or carrying an old filling has less enamel to begin with.

What actually makes a veneer more likely to fail?

Three things, all knowable before anything is prepared. How much enamel is left to bond to: survival "is negatively affected by veneer preparations extending into dentin", and "high failure rates in PLVs have been associated to largely exposed dentin surfaces" — dentin is more flexible than enamel, so the ceramic carries more of the load and fractures more readily, and the adhesive bond is weaker, which also raises the decay risk at the margin. The same review notes that "when all the margins of the preparation lie on enamel the risk is lower, due to the superior bond of the adhesive in relation to dentin." Grinding and clenching: in the one study that analysed bruxism specifically, half the patient population were bruxers, and statistical analysis revealed "a significantly higher failure rate for PLV restorations in patients who were bruxers". Existing fillings in the teeth being veneered: one study found that after 18 months of follow-up, veneers crossing existing composite restorations showed more failures than veneers cemented on intact teeth. If you grind, or your front teeth already carry large composite repairs, raise it before the drill rather than after — and see TMD and teeth grinding.

How do I look after them once they are on?

The same way as teeth, with one addition and one thing to watch. The Australian Dental Association's consumer guidance is that "teeth with crowns, bridges or veneers need to be well cared for to help them last as long as possible. Brush twice per day with fluoride toothpaste and clean between your teeth every day." The addition applies to bridges rather than veneers: because the crowns forming a bridge are joined, floss cannot be passed between those teeth, and the ADA's instruction is that your dentist should show you how to clean beneath it — superfloss, floss threaders or interdental brushes. The thing to watch is the margin, because secondary caries is one of the four counted failure modes (99.3 per cent free of it at ten years in the pooled data) and it starts where the porcelain meets the tooth, which is exactly where cleaning is hardest. Expect some sensitivity, which healthdirect attributes plainly to the fact that "some enamel is removed". See What happens to my teeth after dental veneers, and will I ever get cavities? and Dental Cleans and Hygienists.

Practical details

Smile Solutions, Level 1, 220 Collins Street, Manchester Unity Building, Melbourne VIC 3000. Phone 13 13 96, or theteam@smilesolutions.com.au. Monday–Friday 8.00am–6.00pm, Saturday 8.30am–1.30pm, Sunday by appointment. Directions are on Location; enquiries go through Contact Us.

Every practitioner's registration and any specialist entry can be verified free on the AHPRA public register at ahpra.gov.au.

This page records a published article and its date, with general information. It is not a diagnosis, a treatment plan, an endorsement of any product or technique, or a promise of any particular result. Veneers and crowns are irreversible, carry risks including sensitivity, pulp death and eventual replacement, and individual results vary. Survival and tooth-reduction figures quoted above are from published research on other populations and preparations, are not predictions about any individual case, and differ in how each study defined failure. Trade names are the property of their owners and are used descriptively. Third-party published content is not reproduced.

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