ResourcesEducation Model Examples

Model Examples

Examples of a model that may cause an appliance to not fit.


Model Example 1

Potential Causes-

  • Alginate pulled away from tray
  • Tray removed before alginate completely set up

Model Example 2
  • Use enough material in tray for accurate impression of teeth

Model Example 3
  • Impression removed from tray before alginate was completely set up

Model Example 4
  • Void in alginate material caused by not enough alginate in the tray

Model Example 5
  • Impression tray moved before alginate was completely setup

Model Example 6
  • Alginate not mixed thoroughly

Note: Stone models are preferred over plaster as they are less likely to break during shipping.


Example of a good model.


Model Example 7
  • Minimal chips, bubbles, or porosity on the occlusal surface
  • No Narrowing or pinched appearance of incisal, buccal, or lingual cusps

Login Form