Surgical-orthodontic correction of open-bite malocclusion. Report of a case.
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Thirty-two subjects were interviewed about their pre- and post-treatment symptoms of craniomandibular disorders (CMD) and examined for signs of CMD at follow up 2-5 years after surgical-orthodontic treatment for maxillomandibular discrepancies. Symptoms of CMD were among the main reasons for seeking treatment in 31% of the patients. Patients with retrognathic mandibles had significantly more severe symptoms than patients with mandibular prognathism before treatment. After treatment, the severity of subjective symptoms had decreased for the patients as a whole, and significantly in the subjects with originally severe symptoms. Ten subjects out of 12 reported a decrease in the occurrence of headache. The clinical findings of CMD after surgery were usually mild. The importance of occlusal adjustment and rehabilitation as final steps after surgical-orthodontic treatment is stressed.
Tooth transposition presents a major challenge in the correction of a malocclusion. A dental transposition is an uncommon disturbance affecting 0.4% of the population, yet the treatment difficulties make this anomaly an occurrence of orthodontic interest and a source of clinical interest. This case report shows the unilateral transposition of a maxillary canine with a lateral incisor that was treated by orthodontically reversing the transposed tooth positions. An analysis of the clinical concerns in the treatment of this problem is presented.
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Anterior diastemas are common esthetic problems. With the advent of superior composite resin materials, the acid-etch/composite resin technique can be used to provide a conservative and practical approach to the closure of interdental spacing. Retention of orthodontically closed spaces can also be achieved more easily through the use of resin-bonded lingual retainers.
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Recent advances in metallurgy have led to the introduction of new techniques that allow the upper molars to be distalized. Class II molar correction is achieved in a few months without relying on patient cooperation.
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