Sanavi F, Weisgold A S, Rose L F
School of Dental Medicine, University of Pennsylvania, Philadelphia, USA.
J Esthet Dent. 1998;10(3):157-63. doi: 10.1111/j.1708-8240.1998.tb00351.x.
Although average measurements of the biologic zone do not necessarily reflect any one clinical situation, they do establish a basis upon which clinical decisions can be made. Clinical impressions, human autopsy material, and animal studies support the concept of a biologic width. Impingement on the attachment in a susceptible host has shown adverse reactions, including gingival inflammation and alveolar bone loss. The concept is clinically important in determining the extent of osseous surgery necessary in the exposure of sound tooth structure. If the implant-abutment interface is considered to be similar to a subgingival crown margin, its importance in relation to peri-implant inflammatory disease is readily apparent. In the presence of inflammation, it is likely that epithelial migration would occur to a level apical to that source. Clinical observations indicate that, once the biologic attachment is invaded around the implant, the gingival reactions are similar to those found around natural teeth, whether the tissue is of the thick flat or thin scalloped type.
虽然生物宽度的平均测量值不一定反映任何一种临床情况，但它们确实为临床决策奠定了基础。临床印象、人体尸检材料和动物研究都支持生物宽度的概念。在易感宿主中，对附着结构的侵犯已显示出不良反应，包括牙龈炎症和牙槽骨丧失。这一概念在确定暴露健康牙体结构所需的骨手术范围时具有重要的临床意义。如果种植体-基台界面被认为类似于龈下冠边缘，那么它在种植体周围炎症性疾病方面的重要性就很明显了。在存在炎症的情况下，上皮迁移很可能会发生到炎症源根尖方向的某个水平。临床观察表明，一旦种植体周围的生物附着结构受到侵犯，牙龈反应与天然牙周围的反应相似，无论组织是厚而扁平型还是薄而扇贝型。
