CLASSIFICATION OF CRACK

Question 1

LIST CLASSIFICATIONS OF CRACK

Answer 1

1. CRAZE
2. CUSPAL FRACTURE
3. CRACKED TOOTH
4. SPLIT TOOTH
5. VRF

Question 2

DESCRIBE CHARACTERISTICS AND MANAGEMENT OF CRAZE

Answer 2

affect only the enamel. no concern beyond aesthetic.

Differentiated with transillumination

If the tooth is cracked, the light will be blocked, allowing only a segment of the tooth structure to light up; if the tooth only has a craze line, the entire tooth structure will light up

Question 3

DESCRIBE CHARACTERISTICS AND MANAGEMENT OF CUSPAL FRACTURE

Answer 3

Complete or incomplete fracture initiated from the crown of the tooth and extending subgingivally
Mesial-Distal and Buccal-lingual

MANAGEMENT:
Remove the affected cusp and restoring with a direct or a cuspal-reinforced restoration (full crown or onlay) that covers the crack margin

Question 4

DESCRIBE CHARACTERISTICS AND MANAGEMENT OF CRACKED TOOTH

Answer 4

Incomplete fracture initiated from the crown and extending subgingivally, usually directed mesiodistally
Mesial-distal. Centre of tooth

ASSESSMENT:
use wedging to test for movement of the segments to differentiate a cracked tooth from a fractured cusp or split tooth
No movement with wedging forces implies a cracked tooth.
A fractured cusp may break off under slight pressure with no further mobility.
A split tooth will show mobility with wedging forces and the mobile segment extends well below the cemento-enamel junction.

MANAGEMENT:
Depends on extent and location of crack.
INVESTIGATION:
• CRACK ON Cavity Floor—Removal of the fracture line only in the area of the cavity floor that would include the initiation of an ideal endodontic access opening is helpful in determining the apical extent of the crack and whether the pulp is involved.
•CRACK ON Proximal Surface—
Removal of the fracture line on the proximal external surface portion of the tooth below the level of the cement-enamel junction is not usually indicated, can cause the tooth to become nonrestorable.
Removal of the proximal marginal ridge and tooth structure associated with the fracture takes away sound tooth structure, thereby decreasing tooth strength and resistance to fracture.
PROGNOSIS- questionable.

Question 5

DESCRIBE CHARACTERISTICS AND MANAGEMENT OF SPLIT TOOTH

Answer 5

complete fracture initiated from the crown and extending subgingivally. evolution of crack tooth

MANAGEMENT:
EXO

Question 6

DESCRIBE CHARACTERISTICS AND MANAGEMENT OF VRF

Answer 6

complete or incomplete fracture initiated from the root at any level, usually directed buccolingually.

Minimal signs and symptoms.

Most VRF had endodontic treatment.

Having a sinus tract and a narrow, isolated periodontal probing defect in association with a tooth that has had root canal treatment, with or without a post placement is pathonomonic for the presence of a VRF.

MANAGEMENT:
EXO/ROOT AMPUTATION