Interdisciplinary Adult Orthodontics

Question 1

FACTORS TO CONSIDER IN THE PRESERVATION OF A TOOTH
(5)

Answer 1

Possible role of orthodontics
Value to the occlusion
Restorability
Periodontic condition
Endodontic condition

Question 2

Ferrule Effect
(2)

Answer 2

• A BAND OF DENTIN (1MM) BETWEEN THE POST
  AND THE INTERNAL LINE OF THE CROWN
• IMPROVES PROGNOSIS DRAMATICALLY AND
  REDUCES THE RISK OF ROOT FRACTURES

Question 3

Selection Criteria
(5)

Answer 3

Crown root ratio
Root anatomy
Amount of extrusion
needed
Relevance to keep the root
Esthetic concerns.

Question 4

PREPARATION FOR EXTRUSION
* YOU MAY NEED A — UNTIL ROOT
IS EXTRUDED
* TEMPORARY CROWN CEMENTED PERMANENTLY

Answer 4

TEMPORARY POST

Question 5

The gingival line became uneven
* Orthodontic extrusion may result in an — gingival line
* — can decrease the extent of the lowering if the gingival crest

Answer 5

uneven
Fiberotomies

Question 6

One of the advantages of orthodontic extrusion is that it significantly reduces the

Answer 6

amount of bone recountouring of adjacent teeth during the CCL procedure

Question 7

Bracketing
(5)

Answer 7

Segmented technique: 2 to 3 brackets on each
side of the tooth to extrude
Passive bracketing
High force wire ( with or without loops)
Fiberotomy every 3 weeks
Acceptable temporary crown

Question 8

Rapid Extrusion: Heavy force=Rapid movement
* — wire with
bends to place large
extrusive forces
* Goal is to —
* Activate wire 1mm every –
weeks

Answer 8

0.017x0.025 Beta titanium
rectangular
extrude the tooth
while maintaining the
alveolar level.
3

Question 9

Fiberotomies every 2-3 weeks
* Minimize the descent of the
—
* Severing the supracrestal
fibers reducing the effect
on the —

Answer 9

alveolar bone
alveolar bone

Question 10

Stabilization
(3)

Answer 10

• 8 weeks post-final orthodontic tooth movement
• Keep the appliance in a passive state
• Let the gingival tissue reorganize and remodel