PubMed · 6747204
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S T Higgins. 1984. Tutorial. Interference, wavefronts and diffraction.. https://pubmed.ncbi.nlm.nih.gov/6747204/
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A pilot study of holograms as substitutes for study casts during routine clinical treatment was carried out by four clinicians on 56 patients over a 6-month period. Three of the clinicians found holograms to be as informative as study casts and equally or more convenient, but one clinician considered holograms to be inferior to study casts in both these respects. In addition, replicate quantification of malocclusions by means of the Summers index showed very similar rates of random error for holograms and for study casts and no significant systematic error between the scores obtained. Currently available holograms merit further investigation as alternatives to study casts. Refinement to further improve the convenience, informativeness, and economy of the holograms is also being undertaken.
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