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Trim the crown shell of the extracted tooth subgingival to the tooth #9 as a temporary crown (Fig.3,4). The gap between the socket and the tooth shell will be filled with sticky bone and PRF and covered by periodontal or acrylic dressing.前牙临时修复通常使用现成树脂牙冠（crown form），使用自凝塑料衬里。这个病例我们准备使用病人自己，拔除的牙冠....
Xin Wei, DDS, PhD, MS 1st edition 04/29/2021, last revision 05/22/2021