Maxillary Hypoplasia Secondary to Cleft Lip and Palate repair
Conditions
Interventions
Observation group: Combined traction group:None
Control group: Orthognathic surgery group:None
Sponsors
Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
Eligibility
Sex/Gender
All
Age
10 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Patients diagnosed with secondary skeletal Class III malocclusion following cleft lip and palate repair. 2. Study group: patients undergoing single-jaw surgery (maxillary distraction osteogenesis); Control group: patients undergoing bimaxillary orthognathic surgery. 3. Aged =10 years, in the late or post-pubertal growth phase. 4. Good compliance and good oral hygiene, able to cooperate with treatment, postoperative oral care, and follow-up. 5. Understood and agreed to participate in this study, and voluntarily signed the informed consent form.
Exclusion criteria
Exclusion criteria: 1. Syndromic diseases associated with cleft lip and palate. 2. History of maxillofacial trauma and fracture, or history of tumors. 3. Previous history of orthognathic surgery or distraction osteogenesis. 4. Uncontrolled severe periodontal disease or temporomandibular disorders (TMD). 5. Uncontrolled severe systemic diseases such as diabetes mellitus. 6. Severe long-term smoking or alcohol abuse that may impair bone healing. 7. Intolerance to treatment, poor compliance, or inability to attend regular follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The distance of the anterior movement of the subspinale(A) along the sagittal axis; | — |
Secondary
| Measure | Time frame |
|---|---|
| The positional changes of the maxilla and mandible and the three-dimensional movement distances of the teeth based on three-dimensional measurement;The average forward displacement of the left upper lip, right upper lip, the area above the left corner of the mouth, the area above the right corner of the mouth, the left parasal area, and the right parasal area before and after treatment;Osteogenic volume and osteogenic density;Changes of axillary crowding degree before and after treatment;Changes in velopharyngeal anatomy and upper airway volume before and after treatment;Changes of the speech clear degree before and after treatment;Duration of the operation;Intraoperative blood loss;Incidence of postoperative complications;Relapse rate;The satisfaction of patients; | — |
Countries
China
Contacts
Public ContactCai Ming
Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
Outcome results
None listed