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Tooth-Borne Case 2 · Reconstruction

Rebuilding Worn Teeth Without Replacing Them

Severe tooth wear, and a bite that had collapsed with it.

His teeth were less than half their normal size. His gums had overgrown to compensate. The bite had closed down so far that there was no room left to fit new teeth into.

The question in a case like this is never only how to rebuild. It is whether the teeth need to come out at all.

The result
His smile after treatment
Arrival

What he came in with

He came in for how it looked. Teeth worn short enough to have aged his whole face. A smile that no longer showed when he smiled.

The rest came out during the examination, the way it usually does. Function that had quietly narrowed around him. A bite that was not doing what a bite should. And a sleep and breathing pattern that turned out to be part of the cause rather than a separate problem.

Before
Before treatment: at rest, smiling, and on a full smile
Before
The same three expressions close in, showing the worn upper and lower teeth meeting at a flat, even edge
The urgency

What the occlusal views showed

From the front, the teeth are visibly reduced and the gum has grown down over them. From the side, more obvious still.

The views from above are the ones that matter. The wear had gone through the enamel and into the dentine, the softer tissue underneath. Once a mouth reaches that phase, wear accelerates. What took years starts taking months.

That is why this needed intervening in quickly, before he lost the teeth altogether.

Retracted, from each side and the front

The worn teeth from one side before treatment
Retracted front view before treatment: short, worn teeth meeting edge to edge, with a thick band of gum above them
The worn teeth from the other side before treatment

From above

The upper arch before treatment, seen from below: the biting surfaces cupped where enamel has worn through to the softer dentine underneath
The lower arch before treatment, seen from above, showing the same cupping across the back teeth
Why teeth wear

Attrition, abrasion, erosion

Teeth wear for reasons that are rarely singular. Grinding. Acid erosion. Brushing too hard. Sleep apnea.

Then the body compensates, which is the part most people never hear. As the teeth shorten, it builds bone, gum and cementum, and the teeth erupt further into the closing space. So the bite height often does not drop at all. Something subtler happens instead: the gum visually thickens while the teeth get shorter.

His mouth was doing both. Real collapse of the bite, wear on top of it, and compensation running alongside.

The diagnosis

The questions that come before the plan

How much of this is compensation? Have the spaces closed? How much room is there to open the bite, and will opening it disturb the joints? And how much root length is hiding under the gum, long enough to anchor a restoration?

Rebuilding worn teeth to their original size is one of the central sciences of prosthodontic training. The difficulty is not the building. It is knowing what you are building into.

The airway

Why sleep is part of a dental diagnosis

Grinding is not really a dental habit. Sleep research reclassified it as a sleep related movement disorder years ago. Episodes cluster around micro arousals, the brief surfacings out of deep sleep nobody remembers, and a body fighting for air arouses again and again, clenching and grinding while it does. This is why the sleep literature keeps finding tooth wear alongside disordered breathing.

The prosthodontic literature supplies the other half. Bruxism is one of the most consistently reported risk factors for mechanical failure in full mouth reconstruction: chipped ceramic, fractures, loosened screws. The forces that destroyed the original teeth are still in the room when the new ones go in.

So it was diagnosed and treated alongside the teeth, in coordination with a sleep physician. It works in both directions too: opening a bite correctly can improve the airway in its own right. With he that was managed from the start, and it is a large part of why the restoration is still doing its job.

The plan

Uncover the teeth rather than remove them

He had more going for him than the photographs suggest. His gums were healthy, with no gum disease, and beneath those three or four millimeter teeth were long, solid roots.

So the plan was to find the tooth that was already there, in two stages. First, temporaries with the bite opened back up, which restored the space and made clear what remained to solve, because the gummy smile was still there.

Second, crown lengthening, aesthetic and functional, designed before it was performed and executed through surgical guides that place the gum exactly where the final restorations need it. Reshaping the gum and the small bony housing around it exposes the good tooth structure underneath and captures the length to support new teeth.

Which is what avoids overtreatment: removing every tooth and putting a relatively young man into implants or dentures, more aggressive than his situation ever called for.

The guides

The surgical guides off the mouth, the arches after crown lengthening, and the guides seated over them

The structure uncovered

Three front views after crown lengthening: the exposed tooth structure, and the guide seated over it to check the planned line
The provisional

Ideal tooth heights, tested before they are made permanent

With the tissue healing, he went into provisional restorations at ideal tooth heights, and lived in them.

Full function, aesthetics and phonetics were tested, understood and improved on. Nothing final was made until he approved what he was already wearing.

The upper and lower provisional restorations together at the tested height
Smiling in the provisionals at four months
Four months into healing, wearing the provisional restorations
The final restoration

Where the detail decides the decade

The final ceramics were built to ideal shape and contour, with the bite opened into its ideal position.

They are controlled rather than simply fitted. Crown margins that seat perfectly, so the gum is never irritated. Proper contacts between the teeth. Correct emergence. A smile that works as a smile, and a bite that works as a bite.

None of that is visible in a photograph. All of it is why the result is still there.

The finished restorations, front on and retracted

Where the margins sit

Close view of the upper front restorations where they meet the gum, the tissue sitting tight and unirritated against the margins
Close view of the lower front restorations at the gum line, with the papillae filling the spaces between them
The restorations in occlusion, the upper and lower meeting at the rebuilt bite height
Before and after

The wear is cured

The bite restored, the space recovered, the tooth heights corrected, the breathing improved. From above, the wear is gone and the biting surfaces are strong, stable and even.

What the photographs show is more than dentistry. His demeanor, his face and his vitality have all changed. He looks youthful, and he is a more vibrant person for it.

Front on

Before
Retracted front view before treatment, the worn teeth meeting edge to edge
After
Retracted front view after treatment, the teeth restored to full length and the bite opened

The upper arch

Before
The upper arch before treatment, the biting surfaces cupped through to dentine
After
The upper arch after treatment, every biting surface restored

The lower arch

Before
The lower arch before treatment
After
The lower arch after treatment

From the side

Before
The teeth from one side before treatment
Before
The teeth from the other side before treatment
After
The first side after treatment, at the rebuilt height
After
The other side after treatment

The smile

Before
The worn upper teeth on a smile before treatment, at a flat, even edge
After
His smile after treatment

The face

Before
Before treatment, lips at rest
After
After treatment
Follow up

We see everybody, regularly

He was reviewed at four years and looked great. He has now been functioning in this restoration for five to six years with very few problems, because the functional and medical causes were treated alongside the teeth.

Many patients treated the same way have been followed for ten, fifteen and twenty years. They are all holding up nicely.

Why a prosthodontist

If your teeth can be saved, they get saved

A prosthodontist can save teeth when saving them is the right answer, and there is nothing better than your own teeth.

That decision is made openly with you: the prognosis, the risks, the benefits, and an honest cost-benefit analysis of every route available. For severe wear, the right answer is often this one. A classical full mouth reconstruction, supported by your own teeth.

Every case is planned around one person's anatomy. Individual results vary, and what was right for this patient may not be right for you.