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.
Rating Newest Oldest. Best Answer: Much of the earth's surface is covered with a blanket of disintegrated and decomposed rock and mineral fragments produced by weathering.When this is mixed with water,air and decayed plant and animal remains(humus),soil forms.The mineral content of the bedrock determines the nutrient richness of the soil produced.