Short- and Long-Term Effects of Late Maxillary Advancement With the Liou-Alt-RAMEC Protocol in Unilateral Cleft Lip and Palate.
Cleft Palate Craniofac J
; 56(2): 159-167, 2019 02.
Article
en En
| MEDLINE
| ID: mdl-29702006
ABSTRACT
OBJECTIVE:
The objective of this retrospective longitudinal study was to evaluate short- and long-term results of the application of the Liou Alt-RAMEC (alternate rapid maxillary expansion and constriction) technique, a late orthopedic maxillary protraction technique, with intraoral anchorage, in patients with cleft. MATERIALS ANDMETHODS:
Twenty-six patients with unilateral cleft lip and palate (UCLP) were consecutively treated with the Alt-RAMEC technique. The average age of the patients was 11.7 years (10.3-13.2 years) before protraction and 18.3 years (17.4-21.1 years) at long-term follow-up. A sample of nontreated patients with UCLP was used as a control group. It was matched for sex, skeletal class III, and age (11.3 years). The control sample had records at the end of growth (18.7 years).RESULTS:
The sagittal advancement of A-point, after the application of the technique, was 5.7 (2.17) mm. Some mandibular dentoalveolar and positional adaptation was noted. The position of the maxilla was stable in the long term. On the other hand, the UCLP control group showed hardly any growth at the maxillary level during the long-term follow-up period.CONCLUSION:
Our results showed that the Alt-RAMEC technique, performed at the correct time, with a double-hinged expander, followed by class III spring or elastic traction, 24 hours per day, allows for satisfactory maxillary protraction, with, at this stage, apparently stable long-term results. Nevertheless, as only 50% of the patients had long-term follow-up data, we are still unable to predict the percentage of patients which will not eventually need orthognathic surgery.Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Labio Leporino
/
Fisura del Paladar
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Adolescent
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Child
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Humans
Idioma:
En
Revista:
Cleft Palate Craniofac J
Asunto de la revista:
ODONTOLOGIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Italia