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在局部义齿的传统设计中,小连接体位于牙间楔状隙,而许多学者对牙周疾病的研究表明牙龈的附着丧失在邻间区最多,且磨牙邻间隙的龈组织更易丧失,尤其在老年患者中。鉴于此作者推荐将小连接体置于基牙舌面中央,更利于牙周健康。即舌侧的小连接体从大连接体垂直通过基牙龈缘横过舌面与卡环臂相连。研究表明,传统设计连接覆盖龈缘8 mm,而此设计仅覆盖4.5 mm,更符合Renner和Boucher提出的连接体必须尽可能少地覆盖龈缘的原则。
In the traditional design of partial dentures, the small connectors are located in the interdental wedges, while many scholars' studies on periodontal diseases show that the loss of gingival attachment is the largest in the interproximal region and the gingival tissues in the interproximal space are more likely to be lost, especially in the elderly In patients. In view of this author recommended a small connector in the abutment tongue surface, more conducive to periodontal health. That is, the lingual small connector is connected to the snap ring arm vertically from the large connector through the gingival margin of the abutment. Research shows that the traditional design of the connection covering the gingival margin of 8 mm, while the design only covers 4.5 mm, more in line with Renner and Boucher proposed connector body must be as little as possible to cover the principle of gingival margin.