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.
Parent material is the geologic material from which soil horizons form. Many soils have more than one parent material, for example loess over till. Chapter I discussed parent materials, along with the four other soil forming factors.n summary, loess is the only parent material in a few soils and is the uppermost parent material of many soils in Indiana. It is not stratified. It commonly forms silt loam A horizons, silty clay loam or heavy silt loam B horizons, and silt or silt loam C horizons.