Day 2-Injuries Flashcards
What is it meant by “open” reduction?
setting of a fracture with incision and plate
What is it meant by “closed” reduction?
setting of bone without an incision or plate
What do the Ellis Classifications correspond to? (What is Ellis class I, II, III?)
Ellis class I-Fx in the enamel. Ellis class II-Fx in the dentin and enamel…Ellis class III Fx in the pulp, dentin, and enamel
With a root Fx, which type has the BEST prognosis? How do you Tx?
Fx of the Apical 1/3…cementum will grow back around it! Splint for 3 months
Whats the term for hemorrhage and edema in the PDL?
WIL SMITH. CONCUSSION
Whats the term for PDL ruptured, but tooth is not displaced?
SubLuxation
What is the survival rate for a concussed tooth?
like 95% yo
Whats the long term survival for a subluxed tooth?
like 85% yo
_______ both the PDL and pulpal neurovascular tissues are violated. Only gingival tissues retain the tooth
Extrusion
_________ :some of the apical PDL fibers are compressed
Lateral Luxation
What is the survival rate for an extruded tooth? How do you Tx?
Splint it for 4-6 weeks…about 45%
What is the survival rate for a lateral luxation?
NO bueno…25%
What is the survival rate for an INTRUDED tooth?
like 0% main.
________: The PDL and pulpal tissues are violated. There may be additional desiccation injury to the PDL.
 Treatment: Reimplant and splint for ___-___days
Avulsion…7-10 days
IF you have an open apex, what are the odds of saving a tooth if avulsed if you get it back in within 5 minutes?
55%
IF you have a closed apex, what are the chances you can get PDL healing if you place the tooth back in after 5 minutes?
50% (no pulp healing:( yet)
How long do you have to splint (wire a jaw shut) after an alveolar fracture?
4-6 weeks
Interesting…IF you are able to set the alveolus after a fracture in LESS THAN AN HOUR, what is the chance of pulp survival?
about 60%!
Duration of immobilization for a mobile tooth:
3-4 weeks
Duration of immobilization for tooth displacement:
3-4 weeks
Duration of immobilization for root fracture:
2-4 months
Duration of immobilization for a mature replanted tooth:
7-10 days
Duration of immobilization for an immature replanted tooth:
3-4 weeks
