scholarly journals Corrección de una clase III esqueletal con anclaje óseo en paciente en crecimiento: Reporte de caso

2021 ◽  
Vol 29 (2) ◽  
Author(s):  
Paloma González Higuera ◽  
Laura Mónica López Pérez-Franco ◽  
Francisco Alejandro Díaz Galindo ◽  
Yareli Hernández Ávila ◽  
Marco Felipe Salas Orozco ◽  
...  
Keyword(s):  
Maxillary Protraction

Antecedentes: La clase III esqueletal, es una deformidad dentofacial donde el tercio inferior de la cara es más prominente, el tratamiento se decide según la etiología y la edad del paciente; si este se encuentra en crecimiento, la malformación puede ser tratada con un protocolo interceptivo y si es posible evitar la cirugía ortognática a futuro. Objetivo: Mejorar la clase esqueletal, descruzar la mordida u obtener mordida borde a borde, mejorar la posición del labio superior y evaluar la relación inicial-final de SNA y ANB. Reporte de caso: Paciente masculino de 13 años, sin antecedentes personales patológicos o familiares reportados; presenta clase III esqueletal, crecimiento vertical, clase molar I y canina III; fue tratado con el protocolo de mini placas BAMP (bone anchored maxillary protraction) por sus siglas en inglés, elásticos intermaxilares y un paladar con pistas planas. Resultados: La fase ortopédica duro cinco meses y se logró mordida borde a borde y clase I esqueletal. Discusión: Se obtuvieron resultados con el uso de mini implantes sin anclaje extraoral en menos tiempo a comparación de otros métodos que tienen que ser usados por 9-12 meses. Conclusión: El protocolo BAMP puede ser usado en pacientes en crecimiento sin máscara facial para corregir la clase III esqueletal.

scholarly journals Sutural deformation during bone-anchored maxillary protraction

2021 ◽  
Author(s):  
Taylor Rae Vracar ◽  
Wanda Claro ◽  
Michael Eli Vracar ◽  
Randall Stetson Jenkins ◽  
Lane Bland ◽  
...  
Keyword(s):  
Maxillary Protraction

Soft-Tissue Profile Changes during Widening and Protraction of the Maxilla in Patients with Cleft Lip and Palate Compared with Normal Growth and Development

1993 ◽  
Vol 30 (5) ◽  
pp. 454-468 ◽  
Author(s):  
Rolf S. Tindlund ◽  
Per Rygh
Keyword(s):  
Soft Tissue ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Lower Lip ◽  
Maxillary Protraction ◽  
Transverse Expansion ◽  
Short Period ◽  
Soft Tissue Profile ◽  
Lateral Cephalograms ◽  
Maxillary Deficiency

During the last 15 years, cleft lip and palate (CLP) patients with maxillary deficiency in the care of the Bergen CLP team have undergone an interceptive orthopedic treatment phase during the deciduous and mixed dentition period. The present study includes 68 patients who received maxillary transverse expansion by use of a modified quad-helix appliance and 98 cases given maxillary protraction by a facial mask. All cases were treated until an acceptable normal occlusion was attained. Lateral cephalograms were taken immediately before and after the active treatment periods. Sagittal changes of the soft-tissue profile during transverse expansion and protraction were analyzed separately for unilateral complete cleft lip and palate (UCLP) patients and bilateral complete cleft lip and palate (BCLP) patients. The soft-tissue profiles of the groups were compared to growth changes of noncleft age-matched children (NORM group). During the short period of maxillary transverse expansion (mean period, 3.5 months) no significant change of the soft-tissue profile was found, except in the protrusion of the lower lip in the BCLP group. During the period of maxillary protraction (mean periods, 12 months in the UCLP group and 15 months in the BCLP group) the soft-tissue profile improved significantly by reducing the characteristic tendency towards a concave profile in CLP patients with maxillary deficiency. Significant Increases of the sagittal maxillomandlbular lip relation (angle SS-N-SM: mean Increase, 2.5 degrees) and the Holdaway-angle (H-angle: mean increase, 3.0 degrees) were found to be similar in the UCLP and BCLP groups. However, the use of different reference lines for evaluation of treatment effects upon the soft-tissue profile resulted in conflicting findings suggesting that anteriorly situated reference lines are more suitable for the evaluation of CLP patients. Thus, the esthetic line (E.line) indicated a favorable position of the lips after treatment; the subspinale-pogonlon line (ss.pg) revealed an Improved soft-tissue profile; the soft-tissue-facial line (N.PG) showed a retruded nose and upper lip; whereas basal references such as the nasion-sella line (NSL) and the occlusal-line perpendicular (OLP) mainly showed major differences between the CLP groups and the NORM groups.

