A chemomechanical system for caries removal and glass ionomer cement to restore fixed partial denture abutments.

When a fixed partial denture fails due to recurrent caries under the casting of the abutments, a remake process usually requires a great deal of cooperation, multiple lengthy appointments, and financial resources. Many patients with special needs may not have the cooperation, tolerance, and resources to support such treatment. This paper describes an alternative method that utilizes a chemomechanical system for caries removal followed by a conventional restorative material to treat those patients.

Surface tension effects of heparin coating on arterial line filters.

An investigation was conducted to determine the effects that heparin-coated screen arterial line filters have on the surface tension of cardiopulmonary bypass (CPB) priming solution. Five brands of non-heparin coated arterial line filters (Bard H625, Bentley AF1040, Intersept 40mum, Pall EC3840 and Pall SP3840) and four brands of heparin-coated filters (Bard H640, Bentley AF1040C and AF1040D and Intersept 40mum) were tested in a closed-loop circuit containing two litres of Plasma-Lyte A and pumped at a rate of five litres per minute. Samples were collected at 0.