Increased spatial resolution for light images of tissues--especially for teeth

Abund Ottokar Wist; Steven Lynn Herr; Z. H. Meiksin; Panos P. Fatouros

doi:10.1117/12.154964

17 September 1993 Increased spatial resolution for light images of tissues--especially for teeth

Abund Ottokar Wist, Steven Lynn Herr, Z. H. Meiksin, Panos P. Fatouros

Proceedings Volume 1894, Clinical Applications of Modern Imaging Technology; (1993) https://doi.org/10.1117/12.154964
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

A new high resolution transillumination technique has been developed to detect small lesions in teeth and in tissues. It uses collimated, narrow light beams synchronized with a highly sensitive receiver to scan the sample. Extracted teeth and tissues have been examined with this technique. The teeth included a variety of conditions, some with caries, some previously restored, and others with metal pins inserted into them. The results show that a small carious lesion as small as 1 mm² can be detected from either side of the tooth. Cysts and cancerous lesions in tissues were also detected. The new light imaging technique can find carious lesions better than dental x rays, however, the solution of mental pins inside a tooth is less than that of x rays. The technique is totally harmless to teeth and tissues and can be used as often as necessary even during any clinical procedure. The investigation shows that the resolution for carious lesions could be increased further to about 0.1 mm by incorporating presently available new semiconductor devices and that such a device could be designed for clinical oral use.

Citation Download Citation

Abund Ottokar Wist, Steven Lynn Herr, Z. H. Meiksin, and Panos P. Fatouros "Increased spatial resolution for light images of tissues--especially for teeth", Proc. SPIE 1894, Clinical Applications of Modern Imaging Technology, (17 September 1993); https://doi.org/10.1117/12.154964

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