Kam Wing

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Earlier studies have demonstrated signs of gingivitis around conventional composite resin restorations. Newly developed resin types differ considerably in composition and surface characteristics. The purpose of this study was to compare the initiation of gingival inflammation around aged restorations of 3 types of composite resins and around enamel, during(More)
Using the C57BL/6/EL4 tumor model, studies were carried out to demonstrate the feasibility of administering Adriamycin (ADM) in therapeutic doses and schedules such that the host antitumor defenses would not be suppressed and in some cases might be stimulated by treatment. ADM treatment caused prolongation of survival and, in general, either stimulated host(More)
A new system for direct digital intraoral radiography, Sens-A-Ray, is presented. This system is based on a detector with a charge-coupled device that was designed especially for direct exposure to x-ray radiation. The system also includes interface electronics and an IBM AT-compatible personal computer with a digital I/O with frame memory, a super VGA(More)
The purpose of the present study was to compare two measures of Fe absorption, one from single meals and the other from daily diets. Ten ileostomy subjects were given the same low-fibre composite diet for all three meals each day for five consecutive days. After 3 weeks the experiment was repeated with a high-fibre diet. The morning meal constituted(More)
This study was undertaken to determine whether milk with its high calcium content adversely affects the absorption of nonheme iron from the diet as greatly as single-meal studies indicate. Nine ileostomy subjects ate a low-fiber, low-phytate diet for 8 consecutive weeks. During the first and eight weeks they drank a 250-mL soft drink with three main meals(More)
The radiopacity of 28 shades of 18 composite brands, recommended for use in Class I and Class II cavities, and one amalgam were tested in accordance with the instructions in the latest draft standards of ISO for resin-based filling materials. The composition of the inorganic fillers in the materials was analyzed by optical emission spectroscopy. Twelve(More)
Earlier studies of plaque accumulation on and gingival response around conventional composite resin fillings have produced conflicting results. No studies have been found in which the gingival reaction around newer types of resin fillings had been recorded. The aim of this study was to measure plaque retention and gingival conditions around in vivo, aged,(More)