2. Introduction to Extractions

Question 1

Indications for extraction (7)

Answer 1

Clinical (assessment, opinion)
Radiographic
Unrestorable teeth
Symptomatic partially erupted teeth
Traumatic position
Orthodontic indications
Interference with denture construction

Question 2

Features of straight upper anterior forceps (2)

Answer 2

For 13 to 23

Perfectly straight forceps

Question 3

Features of upper universal forceps (3)

Answer 3

For 15 to 25
Curved handle to reach further back
Curved concave tips designed to surround single convex root

Question 4

Features of upper molar forceps (2)

Answer 4

Buccal/palatal tips are different due to root formations

Beak to cheek (beak designed to engage furcation between buccal roots)

Question 5

Features of all lower forceps

Answer 5

Have a 90 degree angle

Question 6

Features of lower universal forceps

Answer 6

For 35 to 45

Question 7

Lower molar/Cowhorn forceps (4)

Answer 7

For molars
Furcation/point on both sides
Cowhorn forceps are squeezed into furcation with no rotation (tooth should squeeze out)
Cowhorns require two divergent roots

Question 8

Features of Bayonet forceps (2)

Answer 8

Z shaped

Only used for uppers

Question 9

RH extraction technique

Answer 9

Behind patient for LR
Infront for all other extractions
Upper teentje - patient flat
Lower teeth - patient almost upright

Question 10

Function of elevators

Answer 10

Loosen tooth, making it easier to remove with forceps

Question 11

Types of elevators (3)

Answer 11

Coupland’s
Cryer’s
Warwick James

Question 12

Features of Coupland elevators (3)

Answer 12

Different diameter
Move down PDL
Concave

Question 13

Features of Cryer elevators (3)

Answer 13

Come in pairs (R/L) but can be used all over
Right – when concave surface faces up, the point points left
Left – when concave surface faces up, the point points right
(Concave surfaces up, point towards each other when in corresponding hand. Usually R or L written on handle)

Question 14

Features of Warwick James elevators (£)

Answer 14

Come in sets of three (right, left, straight)
Good for wisdom teeth removal (often don’t require forceps)
One straight, two curved (Identification as with the Cryer elevators)