This high-yield revision note on Dental Implants: Types, Placement Protocols & Complications covers everything examiners typically test under Prosthodontics — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Aspect | Detail |
|---|---|
| Implant design types | Root-form (most common, cylindrical/threaded), Plate-form (blade, largely historic), Subperiosteal (historic, used for severely atrophic ridges), Zygomatic (for severe maxillary bone atrophy) |
| Material | Titanium/Titanium alloy (Grade IV/V) is the gold standard; Zirconia is a metal-free alternative but has lower flexural strength |
| Loading protocols | Conventional/delayed loading (3-6 months healing), Early loading (6-12 weeks), Immediate loading (<48hrs - requires high primary stability, ISQ >65-70 by resonance frequency analysis) |
| Primary vs secondary stability | Primary = mechanical stability at placement (decreases over the first few weeks); Secondary = biological stability from osseointegration (increases over time); the two typically cross over around 3-4 weeks post-placement (the classic stability "dip") |
| Complications | Early: infection, lack of primary stability, failure to osseointegrate; Late: peri-implantitis, mechanical issues (screw loosening/fracture), IAN injury (mandibular implants), maxillary sinus perforation |
| Implant-abutment connection | External hex vs Internal connection (internal hex, Morse taper) - internal connections generally provide a better seal and less micromovement/screw loosening |
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