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PubMed · 1118581

A drop-in treatment shell support.

R A Morrison
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Abstract

An easily made, inexpensive drop-in support for the use with treatment shells fabricated by the direct (plaster of paris bandage) method is used to immobilize the patient and reproduce the treatment position. Its quick and easy method of attachment and removal requires a minimum of patient cooperation.

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R A Morrison. 1975. A drop-in treatment shell support.. https://doi.org/10.1148/114.3.734

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Multidetector CT and dentascan software: dosimetric evaluation and technique improvement.

PURPOSE: The development of new operative techniques in oral and maxillofacial surgery within the last few years has led to an increasing demand for Dentascan examination, also in paediatric patients. It is necessary to modify acquisition parameters to reduce the absorbed dose. The aim of this study was to define a Dentascan protocol in which a reduced X-ray dose could be used. MATERIALS AND METHODS: Dosimeters were applied to the eyes, mouth, parotid glands, thyroid and back of the neck of an anthropomorphic Plexiglas phantom that underwent multidetector computed tomography (MDCT) Dentascan examinations. Both 120kV and 80 kV were used to study the mandibular and maxillary arches. RESULTS: Examinations obtained with the 80 kV protocol showed a ten-fold reduction in the absorbed dose, without affecting image quality. CONCLUSIONS: We suggest a Dentascan protocol that reduces the X-ray dose administered to the patient while ensuring the same high diagnostic accuracy.

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