A full set (upper and lower) of implants and dentures can cost $7,000-$90,000 or more. CostHelper readers report paying $3,800-$27,858 for implants with a single denture plate, at an average cost of $14,226; and $6,549-$80,000 for a full set of implant-supported dentures (upper and lower), for an average expense of $34,119.
overburden-the surface soil that must be moved away to get at coal seams and mineral deposits. land, soil, ground-material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use); the land had never been plowed; good agricultural soil.
Soils can be up to several million years old. Many of the soils found in New Zealand date to the end of the last glacial period, around 15,000 years ago, although many volcanic-ash soils have taken 25,000 years or more to form.oils can be up to several million years old. Many of the soils found in New Zealand date to the end of the last glacial period, around 15,000 years ago, although many volcanic-ash soils have taken 25,000 years or more to form.