Radio-opaque paint for medical stents

Compositions: coating or plastic – Coating or plastic compositions – Dental

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Details

252478, 106461, 106471, 1061871, 1061811, 1061921, 1061942, 1061941, 1061981, 10628723, 10628724, 10628735, G21F 110

Patent

active

058976965

ABSTRACT:
A process for preparing a water-soluble, radio-opaque paint for marking acrylic resin dental stents includes the steps of preparing a solution comprising 50 ml of ethanol, 6.4 grams of glycerol; 4.0 ml of benzaldehyde; 1.0 ml of glacial acetic acid, and 0.15 grams of hydroxy propyl cellulose. A radio-opaque powder, such as 50 grams of barium sulfate powder having a mean particle diameter of about 10 .mu.m, is then added to the solution. The solution is then mixed to obtain the paint, wherein the paint has a uniform dispersion of the radio-opaque powder. This paint may be used on dental stents to locate and guide placement of dental implants. The method may include the steps of preparing a water-soluble, radio-opaque paint for marking dental stents comprising the steps of preparing a solution described above; adding a radio-opaque powder, such as 50 grams of barium sulfate powder; and mixing the solution to obtain the paint, wherein the paint has a uniform dispersion of the radio-opaque powder. The uniform dispersion may be obtained by using ultrasound. Further, the method comprises applying the paint to a dental stent; placing the stent in contact with a patient's teeth; taking a radiographic image of the stent and the patient's teeth. The stent then is removed from the patient's teeth, and the paint is removed from the stent.

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H. Israelson et al., Barium-Coated Surgical Stents and Computer-Assisted Tomography in the Preoperative Assessment of Dental Implant Patents, The International Journal of Periodontics & Restorative Dentistry, 1992, Vol. 12, No. 1, pp. 52-61.
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