💡 Branemark = first successful. Titanium Grade IV = most used. SLA surface = sandblasted + acid etched = best osseointegration. Platform switching = reduces crestal bone loss. Morse taper = cold welding connection.

💡 Autograft = gold standard (osteogenic + osteoinductive + osteoconductive). Allograft = same species. Xenograft = different species (Bio-Oss). Alloplast = synthetic. GBR = Guided Bone Regeneration with membrane.

💡 Immediate loading = within 48hrs. Early loading = 48hrs-3months. Conventional = 3-6 months. All-on-4 = 4 implants for full arch (2 tilted posteriors). Cement vs screw retained: screw = retrievable, cement = passive fit.

💡 Early failure = before loading (infection, overheating). Late failure = after loading (peri-implantitis). Peri-mucositis = soft tissue only (reversible). Peri-implantitis = bone loss (irreversible). Success: <1mm bone loss yr1.

💡 Lateral window = Caldwell-Luc approach (for <5mm bone). Crestal/Osteotome = conservative (for 6-9mm bone). Schneiderian membrane = must not perforate. Ridge split = narrow ridge augmentation.