The overall, combined height of both maxillary and mandibular models should be how many inches?
2.5-3.0 inches. This combined height is most esthetically pleasing while maintaing the integrity of the oral structures.
List the basic steps in model trimming.
1. Remove small nodules on the casts with a wax spatula 2. Trim the anterior borders 3. Trim the posterior surface of the maxillary model perpendicular to the marked midline 3. Trim the base of the maxillary model parallel to the established plane (pencil line) 4. Trim the back of the mandibular model until it is even with the back of the maxillary model 5. Trim the base of the lower cast so it is perpendicular to the backs of both casts and parallel to the base of the maxillary cast. 6. Trim the lateral borders.
True or False? The anterior of the upper cast has a point at the midline, but the anterior of the mandibular cast is rounded.