| IADR | International Association for Dental Research |
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| IDL | Index to Dental Literature; interface definition language; intermediate density lipoprotein; interme... |
| LDS | Licentiate in Dental Surgery; locked door seclusion |
| LDSc | Licentiate in Dental Science |
| MChD | Master of Dental Surgery |
| dental waste | Any waste product generated by a dental office, surgery, clinic, or laboratory including amalgams, saliva, and rinse water. (12 Dec 1998) |
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| impaction, dental | Teeth pressing together. For example, molar teeth (the large teeth in the back of the jaw) can be impacted, cause pain and require pain medication, antibiotics, and surgical removal. (12 Dec 1998) |
| in dental surgery | An operation in which a portion of the mucoperiosteal tissues is surgically detached from the underlying bone or impacted tooth for better access and visibility in exploring the area covered by the tissue. See: flap. (05 Mar 2000) |
| infection control, dental | Efforts to prevent and control the spread of infections within dental health facilities or those involving provision of dental care. (12 Dec 1998) |
| inferior dental arch | The teeth supported by the alveolar part of the mandible, whether the 10 deciduous teeth or the 16 permanent teeth. Synonym: arcus dentalis inferior, mandibular dentition. (05 Mar 2000) |
| inferior dental artery | <anatomy, artery> Origin, 1st part of maxillary artery; distribution, through mandibular foramen/canal to lower teeth and chin; branches, artery to mylohyoid, mental artery, dental arteries. Synonym: arteria alveolaris inferior, inferior dental artery. (05 Mar 2000) |
| inferior dental canal | The canal within the mandible that transmits the inferior alveolar nerve and vessels. Its posterior opening is the mandibular foramen. Synonym: canalis mandibulae, inferior dental canal. (05 Mar 2000) |
| inferior dental foramen | The opening into the mandibular canal on the medial surface of the ramus of the mandible giving passage to the inferior alveolar nerve, artery, and vein. Synonym: foramen mandibulae, inferior dental foramen. (05 Mar 2000) |
| inferior dental nerve | <anatomy, nerve> One of the terminal branches of the mandibular, it enters the mandibular canal to be distributed to the lower teeth, periosteum, and gingiva of the mandible; a branch, the mental nerve, passes through the mental foramen to supply the skin and mucosa of the lower lip and chin. Synonym: nervus alveolaris inferior, inferior dental nerve. (05 Mar 2000) |
| inferior dental plexus | Formed by branches of the inferior alveolar nerve interlacing before they supply the teeth; it gives off interior dental branches to the teeth and inferior gingival branches to the gums. Synonym: plexus dentalis inferior. (05 Mar 2000) |
| inferior dental rami | Inferior dental branches of inferior dental plexus. Synonym: rami dentales inferiores. (05 Mar 2000) |
| inferior gingival branches of inferior dental plexus | Branches of inferior dental plexus to the gingiva of the lower jaw. Synonym: rami gingivales inferiores plexus dentalis inferioris. (05 Mar 2000) |
| inner dental epithelium | Inner enamel epithelium, the columnar epithelial layer of enamel matrix, secreting ameloblasts, of the odontogenic organ of a developing tooth. (05 Mar 2000) |
| inorganic dental cement | A dental cement consisting usually of metallic salts or oxides which, when mixed with a specific liquid, form a plastic mass that sets. (05 Mar 2000) |
| insurance, dental | Insurance providing coverage for dental care. (12 Dec 1998) |