Obtaining a proper construction bite is essential for the accurate fabrication of many appliances. The Per-fect Bite is one of the best devices available to help you record centric relation and occlusion; reposition a patient’s mandible; establish a vertical opening quickly and easily. And they are particularly useful when prescribing functional appliances and TMJ splints. Dr. William Clark (developer of the Twin Block Technique) recommends the Per-fect Bite for Twin Block fabrication. Available in two sizes (2mm and 4mm vertical openings).