Mindblown: a blog about philosophy.
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Alveolar
Pertaining to an alveolus. The portion of jaw bones that support teeth or that supported teeth at one time. Related to the alveolar process, the maxillary or mandibular ridge of bone that supports the roots of teeth.
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Aluminum oxide
A metallic oxide constituent of dental porcelain that increases hardness and viscosity. A high‐strength ceramic crystal dispersed throughout a glassy phase to increase its strength, as in aluminous dental porcelain used to fabricate aluminous porcelain crowns. A finely ground ceramic particle (frequently 50 μm) often used in conjunction with air‐borne particle abrasion of metal castings…
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Aluminous porcelain
A ceramic material with >35% aluminum oxide (by volume) glass matrix phase.
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Altered cast
A technique in which a removable partial denture frame is related to the existing dentition by sectioning the cast on which the frame was constructed. A new overimpression is made and pieced together with the existing cast.
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All‐polymer prosthesis
A nonmetallic or nonceramic removable or fixed dental prosthesis composed of a glass fiber‐reinforced composite framework with a particulate composite resin covering or overlay.
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Alloying element
Metallic or nonmetallic elements added to or retained by a pure metal for the purpose of giving that metal special properties.
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Alloy
A mixture of two or more metals or metalloids that are mutually soluble in the molten state; distinguished as binary, ternary, quaternary, etc., depending on the number of metals within the mixture. Alloying elements are added to alter the hardness, strength, and toughness of a metallic element, thus obtaining properties not found in a pure…
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Alloplastic material
Any nonbiologic material suitable for implantation as an alloplast.
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Alloplast
An inert foreign body used for implantation within tissue. A material originating from a nonliving source that surgically replaces missing tissue or augments that which remains.
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Allograft
Allogenic graft. Graft tissue from genetically dissimilar members of the same species. Four types exist: frozen, freezedried bone allograft (FDBA), demineralized freeze‐dried bone allograft (DFDBA), and solvent‐dehydrated mineralized allograft. A graft of tissue between genetically different individuals of the same species. Tissue segment from one member to be applied as a graft to another member…
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