Wiggins C E, Caputo A A, Jedrychowski J R
J Am Dent Assoc. 1978 May;96(5):823-6. doi: 10.14219/jada.archive.1978.0181.
Tensile retentive strengths for six polycarbonate crown cementation systems were examined with use of extracted human teeth prepared with and without retentive grooves. From the results of this study, use of unfilled intermediary resins followed by polycarboxylate or zinc phosphate cements is recommended. Retentive grooves did not contribute to overall retention.
使用制备有和没有固位沟的拔除人类牙齿，对六种聚碳酸酯全冠黏固系统的拉伸固位强度进行了检查。根据本研究结果，建议先使用未填充的中间树脂，然后使用聚羧酸锌或磷酸锌水门汀。固位沟对整体固位没有作用。