Evaluations of the tongue and hyoid bone positions and pharyngeal airway dimensions after maxillary protraction treatment

CRANIO® ◽  
2018 ◽  
Vol 37 (4) ◽  
pp. 214-222 ◽  
Author(s):  
Dong-Min Hwang ◽  
Ji-Yeon Lee ◽  
Yoon Jeong Choi ◽  
Chung-Ju Hwang
Keyword(s):  
Hyoid Bone ◽  
Maxillary Protraction ◽  
Pharyngeal Airway ◽  
Airway Dimensions

Skeletal Response to Maxillary Protraction in Patients with Cleft Lip and Palate before Age 10 Years

1994 ◽  
Vol 31 (4) ◽  
pp. 295-308 ◽  
Author(s):  
Rolf S. Tindlund
Keyword(s):  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Poor Response ◽  
Mixed Dentition ◽  
Forward Movement ◽  
Maxillary Protraction ◽  
Face Height ◽  
Lateral Cephalograms ◽  
Before And After ◽  
Maxillary Dentition

Over the last 15 years, cleft lip and palate (CLP) patients with maxillary deficiency in the care of the Bergen CLP Team have received interceptive orthopedic treatment to correct anterior and posterior crossbites during the deciduous and mixed dentition periods. The present study comprises 72 subjects of various cleft types with anterior crossbite, treated to an acceptable positive overjet by maxillary protraction using a facial mask (Delaire). Lateral cephalograms were taken immediately before and after the active treatment periods. Individuals exhibiting a favorable (fair) skeletal response to the protraction were compared with those who revealed little, (poor) skeletal response. Two cephalometric variables were chosen for the evaluation of the sagittal skeletal treatment changes: (1) the sagittal maxillomandibular change (change of angle ss-n-sm [ANB]); and (2) the forward movement of the maxilla (change of distance NSP-maxp), where maxp (maxillary point) represents the anterior contour of maxilla and NSP is the perpendicular to the naslon-sella-line (NSL) through sella. A numerical change greater than or equal to the value 1.5 (degrees or mm, respectively) was classified as fair versus poor response revealing a change less than 1.5. Fair-response (favorable response) of sagittal maxillomandibular change was found in 63 % of the cases (mean increase of angle ANB was 3.3 degrees), more often when protraction started early. The length of maxilla was increased, the skeletal maxilla was moved forward 1.8 mm, the upper dentition advanced 3.6 mm, the occlusal line was clockwise rotated, and the anterior face height was increased. Similarly, fair-response of forward movement of maxilla was found in 44% of the cases (mean increase of distance NSP-maxp was 2.4 mm), more often when protraction was started early and after long treatment duration. The maxillary prognathism increased 1.8 degrees, the angle ANB increased 3 degrees, the length of maxilla increased 1.5 mm, and the upper dentition was advanced 3.7 mm. The anterior face height increased with counterclockwise rotation of the nasal line, whereas the occlusal line was clockwise rotated. A paired fair-response of both skeletal maxillomandibular change and skeletal forward movement of maxilla was found in 35% of the cases. During protraction the mean increase of maxillary prognathism was 2.1 degrees, the maxilla moved forward 3.1 mm, the maxillary dentition advanced 4.3 mm, the maxillary length increased 1.9 mm, the ANB angle increased 3.7 degrees, and the lower anterior facial height increased 3.4 mm.

Evaluation of Facial Soft Tissue in Patients With Cleft Lip and Palate Corrected Using Maxillary Protraction Appliances

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Sayuri Uehara ◽  
Aya Honda ◽  
Yoko Kawase-Koga ◽  
Daichi Chikazu
Keyword(s):  
Soft Tissue ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Facial Soft Tissue ◽  
Maxillary Protraction
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