Other surgical treatments include the injection of dermal fillers, silicone gel, or PMMA. Nicotine pouches often contains food grade fillers, water, salt, flavorings and nicotine. Other ingredients such as grains or breadcrumbs may be included as fillers or extenders. Fillers in eye shadows are primarily talc. Lime plaster is a mixture of calcium hydroxide and sand (or other inert fillers). Thermal grease often consists of a silicone-grease base, along with added thermally conductive fillers. In general fibrous materials are better at deflecting heat than particle fillers. The fraction in adhesives, sealants, plasters and fillers was shown at that time as 25%. The most common fillers are clay and calcium carbonate. Decorating crack fillers contain similar levels of marble or dolomite. MTA powder is mixed with fillers in the resin. The mat is then coated with asphalt containing mineral fillers to make it waterproof. Natural fillers have been used since antiquity. Her enhanced lips from lip fillers created speculation and gained her publicity. Hence, repairs to wood using fillers may noticeable.