BTK is dedicated to offer comprehensive implant solutions to meet the requirements of individual clini- cal situations, user preferences and economic constraints.
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Different designs, sizes, diameters, surfaces and abutment connections are available, while at the same time BTK strives to maintain a small number of precision-instruments thus simplifying procedures and limiting investments needed.
BTK’s external hexagon connection comprises a parallel hexagon at 0.7 mm height and a 90° shoulder to allow a flat-to- flat margin fit to the implant. Abutments are connected to the implant using a M1.8 (EN) or M2.0 (ER/EW) abutment screw.
The abutment screw plays a central role for the mechanical, long-term strength and fatigue resistance of the implant abutment connection. The requirements for such a screw are many, such as no loosening, long- term fatigue resistance, overload protection and safe pick-up and handling ability.
Due to the fact that the abutment screw is exposed to heavy dynamic loads, the precise application of tightening torque force is essential.
BTK’s internal hexagon connection comprises a parallel hexagon of 2 mm length opening with a small conical portion combined with a M1.8 abutment screw to deliver adequate pre-load with a minimum of tightening.
The internal hexagon has two functions: to transfer the torque momentum during implant placement and as an indexing system to transfer the precise 3D-position of the implant to the master cast. Internal indexing systems have some advantages over external indexing systems since they allow longer engaging surfaces while reducing the platform height of the implant. This offers somewhat more flexibility in designing the emergence profile of the final restoration.
BTK’s morse-taper hexagon connection comprises a 2.6 mm conical portion at 11° above a hexagon configuration combined with a M1.6 (KR) or M1.8 (KW) abutment screw to deliver adequate pre-load with a minimum of tightening. Implants with a tapered interface can resist larger axial and transversal forces than implants with a flat interface. The design guides the abutment into a predictable location with a precise fit with the inner portion of the implant. The precision of the conical connection with its tight seal may be beneficial in preventing inflammatory bacteria from propagating in the interface between implant and abutment and it helps to avoid micro-movements.
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