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Facial-Lingual Pulls

Visual Appearance: V-shaped void, trough-like.

Result: Failure to capture complete and accurate dentition.

Click to enlarge
Lingual Pulls

 

 
CAUSE SOLUTION

Exceeding the working time.

  • Follow manufacturer’s working time specifications.
  • Choose material with longer working time.

Tray movement or repositioning after seating.

  • Do not move tray after seating.

Insufficient amount of impression material used.

  • Use more material to create backflow effect.

Impression tray does not support flow of impression material.

  • Use lingual stops.
  • Use an impression tray that supports the flow of the material.



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