Invisalign- A Case-Based Approach Already Passed

What are Andrews 6 keys requirements? (5) {Ans: 1. 120 non-orthodontic NORMAL models 2. teeth had to be straight 3. esthetically pleasing 4. bite which looked generally correct 5. & would not benefit from ortho treatment}Invisalign moves teeth in (small/large) increments. They can move it in _____mm {Ans: Small- 0.2mm at the largest}Invsialign Advantages over traditional fixed appliances {Ans: 1. Esthetics 2. comfort 3. less root resorption 4. oral hygiene 5. chair time 6. no emergencies 7. clincheck as a diagnostic tool 8. bruxism}How much is invasalign approximately? Lab fees? {Ans: From $1,600-1,900 Lab fees from $400-1,000}Invisalign Diasadvantages {Ans: 1. attachments are sometimes bulky & unesthetic 2. Product is marketed as invisible- some patients are disappointed when they 1st receive their aligners 3. compliance is very difficult to confirm- some patients will swear they are wearing their aligners, but their teeth are not tracking 4. molar intrusion, posterior openbites may develop 5. tooth tracking- just because clincheck says the teeth will move, doesn't guarantee such- your patient is paying for a result, not for a handful of trays to wear- you must meet your patient expectations}Less predictable tooth movement using Invisalign {Ans: 1. extrusion