Better jaw surgery planning with overjet measurement
Part of Mouth & dental clinical trials.
This study tests a better way to plan lower jaw advancement surgery for people with a significant overbite (Class II malocclusion). It uses a clinical measurement (overjet) to guide the surgery, aiming for more accurate results.
Summary written for real people, not researchers, by Clin2.
Who can take part
- Your upper and lower jaw alignment must be off by at least 4 degrees (ANB angle 4 or higher).
- Your overjet (the horizontal distance between upper and lower front teeth) must be 4 millimeters or more.
- You must have a Class II malocclusion, meaning your upper molars are at least half a tooth ahead of your lower molars.
- You must not be missing any permanent teeth (excluding wisdom teeth).
- You must not have had braces or other orthodontic treatment before.
- You must have good overall health without any bone or major health conditions affecting your jaw.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
Similar studies
Other trials that look related to this one.
This study compares two early braces treatments for children with a large overjet and a specific bite problem. It looks at which approach works better before moving on to full braces.
This study tests two ways of placing small temporary anchors (mini implants) in the jaw to help pull upper front teeth back into a better position. It is for patients who have finished growing and have a Class II overbite, to see which anchor location works best.
This trial compares two types of braces (aesthetic functional appliances and twin blocks) to fix ‘overbite’ where the lower jaw is too small and the upper teeth stick way out. It’s for kids/teens who are still growing and haven’t had braces before.
This study tests two different braces that help guide the jaw into a better position as a child grows. The goal is to see which one improves the airway and jaw joint while correcting the bite.
This trial studies how well a treatment plan works when you start with jaw surgery and then use clear aligners for orthodontic (teeth/jaw) finishing. It may help people whose jaw growth/position problems are mainly due to the lower jaw being too far forward or the upper jaw being too far back.
This trial compares two dental appliances—Twin Block and Myobrace—to see which one better improves your airway and facial shape during the teenage growth spurt. If you have a set-back lower jaw and moderate overbite, participating could help guide your jaw growth and breathing.
Hear when a new Overjet trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.