The document introduces the Mini Parallelometer, an instrument that shows the parallelism between dental stumps to ensure they are prepared perfectly parallel for fixed prostheses. It has two parallel pivots on the ends of two legs that can be inserted into the mouth to measure parallelism between teeth regardless of their position. This allows wax patterns to be made that do not distort and for fixed prostheses to fit perfectly on the first attempt. It is made of sterilizable titanium, comes in a small size that can fit in the mouth, and has adjustable legs and pivots to measure parallelism between teeth in both upper and lower arches.