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Eur J Dent ; 8(2): 229-233, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24966775


OBJECTIVE: The purpose of this study is to compare the accuracy of the treatment simulation module of Quick Ceph Studio (QCS) program to the actual treatment results in Class II Division 1 patients. DESIGN: Retrospective study. MATERIALS AND METHODS: Twenty-six skeletal Class II patients treated with functional appliances were included. T0 and T1 lateral cephalograms were digitized using QCS. Before applying treatment simulation to the digitized cephalograms, the actual T0-T1 difference was calculated for the SNA, SNB, ANB angles, maxillary incisor inclination, and protrusion and mandibular incisor inclination and protrusion values. Next, using the treatment simulation module, the aforementioned values for the T0 cephalograms were manually entered to match the actual T1 values taking into account the T0-T1 differences. Paired sample t-test were applied to determine the difference between actual and treatment simulation measurements. RESULTS: No significant differences were found for the anteroposterior location of the landmarks. Upper lip, soft tissue A point, soft tissue pogonion, and soft tissue B point measurements showed statistically significant difference between actual and treatment simulation in the vertical plane. CONCLUSION: Quick Ceph program was reliable in terms of reflecting the sagittal changes that would probably occur with treatment and growth. However, vertical positions of the upper lip, soft tissue pogonion, soft tissue A point, and soft tissue B point were statistically different from actual results.

J Craniofac Surg ; 22(4): 1471-5, 2011 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21772154


The aim of the study was to obtain anatomic bone healing and restoration of the patient's premorbid occlusion in complex facial fractures or comminuted facial fracture. Ten patients who applied to a tertiary health care clinic with complex or comminuted fractures, and mandibular fractures combined with condylar fractures which may impair the occlusal harmony were included in the study.After the preparation of premorbid occlusal splints and direct bonded orthodontic brackets, splint-assisted reduction and internal fixation have been performed. The treatment protocol was completed with 4 to 6 weeks of intermaxillary fixation over the splint. All fracture lines showed complete bone healing, without major complications requiring further treatment. Complications included a minor degree of malocclusion in one of the panfacial fracture patients and slight avascular resorption of the condyle in one of the avulsive open comminuted mandibular fracture patients.Using orthodontic splints and direct bonded brackets to obtain and maintain delicate reduction is an efficacious method for the prevention of occlusal disharmony and aesthetic impairments in comminuted lower facial unit and complicated facial fracture patients.

Huesos Faciales/lesiones , Fracturas Conminutas/cirugía , Ferulas Oclusales , Soportes Ortodóncicos , Fracturas Craneales/cirugía , Adolescente , Adulto , Anciano , Placas Óseas , Resorción Ósea/etiología , Tornillos Óseos , Femenino , Estudios de Seguimiento , Fijación Interna de Fracturas/instrumentación , Curación de Fractura/fisiología , Fracturas Abiertas/cirugía , Humanos , Técnicas de Fijación de Maxilares/instrumentación , Masculino , Maloclusión/etiología , Cóndilo Mandibular/lesiones , Cóndilo Mandibular/patología , Cóndilo Mandibular/cirugía , Enfermedades Mandibulares/etiología , Fracturas Mandibulares/cirugía , Persona de Mediana Edad , Complicaciones Posoperatorias , Estudios Prospectivos , Adulto Joven
J Oral Maxillofac Surg ; 68(2): 254-9, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20116692


PURPOSE: To evaluate skeletal and dental stability in adult cleft lip and palate patients treated with a rigid external distraction system at the end of distraction and during the postdistraction period. PATIENTS AND METHODS: Lateral cephalograms of 7 patients were obtained before distraction, at the end of distraction, and during the postdistraction period. The mean age before distraction was 21.56 +/- 4.73 years. The mean follow-up was 37.3 +/- 12.4 months. RESULTS: The assessment of findings showed that skeletal maxillary sagittal movement was achieved in a superoanterior direction. The maxillary depth angle and effective maxillary length increased significantly (2 degrees and 9 mm, respectively) after distraction, whereas the palatal plane angle increased by 8 degrees , resulting in an anterior movement of the maxilla with a counterclockwise rotation. The lower facial height showed no significant changes after distraction. The sagittal movement of the upper incisors and the angulation of the upper first molars increased significantly (4.5 mm and 5.5 degrees , respectively). During the postdistraction period, the maxilla showed a slight relapse (22%). The effective maxillary length decreased by 2 mm. The palatal plane angle almost returned to its original position, showing 7 degrees of clockwise rotation. The lower facial height remained stable. The upper incisors moved anteriorly and the upper first molars showed a significant mesioangular change during follow-up. CONCLUSIONS: After distraction, significant maxillary advancement was achieved with a counterclockwise rotation. The upper incisors moved labially, and the upper first molars angulated mesially. After 3 years, a 22% relapse rate was seen in the maxilla. The counterclockwise rotation of the maxilla was returned to its original position. The upper incisors moved more anteriorly.

Fisura del Paladar/cirugía , Maloclusión de Angle Clase III/cirugía , Maxilar/cirugía , Osteogénesis por Distracción , Adolescente , Adulto , Cefalometría , Labio Leporino/cirugía , Fijadores Externos , Femenino , Humanos , Masculino , Osteogénesis por Distracción/instrumentación , Osteotomía Le Fort/instrumentación , Osteotomía Le Fort/métodos , Estudios Prospectivos , Recurrencia , Técnicas de Movimiento Dental , Adulto Joven
J Can Dent Assoc ; 74(8): 723-6, 2008 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-18845063


Intrusive luxation of primary teeth carries a high risk of damage to underlying permanent tooth germs. Ectopic eruption of permanent incisors is an unusual outcome of traumatic injury to their predecessors. In this case report, we describe the multidisciplinary management of the consequences of a primary tooth intrusion that led to severe ectopic eruption of the permanent left central incisor in a horizontal position at the level of the labial sulcus.

Extrusión Ortodóncica/instrumentación , Avulsión de Diente/complicaciones , Erupción Ectópica de Dientes/etiología , Erupción Ectópica de Dientes/terapia , Diente Primario/lesiones , Niño , Humanos , Incisivo/fisiopatología , Masculino , Diseño de Aparato Ortodóncico , Germen Dentario/lesiones