Note on the initial you can see the labial surfaces of the premolars but on the progress scan you can't due to the uprighting. Also, you will need a ton of vertical elastics because you will be chasing an increasing vertical dimension and this will in the end not be the same result I would hope for and have more possibility of relapse. On the OP's case like mine would benefit immensely by some auto rotation. This reduces the anterior extrusion necessary and I prefer the three-dimensional control of an appliance with occlusal coverage. Doing cases like I am showing is very different than using fi xed, so much so, that almost invariably in retention the bite continues to deepen rather than fighting the reopening of the open bite. ■ 3/30/2017 Please help me understand this distinction. Are you saying that the teeth "know the difference" between whether or not they were moved with plastic or brackets and wires and then decide whether or not they will relapse based on that difference? That does not make sense. Or are you simply saying that your retention protocol is different with removable aligners vs. fi xed? Which could make some sense, but then you just need to apply that retention protocol regardless of how the teeth were moved, correct? ■ Str8edge Member Since: 07/17/11 Post: 12 of 21 3/30/2017 Of course teeth do not know the difference but they are different appliances and they put on different force systems. They are not simply removable braces. The most obvious difference is the occlusal coverage. So, when you put in an aligning wire the teeth are free to move in all directions but with CA they cannot extrude. A big advantage on open bite cases. And you and I on a case like this may achieve the same OB/OJ but it will not be the same three-dimensional positions. And I am of the opinion mine will be far more stable. You might not agree. Has nothing to do with retention protocol but might if ours are different. I generally do not used fi xed. ■ davidharnick Member Since: 08/28/02 Post: 13 of 21 3/30/2017 I have to agree with David. In my office, this is an Invisalign case. Request anterior extrusion/ molar intrusion. Use clear buttons on U3/L3,4 for triangle elastics until no longer needed (probably halfway through aligner series). Request 3-4mm OB at the final stage to plan for overcorrection. Yes, the patients will have anterior attachments. Works great! ■ silo113 Member Since: 06/03/09 Post: 14 of 21 3/30/2017 Join the discussion online Search: "Open Bite Help" Seems like there is more than one way to treat this open bite. Have any cases of your own to share? Head to orthotown.com and search "open bite help"-this message board will be the top result. orthotown.com \\ JUNE 2017 25http://www.orthotown.com/MessageBoard/thread.aspx?a=11&s=6&f=693&t=289919&g=1 http://www.orthotown.com