FABRICATION OF ESSIX RETAINERS
1. Because accuracy of the impression is paramount, it is recommended that a polyvinyl siloxane (PVS) system be used . This is especially true for accurately recording cuspid to cuspid retaining points. Since full arches have many retaining points alginate (Cavex) may also be used.
2. Use Debubblizer in both the impression and stone mix
3. Use die stone (Essix stone) for dimensional accuracy.
4. By placing a “cola” can tab into the distal extent of the impression a neat stone model can be poured .
5. The resulting cast should be trimmed so that its height is no more than 3/4″ (2cm) which aids vacuum adaptation of the Essix plastic
