Case Discussion: Adjusting the Bite of a Finished Denture
Posted on 07/17/2013
Dealing with an incorrect bite on a partial or complete finished acrylic denture is never easy. The teeth setup and subsequent resets are designed specifically to avoid a situation of the incorrect bite. But, inevitably, there are circumstances where the open bite was not noticed at try in, or the actual teeth position changed during processing in the lab.
For acrylic finished partial or complete dentures, the following protocol is recommended:
1. If infraocclusion (i.e. open occlusion), take a new bite using wax (either sticky wax, or pink wax). Send back the denture, the counter model and the bite. The lab will pour a new model using the denture itself and articulate with the new bite. The lab will then remove the teeth and reset in wax and return for a final try in. Assuming the bite is correct, the lab will proceed to finish based on the new position of the teeth.
2. If hyperocclusion (i.e. teeth hit prematurely), doctor should grind down the teeth to the point where patient is occluding correctly or out of occlusion. Then take a new full arch bite with wax. Lab will articulate and reset teeth in wax and return for try in. Assuming the bite is correct, the lab will proceed to finish based on the new position of the teeth.
Note: It is NOT recommended to take bites for removable using blue mouse. This is because acrylic teeth are not sharp enough to fully pierce the material, which then often leads to open occlusion.
For acrylic finished partial or complete dentures, the following protocol is recommended:
1. If infraocclusion (i.e. open occlusion), take a new bite using wax (either sticky wax, or pink wax). Send back the denture, the counter model and the bite. The lab will pour a new model using the denture itself and articulate with the new bite. The lab will then remove the teeth and reset in wax and return for a final try in. Assuming the bite is correct, the lab will proceed to finish based on the new position of the teeth.
2. If hyperocclusion (i.e. teeth hit prematurely), doctor should grind down the teeth to the point where patient is occluding correctly or out of occlusion. Then take a new full arch bite with wax. Lab will articulate and reset teeth in wax and return for try in. Assuming the bite is correct, the lab will proceed to finish based on the new position of the teeth.
Note: It is NOT recommended to take bites for removable using blue mouse. This is because acrylic teeth are not sharp enough to fully pierce the material, which then often leads to open occlusion.
