Survey Results

additional_studies_date: 
May 2008

Invisalign - CR Evaluator Survey on Non-Conventional Movement of Teeth

Unless otherwise noted, n=43 dentists responding to the Invisalign Survey.

1. How long have you used the Invisalign system?


Mean 4.2 years
Frequency
Percent
1-3 years
14
32.6%
4-6 years
17
39.5%
7-9 years 8
18.6%
< 1 year
4
9.3%


 

 

 

 

 

 

 

 

2. Learning curve of invisalign is:

Frequency
Percent
Moderately Difficult
24
55.8%
Easy 19
44.2%

 

 

 

 

 

3. Ability to achieve treatment goals with Invisalign is:

Frequency
Percent
Good 32 74.4%
Excellent 6 14.0%
Fair 4 9.3%
Poor 1 2.3%

 

 

 

 

 

 

 

4. Time to reach treatment goals with Invisalign is:

Frequency
Percent
Good 27 62.8%
Excellent 8 18.6%
Fair 7 16.3%
Poor 1 2.3%

 

 

 

 

 

 

 

5. Dentist satisfaction with the Invisalign system overall is:

n=42
Frequency Percent
Good 19 45.2%
Excellent 15 35.7%
Fair 7 16.7%
Poor 1 2.4%

 

 

 

 

 

 

 

6. Patient satisfaction with Invisalign system is:

Frequency
Percent
Excellent 23 53.5%
Good 18 41.9%
Fair 2 4.7%

 

 

 

 

 

 

7. Company support has been:

Frequency
Percent
Good 19 44.2%
Excellent 15 34.9%
Fair 6 14.0%
Poor 3 7.0%

 

 

 

 

 

 

 

8. Training received was:

Frequency Percent
Good 23 53.5%
Excellent 10 23.3%
Fair 8 18.6%
Poor 2 4.7%

 

 

 

 

 

 

 

9. How many cases have you treated with Invisalign?

Full Mouth
Mean 41.5
Min 1
Max 285
Median 20

 

 

 

 

Single Arch n=27
Mean 5.74
Min 0
Max 30
Median 2

 

 

 

 

 

10. Why did you choose to treat with Invisalign instead of traditional orthodontics?

Frequency Percent
Patients prefer / Don't want 20 46.5%
Simple cases 7 16.3%
East 7 16.3%
Esthetics 5 11.6%
Better oral hygiene 5 11.6%
No need for ortho training 3 7.0%
Less time required / Faster 3 7.0%
Good results 1 2.3%
Other 6 14.0%

 

 

 

 

 

 

 

 

 

11. Why have patients accepted Invisalign treatment vs traditional methods?

n=42
Frequency Percent
Esthetics 39 92.9%
Ease 22 52.4%
Ease of oral hygiene 21 50.0%
Less irritability in mouth 17 40.5%
New / Cutting edge 14 33.3%
Lenth of tmt 10 23.8%
Pricing 5 11.9%
Other 6 14.3%

 

 

 

 

 

 

 

 

12. What adverse affects have you observed using Invisalign?

n=37
Frequency Percent
Patient compliance issues 9 24.3%
Difficult movements 8 21.6%
None 5 13.5%
Hard to extrude 3 8.1%
Pain 3 8.1%
Rotation issues 2 5.4%

 

 

 

 

 

 

 

13. What is the age range of the patients you have treated?

n=41
Median 40
Min 12
Max 83

 

 

 

 

 

14. What are your typical fees for Invisalign treatment?

To you the dentist from the company?

n=41
Mean 1550
Median 1500
Min 870
Max 2500

 

 

 

 

To the patient?

Mean 4750
Median 5000
Min 3000
Max 6200

 

 

 

 

 

15. From your experience, what types of cases can be served by Invisalign?

n=40
Frequency Percent
Crowding 22 55.0%
Spacing 10 25.0%
Class I 9 22.5%
Rotation 5 12.5%
Relapse 5 12.5%
Everything 5 12.5%
Class II 3 7.5%
Class III 2 5.0%
Tipping 2 5.0%

 

 

 

 

 

 

 

 

 

16. From your experience, when is use of Invisalign not indicated?

n=41
Frequency Percent
Major Movement 31 75.6%
Class III 11 26.8%
Class II 10 24.4%
Non-Compliant Pt/Children 8 19.5%
Intrusion/Extrusion 3 7.3%

 

 

 

 

 

 

 

17. If you have used other "non-traditional" orthodontic products, how does Invisalign compare to it?

n=41
Frequency Percent
Haven't used 20 48.8%
Better 17 41.5%
Same 3 7.3%
Worse 1 2.4%

 

 

 

 

 

 

18. Comments

n=29

Frequency Percent
Case selction is key 4 13.8%
Another treatment 3 10.3%
Outcome is fair/needs refinement 3 10.3%
Good tool 2 6.9%
Experience 2 6.9%
For patients concerned w/ esthetics 2 6.9%
Company support could be better 2 6.9%
Expensive 2 6.9%
Good service for patients 1 3.4%
After orthodontic treatment 1 3.4%
Very happy 1 3.4%
Foolish for those not trained in ortho 1 3.4%
Class II better for technique 1 3.4%
Direction ortho is going 1 3.4%
No before or after casts 1 3.4%
Worth it 1 3.4%
Other 1 3.4%