Category: D
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Defect
An imperfection, failure, or absence. Any non-conformance of a unit of product from specified requirements of a single quality characteristic. Defects are classed as “minor”, “major”, “severe”, or “critical” depending upon the severity and undesirability of the defect. An unsatisfactory or imperfect feature of something. A lack of something which is necessary. Abnormality, either the…
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Deep sedation
A drug‐induced depression of consciousness during which patients cannot be easily aroused but respond purposefully following repeated or painful stimulation. The ability to independently maintain ventilatory function may be impaired. A depressed level of consciousness produced by medications that suppress anxiety, awareness, memory, or pain, in which a patient may not be able to protect…
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Deepithelialize
To remove the epithelial layer of soft tissue, exposing the underlying connective tissue.
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Decreased occlusal vertical dimension
A reduction in the distance measured between two anatomic points when the teeth are in occlusal contact.
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Decortication
Intraoperative preparation of the recipient bone bed by making numerous small perforations into the cortex to induce bleeding from the marrow cavity. This technique is routinely used in combination with onlay block grafts or guided bone regeneration (GBR) procedures. The surgical removal of the cortex of an organ. The removal of the outside layer (cortex)…
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Decoronation
A conservative method to treat an ankylosed tooth for preservation of width and height of the alveolar process.
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Decay
Demineralization of tooth structure leading to decomposition and destruction of tooth structure and then cavitation. The process by which tissues become rotten, caused by the action of microorganisms and oxygen. Damage caused to tissue or a tooth by the action of microorganisms, especially bacteria. Gradual breakdown of dead tissue or other dead organic material, due…
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Decalcification
The process of removing the mineral content from a hard tissue, such as bone or tooth, with the aid of acids. The absorption of calcium from a tissue or structure in which it is normally present or is an integral component. The loss of calcium salts from teeth and bones. Loss of calcium from bone…
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Debris
An accumulation of foreign material on the teeth and adjacent structures. The remains of broken-down or damaged cells or tissue.
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Debridement
Removal of inflamed, devitalized, or contaminated tissue or foreign material from or adjacent to a lesion. Is the process of removing nonliving tissue from pressure ulcers, burns, and other wounds. Removal of dead or damaged tissue or other matter, especially from a wound. The surgical cleansing of a wound by removal of dead, injured, or…