Augsburger R A, Wong M T
Dental Policy, Office of the Assistant Secretary of Defense for Health Affairs, Washington, D.C., USA.
J Endod. 1996 Jun;22(6):323-6. doi: 10.1016/s0099-2399(96)80269-x.
A 12-yr-old Guamanian girl presented with seven premolars displaying dens evaginatus. The pulp of one tooth was necrotic secondary to fracture of the evagination. Calcium hydroxide treatment was used to induce closure of this root apex, and subsequent routine canal obturation resulted in clinical success. Three teeth had fractured evaginations and compromised coronal pulps, but the radicular pulp tissue was vital. Coronal calcium hydroxide pulpotomy procedures were performed, and root development continued on all three teeth. In one of these teeth, endodontic treatment was completed, and in the other two the radicular pulp remained vital. Three teeth had intact evaginations and vital pulps. In an attempt to protect these evaginations from trauma, composite reinforcements were placed around the evaginations. These pulps remained vital and the roots completed normal development. Early diagnosis and treatment should be sought in cases of dens evaginatus to provide the greatest opportunity for complete root development.
一名12岁的关岛女孩有七颗前磨牙出现牙内陷。其中一颗牙齿的牙髓因牙内陷骨折而坏死。采用氢氧化钙治疗诱导该根尖闭合，随后进行常规根管充填，临床取得成功。三颗牙齿的牙内陷骨折且冠髓受损，但根髓组织活力尚存。进行了冠部氢氧化钙活髓切断术，三颗牙齿的牙根均继续发育。其中一颗牙齿完成了根管治疗，另外两颗牙齿的根髓仍有活力。三颗牙齿的牙内陷完整且牙髓有活力。为保护这些牙内陷免受创伤，在牙内陷周围放置了复合增强材料。这些牙髓仍有活力，牙根完成了正常发育。对于牙内陷病例，应尽早进行诊断和治疗，以提供牙根完全发育的最大机会。
