Bite Optimizer
Fix the scanned bite before the design
Jaw scans often come back slightly overlapping, or barely touching. The Bite Optimizer finds the occlusal plane, moves the lower jaw out of the overlap and into contact, close to the scanned bite, and shows the contacts before and after. Then it plays the jaw's movements with the contacts shown live. It runs in the browser, and you pay only to download the lower jaw in its new bite.
How it works
- 1Scans: load the upper and lower jaw scans, exported in the bite position with the jaws closed. STL, PLY or OBJ.
- 2Plane: the occlusal plane and the midline are found from where the teeth meet and from the arch's symmetry. Drag the plane's handles to adjust them.
- 3Refine: an AI model finds the teeth on your computer, and the plane is refined from the upper central incisors and a matched pair of back teeth. Confirm it, or keep the plane from step 2.
- 4Bite: the lower jaw is shifted and turned out of overlap and into contact, staying close to the scanned bite. The contact map and the numbers show the occlusion before and after.
- 5Movements: opening, forward and side-to-side movement of the lower jaw, simulated from the plane and the bite, with the contacts shown as the jaw moves.
- 6Download the lower jaw in its new bite as STL, ready for the design.
What you see
Contact map, before and after
Each jaw coloured from 0.1 mm overlap through contact to a 0.5 mm gap, on the scanned bite and on the new one, with an image of both to download.
The numbers
Deepest overlap, contact area on the left and on the right, and the number of contact points, before and after. Tiny overlap spots, usually scan artefacts, are shown in red and left out of the numbers.
Change map
The lower jaw coloured by how far each point moved from where it was scanned: out of the scanned surface or into it.
Overlap
The lower jaw in its new bite, with the jaw as scanned drawn see-through over it, in 3D. Turn the view to look from any side.
Jaw movements
Opening, forward, to the left and to the right, with the path of the lower incisors charted. The panel names interferences and group function; the map shows where the teeth meet at each moment or over the whole movement.
The hinge
From average condyle positions (Bonwill, Balkwill), with a condylar guidance of 30° and a Bennett angle of 15°, or from a lateral X-ray you add, checked against the teeth.
When the bite is left alone
- A scanned bite with no overlap worth fixing is left as it is.
- If the fix would move the jaw more than a scan error could explain, the Bite Optimizer says so: that is more likely a different bite, to check with the clinic.
- The upper jaw never moves. When you leave the Bite Optimizer, the lower jaw goes back to the scanned bite unless you downloaded it in the new one.
Free to run, paid at the download
Loading the scans, finding the plane and the bite, the contact maps, the comparison and the jaw movements are free. Downloading the lower jaw in its new bite is a premium export, paid from your Studio balance once per pair of scans: downloading it again is free, and so is downloading the jaw as scanned. The price is on the Studio pricing page and is shown in the app before you pay. Paying needs a Cympha account.
Questions about the Bite Optimizer
- What files do I need?
- The upper and lower jaw scans, exported in the bite position with the jaws closed, as STL, PLY or OBJ.
- What does it cost?
- Everything up to the download is free. Downloading the lower jaw in its new bite is paid once per pair of scans from your Studio balance. The price is on the Studio pricing page, and the app shows it before you pay.
- Does it move the upper jaw?
- No. The upper jaw stays where it was scanned; only the lower jaw is shifted and turned.
- What do I need to run it?
- A current Chrome or Edge on a computer with a graphics card. The tooth detection in the Refine step runs on your computer with WebGPU and downloads its AI models the first time.
- How is it different from bite simulation?
- Bite simulation moves any two jaw scans through the jaw's movements. The Bite Optimizer first corrects the scanned bite, then runs the same movements from it.
Optimize a bite in Cympha Studio
Open the Bite Optimizer and load the two jaw scans.