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retainer |
Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia, Hutchinson | 0.01 sec. |
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retainer /re·tain·er/ (-tān´er) an appliance or device that keeps a tooth or partial denture in proper position.
Retainer An orthodontic appliance that is worn to stabilize teeth in a new position. Mentioned in: Malocclusion retainer Etymology: L, retinere, to hold 1 the part of a dental prosthesis that connects an abutment tooth with the suspended part of a bridge. It may be an inlay, a partial crown, or a complete crown. 2 an appliance for maintaining teeth and jaw positions gained by orthodontic procedures. Also called retaining orthodontic appliance. 3 the part of a fixed prosthesis that attaches a pontic to the abutment teeth. 4 any clasp, attachment, or device for fixing or stabilizing a dental prosthesis. retainer, n (retaining appliance), 1. The part of a dental prosthesis that unites the abutment tooth with the suspended portion of the bridge. It may be an inlay, partial crown, or complete crown. n 2. an appliance for maintaining the positions of the teeth and jaws gained by orthodontic procedures. n 3. the portion of a fixed prosthesis attaching a pontic(s) to the abutment teeth (e.g., inlay, three-quarter crown). n 4. a form of clasp, attachment, or device used for the fixation or stabilization of a prosthetic appliance. n 5. an orthodontic appliance, fixed or removable, used to maintain teeth in corrected positions during the period of functional adaptation following corrective treatment. retainer, continuous bar, n a metal bar that is attached to a major connector and contacts lingual surfaces of anterior teeth, on or incisal to the cingula; it aids in the stabilization of a distal extension removable partial denture. retainer, direct, n a clasp, attachment, or assembly applied to an abutment tooth for the purpose of maintaining a removable restoration in its planned position in relation to oral structures. retainer, extracoronal, n 1. a type of retainer in which the preparation and its cast restoration lie largely external to the body of the coronal portion of the tooth and complement the contour of the crown. The retention or resistance to displacement is developed between the inner surfaces of the casting and the external walls of the prepared tooth. The extracoronal retainer may be a partial crown or a complete crown. n 2. a direct retainer of the clasp type that engages an abutment tooth on its external surface in such a way as to afford retention and stabilization to a removable partial denture; a direct retainer of the manufactured type, the male portion of which is attached to the external surface of a cast crown on an abutment tooth (e.g., Dalbo and Crismani attachments). retainer, Hawley, n.pr a wire and acrylic resin removable appliance designed to stabilize teeth after tooth movement; serves as a basis for tooth movement by providing an anchorage for the wires and rubber dam elastics used in orthodontic tooth movement. retainer, indirect, n that part of a removable partial denture that resists movement of a free end denture base away from its tissue support through lever action opposite the fulcrum line of the direct retention. retainer, intracoronal, n 1. a type of retainer in which the prepared cavity and its cast restoration lie largely within the body of the coronal portion of the tooth and within the contour of the crown (e.g., inlay). The retention or resistance to displacement is developed between the casting and the internal walls of the prepared cavity. n 2. the type of direct retainer used in the construction of removable partial dentures; it consists of a female portion within the coronal portion of the crown of an abutment and a fitted male portion attached to the denture proper. These retainers may be fabricated in the dental office or obtained through commercial sources. retainer, matrix, n (matrix holder), a mechanical device designed to engage the ends of a matrix around the tooth. retainer, radicular, n a type of retainer that lies within the body of the tooth and is usually confined to the root portion of the tooth (e.g., dowel crown). The retention or resistance to displacement and shear is developed by extending an attached dowel into the root canal of the tooth. retainer, resin-bonded, n a prostheses fixed into an empty space created by a lost or congenitally missing tooth using bonding resin with intact or minimally restored abutment teeth in order to prevent abutment teeth from tilting or rotating. retainer a regular periodic payment made to a veterinarian in order to ensure that his/her services will be available if a particular need arises. Patient discussion about retaining fee. Q. hi my name is ray i am from england and i am on oxygen i am a retainer of carbon monxide do you guys know whoa any place working with stem cell or natural medical emial rsantolla@aol.co.uk A. i had a whole course on stem cell use in tissue engineering and from what i know this is an area that still in research and very little clinical use. the ability to create lungs from Mesenchimal Stem Cells is a far away dream right now. but here are some links to labs that research that area: Read more or ask a question about retaining feehttp://organizedwisdom.com/Stem_Cells_for_Emphysema How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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