definitions Flashcards
ABFRACTION
ABFRACTION: The hypothetical process leading to the loss of cervical tooth structure due to a combination of abrasion, erosion, and/or occlusal forces; data supporting this term as a discrete clinical entity are equivocal. See also ABRASION and EROSION.
ABRASION
ABRASION: The wearing away of tooth structure or restorative material through an abnormal mechanical process. Examples include gingival and dental abrasions due to incorrect brushing. #Diagnostic Terminology
ABSCESS
ABSCESS: Localized collection of purulent exudate (pus) in a cavity formed by the disintegration of tissues due to an infectious process or foreign material.
ABSCESS: CHRONIC ABSCESS
ABSCESS: CHRONIC ABSCESS: 1. Abscess of comparatively slow development with little evidence of inflammation. There may be an intermittent discharge of purulent matter. 2. Long-standing collection of purulent exudate. It may follow an acute abscess. See also RESIDUAL …
ABSCESS: GINGIVAL ABSCESS
ABSCESS: GINGIVAL ABSCESS: A localized purulent infection that involves the marginal gingiva or interdental papilla. #OralPathologyandOralMedicine
ABSCESS: PERICORONAL ABSCESS
ABSCESS: PERICORONAL ABSCESS: A localized purulent infection within the tissue surrounding the crown of a partially erupted tooth. #OralPathologyandOralMedicine
ABSCESS: RESIDUAL ABSCESS
ABSCESS: RESIDUAL ABSCESS: Persistent abscess formed by the residues of a previous infection or foreign material.
ABSORPTION
ABSORPTION: 1. Passage of a substance into the interior of another substance. 2. Passage of fluids or substances through tissues. 3. Attenuation of radiation energy by the substance through which it passes. #HistologyandCellularBiology
ABUTMENT
ABUTMENT: Tooth, root, or implant used to support and/or retain a fixed or removable prosthesis. #Prosthodontics
ACANTHOLYSIS
ACANTHOLYSIS: Dissolution of the intercellular attachments within the prickle cell layer (stratum spinosum) of stratified squamous epithelium. Classically seen in pemphigus vulgaris during vesicle and bulla formation. #HistologyandCellularBiology
ACANTHOSIS
ACANTHOSIS: Hyperplasia of the prickle cell layer (stratum spinosum) of stratified squamous epithelium, resulting in thickened rete ridges or widening of this layer. #HistologyandCellularBiology
ACCRETION
ACCRETION: Accumulation on the teeth of foreign materials such as plaque, materia alba, and calculus. #Miscellaneous
ACELLULAR DERMAL MATRIX
ACELLULAR DERMAL MATRIX: An allogenic collagen material that has been treated to remove all cells to provide a matrix to support tissue regeneration and re-vascularization ultimately being transformed into host tissue. Indicated in mucogingival/regenerative procedures. …
ACHE
ACHE: Any dull, continuous or throbing pain. It is a subjective sensation, thought to be the psychological manifestation of c-fiber (slow, nonmyelinated) nociceptive impulses with origin outside the central nervous system. #Miscellaneous
ADHESION
ADHESION: The property of remaining in close proximity; the molecular attraction existing between the surfaces of contacting bodies. #HistologyandCellularBiology
ADJUNCTIVE TREATMENT
ADJUNCTIVE TREATMENT: Supplementary and additional therapeutic procedures. In periodontics, it generally refers to procedures other than scaling and root planing and surgical therapy, such as chemotherapy, occlusal therapy. #Miscellaneous
ADSORPTION
ADSORPTION: The attachment of a substance to the surface of another. #HistologyandCellularBiology
ADSORPTION
ADSORPTION: The attachment of a substance to the surface of another. #HistologyandCellularBiology
ALLELE
ALLELE: One of two or more different genes that may occupy the same locus on a specific chromosome. #EmbryologyandAnatomy
ALVEOLAR CREST
ALVEOLAR CREST: The most coronal portion of the alveolar process. #EmbryologyandAnatomy
ALVEOLUS
ALVEOLUS: The socket in the bone into which a tooth is attached by means of the periodontal ligament. #EmbryologyandAnatomy
ANESTHESIA: BLOCK ANESTHESIA
ANESTHESIA: BLOCK ANESTHESIA: Local anesthesia of a nerve trunk. #Pharmacology
ANESTHESIA: BLOCK ANESTHESIA
ANESTHESIA: BLOCK ANESTHESIA: Local anesthesia of a nerve trunk. #Pharmacology
ANESTHESIA: INFILTRATION ANESTHESIA
ANESTHESIA: INFILTRATION ANESTHESIA: Local anesthesia of terminal nerves. #Pharmacology