1. Indications for Extractions and Instruments Flashcards
What are examples of pathology which might make a tooth unrestorable ?
Gross caries.
Advanced PD disease.
Tooth/root fracture.
Severe tooth surface loss.
Pulp necrosis.
Apical infection.
What are some indications for extractions ?
Symptomatic partially erupted teeth (commonly 8s).
Traumatic position.
Orthodontic indications.
Interference with construction of dentures.
What forceps should be used for extraction of upper anterior teeth ?
Straight upper anterior forceps.
What forceps should be used for extraction of upper premolar ?
Upper premolar forceps.
Describe upper molar forceps.
Two buccal and one palatal root.
So one beak and one rounded side.
How do you determine what upper molar forceps should be used for left and right side on upper arch ?
Beak to cheek.
Describe upper premolar forceps.
Two rounded sides - single buccal and palatal roots.
What is a periotome ?
Push up periodontal ligament - cuts around the PDL of the tooth.
What is the benefits of using a periotome ?
Most atraumatic way of XLA tooth - used where implants are part of treatment plan to prevent buccal bone fracture.
What is the disadvantage of using a periotome ?
Time consuming.
What is the function of using a luxator ?
Break PDL and mobilise tooth.
What are the 3 mechanical principles for tooth elevation (i.e. modes of action) ?
Wheel and axle (rotation).
Lever.
Wedge.
What is a risk associated with lever mode of action for XLA ?
Bone fracture due to large amount of force.
When would lever mode of action be used in extractions ?
Removal of retained root.
