Risk And Benifits Flashcards
What are the benefits of ortho
Improvement in:
Appearance
Function
Dental health
What are the psychological benefits
Improve self esteem and psychological well being
Quality of life improvement
Does ortho tx improve speech
Rarely, it ain’t a justification for tx
What can impacted teeth cause
Resorption
Prevent eruption
Associated with cyst formation
If a overjet is >6mm what risks are there
Risk of trauma to upper incisors and incompetent lips
Can crowding cause caries
No, it depends on OH and diet
Does TMD justify ortho tx
Very weak evidence
Small associations with:
-crossbite with malocclusion
-class 2 with retrusive movement
-class 3
-AOB
What risks are there
Decalcification
Root resorption
Relapse
Soft tissue trauma
Others include: recession, loss of Perio support, headgear injuries, enamel fracture, tooth wear
What is the issue of decalcification
More prone to caries
How do you prevent decal
Case selection
-motivated pt
-good OH preTx
-low caries risk
OHI
Diet advice
Fluoride
-switch to adult toothpaste if not using it
What are indicators of a pt high risk of decal
Caries history
Pre-existing decal
Erosion
How much of root is resorbed over a typical ortho fixed appliance tx
Approx 1mm over 2yrs
What teeth are more likely to have root resorbed
upper incisors>lower incisors>6’s
What Increases the risk of root resorption
Prolonged high force
Intrusion
Large movements
Torque
Root form, blunt, pipette, resorbed already
Prev. Trauma
How do you manage relapse
Change retainer
