preliminary impression


pre·lim·i·nar·y im·pres·sion

in dentistry, an impression made for the purpose of diagnosis or the construction of a tray. Synonym(s): primary impression

pre·lim·i·nar·y im·pres·sion

(prĕ-limi-nar-ē im-preshŭn) In dentistry, impression made for purpose of diagnosis or construction of a tray.
Synonym(s): primary impression.