Kwon H J, el Deeb M, Morstad T, Waite D
J Oral Maxillofac Surg. 1986 Jul;44(7):503-8. doi: 10.1016/s0278-2391(86)80089-1.
The efficacy of solid cones of hydroxylapatite ceramic implanted in fresh extraction sockets for the preservation of alveolar bone was evaluated. Ten experimental subjects (70 implants) and eight control subjects (63 extractions) were treated. After extraction, hydroxylapatite ceramic cones were inserted into the sockets at least 1 mm below the alveolar crest in the experimental group. Alveolar ridge resorption was measured on lateral cephalometric radiographs, and statistical analysis was performed. The follow-up periods ranged from 12 to 24 months (mean, 20.6 months). Thirty-seven of the 70 hydroxylapatite ceramic cone implants (53%) became exposed, and 19 cones (27%) had to be removed. It was concluded that hydroxylapatite ceramic cone implants placed in fresh extraction sockets do not significantly preserve alveolar bone.
评估了植入新鲜拔牙窝的羟基磷灰石陶瓷实心锥用于保存牙槽骨的疗效。对10名实验对象（70颗植入物）和8名对照对象（63颗拔牙）进行了治疗。拔牙后，在实验组将羟基磷灰石陶瓷锥插入牙槽嵴下方至少1毫米的牙槽窝内。在头颅侧位X线片上测量牙槽嵴吸收情况，并进行统计分析。随访期为12至24个月（平均20.6个月）。70颗羟基磷灰石陶瓷锥植入物中有37颗（53%）发生暴露，19颗锥（27%）不得不被取出。得出的结论是，置于新鲜拔牙窝的羟基磷灰石陶瓷锥植入物并不能显著保存牙槽骨。
