Partial Veneer Crowns

Question 1

Types?? (4)

Answer 1

1. 3 quarter crown
2. Reverse 3 quarter crown
3. One half crown or mesial half crown
4. 7 8th crown

Question 2

What’s one half crown?

Answer 2

It’s a 3 quarter crown rotated at 90°…

Question 3

Which surface is preserved or remains UNTOUCHED in one half crown?

Answer 3

DISTAL

Question 4

When is one half crown used?

Answer 4

Tilted MAND Molars

Question 5

C/I of one half crown?

Answer 5

If there r BLEMISHES on distal side…

Question 6

When r the REVERSE 3 quarter crown used?

Answer 6

LINGUAL surface preserved or UNTOUCHED… So obviously used in mand molars with severe LINGUAL inclination…
It prevents the LARGE DESTRUCTION of tooth structure that would occur if CVC is used… (NC)

Question 7

What’s 7 8th crown?

Answer 7

Covers occlusal + all axial surfaces… With the Buccal surface covered partially…

Extended Upto buccal developmental groove….(extension from DISTAL side.. to Buccal side that is…)

Question 8

Which cusp is not veneered in 7 8th crown?

Answer 8

MESIOBUCCAL cusp…

Question 9

7 8th crown… When indicated?

Answer 9

Max Pm n molars…

Question 10

Adv of 7 8th over 3 4th?

Answer 10

More retention n resistance as more tooth surface Covered… (Simple!)