Double-occlusal pad appliance

Abstract

The invention provides a double-occlusal pad appliance. The double-occlusal pad appliance is characterized in that the double-occlusal pad appliance comprises bilateral upper jaw metal crowns sleevingposterior teeth at two sides of the upper jaw, bilateral lower jaw metal crowns sleeving posterior teeth at two sides of the lower jaw, face bows connected with the bilateral upper jaw metal crowns,and upper jaw buccal tubes arranged at the outer sides of the upper jaw metal crowns and used as connecting sites for the face bows. The double-occlusal pad appliance has the following advantages: thecombined utilization of high head caps and the face bows inhibits the vertical maxillary excess of upper jaw posterior teeth, reduces the vertical height by 1 / 3, inhibits the posterior downward rotation of the lower jaw and improves the nose-lip-mentum relation; and auxiliary arch lowering of mandicular anterior teeth is realized through double buccal tubes at the buccal sides of the first molartooth metal crowns, and a sharp spee curve is flattened in the functional orthodontic process, so the building of posterior teeth after dismounting of the appliance is benefited, and the elongation of the posterior teeth, caused by opening and closing, is prevented.

Description

technical field [0001] The invention relates to a double pad aligner, which belongs to the field of dental instruments. Background technique [0002] Malocclusion refers to the dentocraniofacial deformity caused by congenital genetic factors or acquired environmental factors during the growth and development of children. Class II skeletal malocclusion is the most common type of skeletal malocclusion in my country. In recent years, with the aggravation of air pollution, the proportion of children suffering from airway infection and nasopharyngeal airway obstructive disease has been increasing. Children are in an important stage of dental and maxillofacial development and the formation of breathing patterns. Long-term airway obstruction, mouth breathing It will cause narrow upper dental arch, underdevelopment of the middle part of the face and nasal cavity, and at the same time, the mandible will rotate backward and downward, the face height will increase, and lip closure wil...

AI Technical Summary

Problems solved by technology

2. Patients with high-angle deep overbite need to depress the anterior teeth as much as possible to avoid facial deterioration caused by the elongation of the posterior teeth when opening the occlusion. However, the posterior teeth open and close after the front of the traditional appliance guides the mandible. During occlusion, the posterior teeth will elongate to varying degrees, which will aggravate the high-angle skeletal type. At present, there is no functional appliance suitable for high-angle skeletal class II patients.

3. The corrected age for skeletal type II mandibular retrusion is 10 to 12 years old. At this stage, all deciduous teeth have been replaced, which can provide good retention for removable appliances. However, children with OSAHS mandibular retrusion should be treated as soon as possible. At the beginning of the treatment, many children are in the replacement dentition period, and the shape of the deciduous molars is not conducive to the retention of removable appliances. In addition, the incisors are often in the replacement stage, and the traditional mandibular leading appliance cannot be used.

Images