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Transillumination |
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transillumination /trans·il·lu·mi·na·tion/ (trans?i-loo?mi-na´shun) the passage of strong light through a body structure, to permit inspection by an observer on the opposite side. Transillumination A technique of checking for tooth decay by shining a light behind the patient's teeth. Decayed areas show up as spots or shadows. Mentioned in: Tooth Decay transillumination (tran´siloo´minā´sh n 1. examination of an organ, cavity, or tissue (e.g., tooth or gingival tissue) by transmitted light. A valuable aid in detecting carious lesions, disclosing carious or demineralized dentin during cavity preparation, checking the finish or gingival margins of restorations, and revealing cement, debris, or calculus subgingivally. 2. a test in which the use of transmitted light may disclose a discoloration of the coronal aspect, indicating dentinal tubular hemorrhage as a result of trauma, pulpal necrosis, or fracture. 3. examination of tissues by means of a light placed so that the region under study is between the light source and the observer. transillumination the passage of strong light through a body structure, to permit inspection by an observer on the opposite side. ocular transillumination intense light placed on the sclera behind the ciliary body is transmitted to the interior of the eye, producing a tapetal reflex. Useful in identifying the presence of intraocular masses and demonstrating atrophy of the iris. |
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