I'm planning on getting double jaw surgery with Dr. Ramieri to correct multiple flaws in my appearance. I had my video consultation with him in 2024, and now I'm finished with the pre-surgical orthodontics, the surgeon has my CBCT scans and he's sent me a surgical plan for me to evaluate.
My facial flaws are as follows:
1). midline deviation (2mm)
2). overjet
3). asymmetric mandible (one jaw corner is "rounded", the other is "square")
4). vertical maxillary deficiency (limited upper tooth show)
5). flat occlusal plane (2.8°, this gives me a "flat" smile line, rather than a curved smile line, in which the lower edge of the upper teeth follow the upward curve of the lower lip)
6). lips that appear thin and downturned, creating a "saddened" appearance.
Here's a link to the surgeon's plan:
https://drive.proton.me/urls/44N7RFZ6VW#pZl6heqxgUDbAs you can see, his plan corrects the first three problems perfectly. I'm just not certain about other things though:
He set the occlusal plane to 8.0°. I requested that number because based on my research, the ideal range is 4 - 12, with 8 being the ideal (I could be wrong). I'd like to create a nice smile arc.
He downgrafts my maxilla, doing 8 mm in the front and 6 mm in the back, increasing the height of my lower facial third, and increasing upper tooth show. The rotation increases my occlusal plane angle.
Points of Concern:Measurement (°) Pre-Operative 3D Planned 3D Delta 3D
SNA 86.5 87.1 0.5
SNB 84.4 85.3 1.0
ANB 2.2 1.9 -0.3
Maxillary Occlusal Plane 2.8 1.2 -1.6
If you look at the "Measurement" panel on Page 17, which I've reproduced above, all the numbers look a bit odd, the SNA/SNB values have both increased, even though they were already higher than normal values of 82° +/- 2° and 80° +/- 2°, respectively. Is something wrong here? Shouldn't the SNA/SNB numbers be decreasing, rather than increasing? (The occlusal plane angle is listed as being 1.4° post-operatively, which is probably a typing error)
For what it's worth, I was told by one of the orthodontists that I consulted with, that I have "bimaxillary retrusion". Could this be what's going on with my SNA/SNB angles? Many examples of surgical correction of a "short face growth pattern" involve not only downgrafting and rotating, but also a horizontal advancement of both jaws. It also makes me wonder if my lips would appear fuller if the jaws were moved forwards, or if that unnecessary.
Questions:1). If I advanced both jaws, rather than just the lower jaw, would it:
-improve my nasolabial angle?
-affect my nose negatively?
-improve the appearance of my lips?
-correct my SNA/SNB angles?
I'm basically just want to know if I'd benefit from horizontal advancement.
2). Is the occlusal angle of 8.0° ideal for my smile arc, or does the ideal occlusal angle vary with each individual? Should I have chosen a different angle?
I've attached links to two photo galleries. The first link comprises the 20 or so miscellaneous photos I sent to my surgeon; my mouth shape, CBCT scans, surgical example photos, et cetera.
https://imgur.com/a/Gd2PqvrThe second link is a set of 9 professional photos of my face from various different angles.
https://imgchest.com/p/ne7brpnajy5Here's a link to my previous thread from 2024.
https://jawsurgeryforums.com/index.php/topic,8726.msg80326.html#msg80326Thank you!