After adjustment of the trajectory of osteotomy (Fig.5), a 3x16(2) mm 1-piece implant is placed within normal limit (10-15 Ncm, Fig.6)).  In fact bone graft is placed before (Fig.6,7 arrowhead; to repair apical buccal plate perforation) and after (Fig.6 *) implantation.  选择一段式植体(3x16(2)毫米,图六),颊侧,舌侧骨板不容易穿孔,植体方向也容易控制(图七,在没有X光眼力下)。植骨分两部,植入植体前,放置少量骨粉修复根尖颊侧炎性穿孔(图六,七:箭头),第二次骨粉放置在植体植入之后,于植体周围(图六:*),主要颊侧间隙。

Aborted Shield Last Next Xin Wei, DDS, PhD, MS 1st edition 10/28/2019, last revision 12/12/2020