According to the rules and regulations of dentistry and stomatology, the thickness of wax mold should not be greater than 2.mm, and the normal thickness is between 1.5 and 2.mm. If it exceeds 2. mm, it will affect pronunciation and tongue activity.

Precautions in wax casting: The bite should not be too high, and the buccal and lingual edge of the base can be thickened appropriately, but the edge of the maxillary base should be slightly thinner to avoid increasing the discomfort of patients.