Lecture 2

Question 1

What is a retentive clasp?

Answer 1

they oppose each other when designed correctly. Retention at each principle abutment should balance that of the tooth on the opposite side of the arch (equal in magnitude and opposite in relative location)

Question 2

What part of the retentive arm flexes? Where should it be positioned relative to height of contour?

Answer 2

the terminal 3rd. should be below the crest of contour

Question 3

Where should the rigid portion of a retentive arm be placed on a tooth relative to the crest of contour?

Answer 3

should be above the crest of contour