Clinical outcome of non-surgical orthopedic treatment using fixed for skeletal class III malocclusion following surgical repair of congenital cleft lip and palate
- VernacularTitle:Уруул тагнайн төрөлхийн сэтэрхийтэй өвчтөний мэс заслын дараах ясны гаралтай III хэв шинжтэй зуултын гажгийг гажиг заслын авагддаггүй зэмсгээр эмчилсэн эмнэлзүйн тохиолдлын үр дүн
- Author:
Khongorzul M
1
;
Burenjargal O
1
;
Gannaran N
2
,
3
,
4
;
Bolormaa S
2
,
3
,
4
Author Information
1. Department of Orthodontics, School of Dentistry, MNUMS
2. "
3. Gloria Dios"
4. Dental Clinic
- Publication Type:Case Reports
- Keywords:
Self-ligating bracket system (SLBS), Crossbite, Crowding, TMA archwire
- From:
Mongolian Journal of Health Sciences
2025;87(3):97-102
- CountryMongolia
- Language:Mongolian
-
Abstract:
Background:Cleft lip and palate (CLP) is a congenital anomaly that accounts
for approximately 65% of all craniofacial malformations. In Mongolia, the prevalence
of CLP is estimated at 0.93 to 1 per 1,000 live births, which is comparable
to the global average but slightly higher than the average reported among
Asian countries. The incidence is observed to be twice as common in males
compared to females.
Diagnosis:The patient is a 15-year-old male with a
history of congenital unilateral cleft lip and palate. He underwent primary surgical
repair of the cleft at the age of 9. As of May 2022, clinical examination revealed
maxillary hypoplasia, anterior crowding, and a combination of bilateral
posterior and anterior crossbite. Cephalometric analysis demonstrated a skeletal
Class III malocclusion with midfacial deficiency.
Treatment:Orthodontic
treatment was initiated in October 2022 using a non-removable, self-ligating
bracket system (MBT 0.022” slot, stainless steel). In the first month, CuNiTi
0.014 archwires were placed, and cross elastics were applied from the maxillary
to mandibular canines on the left side for two months. On December 10,
2022, CuNiTi 0.014×0.025 archwires were placed in both arches, accompanied
by coil springs to open space. Subsequent phases involved transitioning
to stainless steel (SS) and titanium-molybdenum alloy (TMA) archwires for
alignment and leveling.
Treatment Outcome:At the end of treatment, a Class
I molar and canine relationship was achieved. The axial inclinations of the
upper and lower incisors reached normative values based on lateral cephalometric
analysis. The maxillary arch form was expanded and improved to a
more ideal rounded contour. Dental crowding was resolved without extraction,
and both transverse and sagittal occlusal relationships were significantly improved.
Conclusion:This clinical case demonstrates that fixed orthodontic
treatment in a patient with unilateral cleft lip and palate can effectively correct
dental crowding, normalize occlusal relationships, and significantly improve
facial esthetics, phonetics, and overall quality of life. Orthodontic intervention
played a vital role in restoring function and supporting psychosocial and physical
development.
- Full text:202505241958185121797-102.pdf
