Technical Bulletin

There is a large number of different dental implant systems and associated prosthetics in use today. These can be categorized or grouped according to various properties and features. Distinguishing features are, for example, whether the systems are one-piece or two-piece systems, the geometry of the implant body, the design of the implant shoulder, and, in particular, the type of implant-abutment connection for two-piece systems.

The concept of two-piece implant systems offers many advantages, especially in terms of flexibility in restorative treatment. This makes it possible to place implants in an angled position and later prosthetically compensate the axis - among other things, in order to avoid bone augmentation. An inherent feature of two-part systems is the formation of a microgap between the implant and the abutment (LINKEVIČIUS, 2019, ZIPPRICH et al., 2016). The size of the microgap can vary, depending on the type

of connection geometry. From negligibly small, as in the case of deep-tapered connections, to clearly measurable microgaps in butt connections (ZIPPRICH et al., 2018). Deeply engaging cone connections are considered to be particularly tight and mechanically stable (ZIPPRICH et al., 2016).