An interventional study of orthognathic surgery ,lefort 1,bsso ,DO and distraction osteogenesis in Maxillary Hypoplasia, Cleft Lip Palate and Orthognathic Surgery, sponsored by Assiut University. Not yet recruiting. Open to participants aged 12 Years to 40 Years. Per ClinicalTrials.gov, last updated 2025-02-28.
Sponsored by Assiut University · Not applicable, Interventional, and Treatment
Maxillary hypoplasia in CLP deformities results from congenital reduction in midfacial growth and the effects of the surgical scar from CLP repair.Turvey et al. suggested that this disproportionate jaw growth is the biologic consequence of prior surgical intervention for closure of the soft tissues and is not related to the congenital cleft deformity, Midfacial hypoplasia is commonly treated by performing conventional Le Fort surgery to displace the maxilla anteriorly and stabilization afterward with rigid fixation along with orthodontics treatment. .
Midface hypoplasia cleft patient has the following characteristics: concave facial profile, inverted nasal tip, wide alar base, acute nasolabial angle, and excessive exposure of sclera. Intraoral findings are anterior and posterior crossbite, CLP, accentuated curve of Spee, Class III dental malocclusion, multiple missing teeth, oronasal communication, and residual cleft. Speech disturbances are also usually present due to velopharyngeal incompetency and oronasal communication.
62 studies on the registry are indexed under Retrognathia; 15 are open to participants now.
This study's planned enrollment of 22 is below the median of 34 across 52 interventional studies indexed under Retrognathia.
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Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
modern surgery-first orthognathic surgery approach (reduced treatment time, efficient tooth decompensation, and early improvement in facial esthetics),
Procedure: orthognathic surgery ,lefort 1,bsso ,DO · Procedure: distraction osteogenesis
orthodontics first then surgery
Procedure: orthognathic surgery ,lefort 1,bsso ,DO · Procedure: distraction osteogenesis
Le Fort I osteotomy is often used in the correction of dental occlusion and maxillary hypoplasia in cleft patients. In addition, the osteotomy may also improve patients' facial appearance and self-esteem
Distraction osteogenesis is a surgical technique that uses body's own repairing mechanisms for optimal reconstruction of the tissues.
CEPHALOMETRIC
MAXILLARY COMPONENT SNA (degrees) Sella to Nasion to point A angle normal angle is 82 degree plus or minus 3 degree
Time frame: 1 year
facial canons
the rule of fifths, which divides the face in the transverse dimension into five equal parts by assuming that the intercanthal distance is equal to the nasal width and widths of the eyes, incorporates orbital and orbito-nasal canons and three equal lengths of the face (the forehead, the nose, and the mouth and chin), as well as the intercanthal distance being equal to the eye fissure length measurement are in cm
Time frame: 1 year
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