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Kennedy牙列缺损的第四类中,如患者为前牙深覆(牙合),则义齿受力时人造牙易折断.所以修复设计中常采用带有金属腭侧铸板的塑胶义齿或金属支架义齿.义齿中金属与塑胶牙可通过金属网、“T”型固位体、金属舌侧背板等固位装置结合.但是因牙冠的唇舌径较塑胶牙薄,固位装置常常出现“透青”问题,从而影响义齿的美观.采用镀金工艺可较好地解决这一问题,使义齿在功能和美观方面均达到满意的效果.固位装置的制作
In the fourth category of Kennedy's dentition defect, if the patient is a deep overbite of the anterior teeth, the artificial tooth will be easily broken when the denture is subjected to force, so plastic dentures or metal stents with metal palatal castings are often used in the repair design Dentures. Dentures in the metal and plastic teeth can be metal mesh, “T” type retainer, metal lingual back plate and other retention devices combined.But due to the crown of the tongue diameter than the plastic thin teeth, retention devices often appear “ Through the blue ”problem, thus affecting the aesthetic appearance of dentures.Geld plating process can be a better solution to this problem, the denture in the function and appearance are to achieve satisfactory results.