Which of the following is true regarding preparation of custom tray for elastomeric impression:
a. Adhesive is preferred over perforation.
b. Perforation provides adequate retention
c. Adhesive is applied immediately before procedure
d. Perforations are not made in the area over the prepared tooth .
a. Adhesive is preferred over perforation.
b. Perforation provides adequate retention
c. Adhesive is applied immediately before procedure
d. Perforations are not made in the area over the prepared tooth .