Risks & Benefits

Question 1

What are the benefits of orthodontic treatment?

Answer 1

Appearance
–dental and/or facial
Function
Dental health
–difficult to describe
–prevention of consequences

Question 2

What does the MOCDO acryonym stand for?
What is it to help assess?

Answer 2

Missing teeth
Overjet
Crossbites
Displacements of contact points
Overbites
For assessing the index of treatment need

Question 3

What are the main risks of orthodontic treatment?

Answer 3

Decalcification
Root resorption
Relapse
Soft tissue trauma

Question 4

What are other side effects of ortho treatment? (not main 4)

Answer 4

Recession
Loss of periodontal support
Enamel fracture and tooth wear
Loss of vitality
Allergy
Poor/failed treatment

Question 5

How can you prevent decalcification?

Answer 5

Case selection (not individuals with poor motivation towards their oral health)
Oral hygiene instruction
Diet advice
Fluoride
–toothpaste, mouthwash, duraphat, others

Question 6

What is required from a patient in order for them to be a good case selection?

Answer 6

Motivated patient
Good OH pre-treatment
Low caries risk
High risk of decal indicated by
–caries history
–pre-existing decalcification
–erosion

Question 7

What is the average amount of root resorption experienced by patients?

Answer 7

1mm over 2 years of fixed appliances

Question 8

What are the risk factors for root resorption with orthodontic treatment?

Answer 8

Type of tooth movement
–prolonged, higher force
–intrusion
–large movements
–torque (root movement)
Root form
–blunt
–pipette
–already resorbed
Previous trauma
Parafunctional habits (e.g. nail biting)

Question 9

What is relapse?

Answer 9

The return of the features of the original malocclusion following correction

Question 10

What features of a malocclusion are more prone to relapse?

Answer 10

Lower incisors
Crowding
Rotations
Instanding laterals
Diastemas
Class II div 2
Anterior open bites