How does bone quality affect a partial implant-supported bridge?

Type D1 bone (very dense) allows greater primary stability. Type IV bone (spongy) often requires wider or self-tapping implants. Bone substitute material (e.g. Bio-Oss) increases the success rate in softer areas. Piezosurgery minimises bone loss during implant placement. Where bone is insufficient, a sinus lift or bone graft is carried out first. Bone density is measured using a CBCT scan for precise planning. Bone quality determines the osseointegration time (2-6 months). Patients with osteoporosis have a 20% higher risk of failure. Medication (e.g. bisphosphonates) may be a contraindication. Improving bone quality through diet or supplements is sometimes recommended.