Autosomal dominant prognathism
MONDO:0008312Malocclusion in which the mandible is anterior to the maxilla as reflected by the first relationship of the first permanent molar (mesioclusion).
Also known as: 'Habsburg jaw', 'Hapsburg jaw', Habsburg jaw, Hapsburg jaw, prognathism mandibular, prognathism, mandibular
21 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsBroader categories
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New dental device aims to fix underbite without surgery
Disease control CompletedThis study tested a special dental appliance to correct underbite (Class III malocclusion) in 36 children aged 7 to 12. The device combines a fixed inclined plane on the lower front teeth with rotated brackets on the upper front teeth to encourage proper jaw growth. After 6 month…
Phase: NA • Sponsor: Can Tho University of Medicine and Pharmacy • Aim: Disease control
Last updated Jun 27, 2026 12:33 UTC
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New jaw surgery shows promise for cleft lip and palate patients
Disease control CompletedThis study tested a modified jaw surgery (Le Fort I osteotomy) in 9 adults with cleft lip and palate who also had a misaligned bite and a bone gap in the upper jaw. The surgery aimed to improve facial structure and reduce the size of the bone defect. Researchers measured changes …
Phase: PHASE4 • Sponsor: Alexandria University • Aim: Disease control
Last updated Jun 27, 2026 09:07 UTC
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New palatal plate may improve underbite correction in kids
Disease control CompletedThis study tested two methods to correct underbite (skeletal Class III malocclusion) in 14 growing children. One group used a traditional tooth-borne anchor with a face mask, while the other used a palatal plate with a face mask. The goal was to see which approach better moves th…
Phase: NA • Sponsor: Faculty of Dental Medicine for Girls • Aim: Disease control
Last updated Jun 27, 2026 08:12 UTC
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New face mask technique may fix underbite without surgery
Disease control CompletedThis study tested two ways to pull the upper jaw forward in 40 children aged 7-13 with underbite. One method used a traditional face mask attached to teeth, the other used tiny screws placed in the cheekbone. Both followed a special expansion protocol. The goal was to see which a…
Phase: NA • Sponsor: Murat Kaan Erdem • Aim: Disease control
Last updated Jun 27, 2026 08:03 UTC
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Which jaw correction works best? study tests three methods in kids
Disease control CompletedThis study compared three treatments for children aged 9-12 with a forward lower jaw (Class III malocclusion): a face mask with expander, a mini maxillary protractor, and a chin cup with elastics. Fifty-five children were treated, and researchers measured changes in facial bones …
Phase: NA • Sponsor: TC Erciyes University • Aim: Disease control
Last updated Jun 27, 2026 07:51 UTC
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Less invasive jaw surgery may change face shape differently, study finds
Knowledge-focused CompletedThis study looked at 31 people with a type of jaw misalignment called skeletal Class III deformity. Researchers compared how the face's soft tissues changed after two types of jaw surgery: a minimally invasive approach and a conventional one. Using 3D imaging, they measured diffe…
Phase: NA • Sponsor: TC Erciyes University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:36 UTC
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New study measures how well Surgery-First fixes jaw problems
Knowledge-focused CompletedThis study looked at a treatment called "Surgery-First" for people with a severe underbite (skeletal Class III malocclusion). Instead of wearing braces before surgery, patients had jaw surgery first to fix the bone problem, then braces afterward. Researchers studied 60 patients u…
Phase: NA • Sponsor: Hanoi Medical University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:35 UTC
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Timing of jaw surgery may affect tooth roots and facial changes
Knowledge-focused CompletedThis study looked at 24 adults with a specific jaw misalignment (Class III) who needed double-jaw surgery. Researchers compared two different surgical timings—surgery first versus surgery early—to see how they affected tooth root length and volume, as well as facial soft tissues.…
Phase: NA • Sponsor: Gokhan Coban • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:00 UTC
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Gene sequencing uncovers mysterious fetal malformations
Knowledge-focused CompletedThis study tested whether a powerful DNA test called high-throughput exome sequencing can find genetic causes of multiple birth defects in fetuses when standard exams fail. Researchers studied 100 fetuses with at least two malformations and no prior diagnosis. They compared the n…
Sponsor: Centre Hospitalier Universitaire Dijon • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:03 UTC
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Speedy gene test aims to give answers on birth defects in just 7 days
Knowledge-focused CompletedThis study tested whether a fast type of genetic test called rapid genome sequencing can find the cause of birth defects seen on ultrasound more quickly than current methods. Researchers included 184 pregnancies with certain ultrasound findings. The goal was to see if results cou…
Sponsor: Centre Hospitalier Universitaire Dijon • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:00 UTC
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Custom jaw implants put to the test: will they improve surgery precision?
Knowledge-focused CompletedThis completed study looked at how accurately a custom-made implant (called a PSI) could reposition the lower jaw during surgery for overbite or underbite. Eight patients aged 18-40 who needed jaw surgery received the custom implant. The researchers compared the planned jaw posit…
Phase: NA • Sponsor: Faculty of Dental Medicine for Girls • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:56 UTC