Cephalometric Radiograph4/26/2021
If the suture is not visible, this point is located at the deepest concavity of the two bones.
Cephalometric Radiograph Download As PDFFrom: Orthodontic Treatment of the Class II Noncompliant Patient, 2006 Related terms: Obstructive Sleep Apnea Malocclusion Archwire Cephalometry Salicylic Acid Occlusion Mandible Maxilla Incisor View all Topics Download as PDF Set alert About this page The Ritto Appliance an easy way to treat Class II malocclusions Antnio Korrodi Ritto, in Orthodontic Treatment of the Class II Noncompliant Patient, 2006 Patient 1 This 8.5-year-old female patient presented with a severe Class II division 1 malocclusion in early mixed dentition, as a consequence of sucking habits and lingual dysfunction ( Figs 6.426.46 ).She could not close her lips without an effort of muscular chin contraction, due to a big overjet (13 mm).Cephalometric Radiograph The cephalometric analysis showed a severe skeletal mandibular deficiency and a convex profile (ANPg 8, SNPg 72) ( Fig.In relation to the anterior cranial base, the upper jaw was in correct position, while the mandible was retrognathic, determining a distal sagittal relation, as shown by the ANPg variable ( Table 6.1 ). The overjet was augmented (13 mm) and the overbite was 4 mm. Treatment Plan Due to the large overjet and convex profile, which was improved when the mandible was advanced, treatment with a fixed functional appliance was planned. A further retreatment at the age of 12 in permanent dentition will probably be necessary. Treatment was planned first with a mini stimulator for 2 months followed by the Ritto Appliance. The appliance would be fixed to the lower archwire (only with incisors and lower molars bonded), and on the upper bands. After reaching a Class I intercuspation, a multibracket appliance would be placed to level and align the upper incisors. At the end of the treatment an activator would be placed as a retainer for use at night, for 1 year. Treatment A mini stimulator was placed for 2 months to stimulate muscles before the fixed therapy. After this first step, the Ritto Appliance was fitted as well as a transpalatal arch, and the mandible was positioned in Class I relationship ( Figs 6.486.50 ). Three months later a multibracket appliance was bonded on the upper arch. The Ritto Appliance was maintained for 7 months, followed for a period of 3 months with Class II elastics (at night) to stabilize the Class I relationship. The appliance was removed (12 months of treatment) and an activator was placed for use at night. Posttreatment Results At the end of the treatment the profile was improved as well as the occlusion ( Figs 6.516.55 ). The cephalometric radiograph ( Fig. Cephalometric Radiograph Full Chapter URLTable 6.1 ). View chapter Purchase book Read full chapter URL: Aesthetic Orthognathic Surgery Michael Miloro MD, DMD, FACS, Michael R. ![]() The operative plan should be clinically driven with the aid of three-dimensional treatment planning and virtual surgical planning (VSP) considering functional and aesthetic concerns ( Fig. Surgical therapy is aimed at the correction of the specific individual patient deformity, with correction of the malocclusion, functional deficiency, and unaesthetic appearance. Ravindra Nanda, in Esthetics and Biomechanics in Orthodontics (Second Edition), 2015 Maxilla The second component of the cephalometric analysis is the maxilla. Initially, a general idea of its size is obtained by measuring the posterior border to the anterior border. This measurement is specifically defined as the distance from the anterior nasal spine to the posterior nasal spine (ANSPNS). The distance from A point, which is related to a vertical reference line passing through N, provides good information relative to the position of the maxilla. It is important to remember that A point is affected by dentoalveolar movement. Another measurement used to assess the anteroposterior position of the maxilla is the perpendicular distance from PNS to a vertical line passing through pterygomaxillary fissure point (PTM) ( Fig. To assess the vertical position of the maxilla, the distance from the ANS to the N is measured. Although each analysis is completed in two dimensions, when the lateral and PA analyses for the same patient are considered together, a three-dimensional simulation emerges to contribute to the overall diagnosis and treatment plan. The following reference points are used in this chapter (see Fig. Sella turcica (S, or sella). This is the ovoid area of the spheroid bone that contains the pituitary gland. Nasion (N). The external junction of the nasofrontal suture in the median plane.
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