L60. Introduction to Indications for Extractions and Extraction Technique

Question 1

What clinical indications suggest teeth are unrestorable and should be extracted?

Answer 1

• Gross caries;
• Advanced periodontal disease;
• Tooth/ root fracture;
• Severe tooth surface loss;
• Pulpal necrosis;
• Apical infection;
• Symptomatic partially erupted teeth (like wisdom teeth);
• Traumatic position;
• Orthodontic indications;
• Interference with construction of dentures.

Question 2

As a right-handed dentist, where should you position yourself to carry out an extraction of a lower molar/ premolar?

Answer 2

Behind and to the right of the patient

Question 3

As a right-handed dentist, where should you position yourself to carry out an extraction of any tooth except lower molars/ premolars?

Answer 3

In front and to the right of the patient

Question 4

What are the three basic modes of action for tooth elevation?

Answer 4

• Wheel and axle (rotation);
• Lever;
• Wedge.

Question 5

Name all of the different types of forceps:

Answer 5

• Upper straights (straight upper anterior forceps);
• Upper premolar forceps;
• Upper molar forceps;
• Upper ‘bayonet’ third molar forceps;
• Upper ‘bayonet’ root forceps;
• Lower universal forceps;
• Lower molar forceps;
• Cowhorn forceps.

Question 6

Name all of the different types of elevators:

Answer 6

• Coupland’s (1, 2 and 3);
• Cryer’s (L and R);
• Warwick James (L, R and straight).

Question 7

In what order should extraction instruments be used?

Answer 7

• Luxator;
• Elevator;
• Forceps.