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带圆锥形设计及螺丝固位的基台被认为具有降低种植体元件松动、断裂的风险之抗微小移动能力。但这种种植基台设计也被怀疑具有接口处的“冷焊”效应而会影响其上部修复结构的可拆卸性。本研究的目的正是在于评估两种商品化种植体系即带圆锥设计、锥度为8°的ITI Straumann及带11°圆锥设计的Astra Tech种植体的“冷焊”特性。
Abutments with conical design and screw retention are considered to have anti-micromotion capabilities that reduce the risk of loosening and breaking implant components. However, this planting abutment design is also suspected to have a “cold weld” effect at the interface that affects the removability of the upper repair structure. The purpose of this study was to evaluate the “cold weld” characteristics of two commercially grown implant systems, ITI Straumann with cone design, taper of 8 ° and Astra Tech implant with 11 ° cone design.