Abstract: Ammonium and alkali metal zinc lactate complexes used in oral compositions such as gingival and subgingival irrigating solutions, dentifrices, mouthwashes, and the like as well as in other preparations for treating oral lesions.

Abstract: Alkali metal zinc gluconate complexes used in oral compositions such as gingival and subgingival irrigating solutions, dentifrices, mouthwashes, and the like as well as in other preparations for treating oral lesions.

Abstract: An ammonium or alkali metal zinc tartrate used in oral compositions such as mouthwashes, gingival and subgingival irrigating solutions, dentifrices, and the like as well as in other preparations for treating oral lesions.

Abstract: A glove donning and removing machine includes a pair of glove donning cylinders in which a negative pressure is created to inflate gloves mounted to the rims of the cylinders. This enables a person to insert his/her hands simultaneously in both gloves. The glove donning cylinders are selectively pivotable toward and away from the user and are also rotatable, allowing for fully adjustable orienting of the cylinders and of the gloves mounted to the cylinders. Actuating switches for controlling inflating and deflating of the gloves are located within the cylinders for allowing manipulation of the switches from within the glove inflating cylinders. Separately of the glove donning cylinders, a pair of glove removing cylinders are provided for removing a pair of gloves from a person's hands. According to one embodiment, trapezoid shaped resiliently mounted segments, disposed at the opening into the glove removing cylinders, serve to snag the cuff portion of a glove and to thus pull the gloves off a person's hands.