Implant System Design Differences — NDEB AFK MCQ
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Correct answer: C — Connection type between the implant body and the abutment — tissue-level (Straumann) vs bone-level with internal connection (Brånemark)
The Straumann system traditionally uses a tissue-level implant design (the implant collar sits at the soft tissue level, with the implant-abutment connection above the bone crest), while the Brånemark system uses a bone-level design (the implant-abutment connection is at or below the bone crest). Modern systems from both manufacturers now offer both tissue-level and bone-level options. The connection types (internal hex, external hex, conical/Morse taper) also differ between systems and influence microgap size, bacterial leakage, and abutment stability.
Reference: Misch – Contemporary Implant Dentistry, 4th ed., 2020