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切牙区错(牙合)畸形的复发是正畸治疗中最令人失望的问题之一。作者设计了一种新的放置于切牙舌侧的固定式保持器。它的结构非常简单,把大头针横焊在可粘接的托槽基板上。大头针突出于基板,形成金属臂,如果需要,金属臂可延伸至近远中牙齿。焊接后,大头针形成的金属臂与托槽基板联为一个整体。在粘接之前可调整金属臂使之与邻牙舌面贴合,然后使用粘接托槽的粘接剂把此保持装置粘接于牙齿的舌面。把它
Incisional malocclusion Malocclusion recurrence is one of the most disappointing problems in orthodontic treatment. The authors devised a new fixed holder placed on the lingual side of the incisor. Its structure is very simple, the pin across the solderable brackets substrate. The pins protrude from the base plate to form metal arms that extend to the mesial teeth, if desired. After soldering, the metal arm formed by the pin is united with the bracket base plate. The metal arm can be adjusted to fit the adjacent lingual surface prior to bonding, and then the holding device can be bonded to the lingual surface of the teeth using an adhesive attached to the bracket. Put it