Philosophy of Aligner Therapy

Question 1

Tooth Positioner
(2)

Answer 1

• Results based on technician
  experience
• No sequential alignment
  available

Question 2

In the 20th century . — were the standard of care to
treat the vast majority of
malocclusions

Answer 2

Brackets and
wires

Question 3

The 21st century has seen 3D
— “become” the standard
of care.
— is the leading company in
individual CAD CAM printing.

Answer 3

CADCAM
Invisalign

Question 4

Turning Point
* — technology allows for modelization of orthodontic
movements (CAD)
* Fabricate — corresponding to the desired
treatments

Answer 4

CAD CAM
sequential aligners

Question 5

CADCAM
* This technology is – years old
* Constantly changing and evolving
* Considerable improvements over the years

Answer 5

25

Question 6

Aligner Therapy
(early 2000’s)
(5)

Answer 6

• Minor alignment
• Limited correction of
  rotations
• No predictable
  vertical control
• Clear aligners push
• Clear aligners do not
  pull

Question 7

Simple force applied to the crown
* The line of action is at a

• A moment of force is
  created by the —

Answer 7

distance from the center
of resistance

force

Question 8

Aligners alone are not enough
* The majority of treatments
may require the use of:
(5)

Answer 8

• Attachments
• Elastics
• Power ridges
• Bite ramps
• (G5 software + Smart track)

Question 9

Attachments
(4)

Answer 9

• Correct rotations
• Improve root movement
• Anchorage
• Extrusion

Question 10

Precision cuts
* Elastics:
(4)

Answer 10

• Class II mechanics
• Class III mechanics
• Increase anchorage
• Correct midlines

Question 11

Bite ramps
(4)

Answer 11

• Used to open the bite
• Placed by technician
• Level de curve of Spee by
  extruding and uprighting lower
  molars
• Less proclination of lower
  incisors

Question 12

Power ridges
Labio-lingual torque
(3)

Answer 12

• To place torque on teeth
• Placed on the aligner
• NOT on tooth surface

Question 13

Clear Aligner Therapy
Advantages
(5)

Answer 13

• Individualize tooth movement in 3 planes of space
• Move teeth sequentially
• Anchorage control
• Disocclude teeth but still vertical control
• Continuous technological improvement

Question 14

Most common errors
* Limiting the scope of the technique to:
(5)

Answer 14

1. Intraoral scanning or impressions
2. Send case to the company
3. Automatic acceptance of Clincheck
4. Aligner delivery to patient
5. What to do when treatment does not proceed as planned??

Question 15

Invisalign is a full —

Answer 15

orthodontic appliance

Question 16

Abide to the same biological rules as —

Answer 16

conventional brackets

Question 17

• Do not over—
• Do not over—-
• — knowledge before treating pts

Answer 17

expand
procline
Orthodontic

Question 18

• In less than – years, Invisalign has become a
  recognized orthodontic modality delivering quality
  orthodontic appliances.
• It has revolutionized the way orthodontic treatment is
  delivered.
• This is only the beginning! We will not stop “progress”

Answer 18

12