SELECTION OF POSTERIOR TEETH

SELECTION OF POSTERIOR TEETH

SIZE OCCLUSAL FORM SHADE MATERIAL

SIZE

BUCCO LINGUAL WIDTH

THE WIDTH IS LESS THAN NATURAL TEETH.

OCCLUSO GINGIVAL HEIGHT

ACCORDING TO THE INTER ARCH SPACE

MESIODISTAL WIDTH

THE DISTANCE BETWEEN THE DISTAL SURFACE OF THE LOWER CANINE AND THE INCLINED PLANE.

OCCLUSAL

FORM

ANATOMIC

NONANATOMIC (MONOPLANE)

INDICATIONSNON ANATOMIC

CLASS III ANGLE, WITH CROSSBITE.

FLAT AND FLABBY RIDGES.

ANATOMICNORMAL JAW

RELATIONSHIPWELL DEVELOPED

RIDGES.

SHADE

SHOULD FOLLOW THE ANTERIOR TEETH, OR

DARKER.

MATERIAL

PROPERTY ACRYLIC PORCELAIN

1-COMPOSITION. POLYMETHYL METHACRYLATE

FELDSPATHIC PORCELAIN (HIGH

FUSING)2-SPECIFIC GRAVITY. LOW HIGH

3-RESISTANCE TO WEAR AND ABRASION.

WEAR EASILYRESIST ABRASION

AND WEAR (PRESERVES V.D)

4-EASE OF ADJUSTMENT. EASY DIFFICULT

5-RESILIENCY. RESILIENT BRITTLE6-SOUND ON OCCLUSION. NO CLICKING CLICKING

7-EFFECT ON UNDERLYING

TISSUES.HARMLESS HARMFUL

8-METHOD OF UNION WITH

DENTURE BASE.CHEMICAL BOND MECHANICAL BOND

9-EFFECT OF DIRECT HEAT. AFFECTED NOT AFFECTED

10-INDICATIONS*NARROW

INTERARCH SPACE*FLAT AND FLABBY

RIDGES

*WIDE INTERARCH SPACE

*WELL DEVELOPED RIDGES.