Diabetic patients must get professional dental cleanings every six months. Dentists often use a task light with magnification to perform dental cleanings. Many dentists include application of topical fluoride solutions as part of routine cleanings. These bubbles serve an important function for periodontal cleanings. Cleaning cartridge lifespan is usually from 15 to 50 cleanings. The risk of an ear infection drops with weekly ear cleanings using a veterinarian-recommended cleanser. Treatment includes topical selamectin, or injections of ivermectin and frequent cleanings of the rabbit's environment. Their beard can collect drool and food particles, making frequent cleanings essential. Routinely, only minor cleanings are done in the nest. The gum graffiti survived two full cleanings in the 1970s. Subsequent cleanings are usually accomplished without the use of soap. The daily cleanings use a Windex-like solution, while the semi-annual cleanings use Tide. Tempera paintings are thought to be more resistant to materials typically used during cleanings. Cleanings are nevertheless needed to restore original heat transfer capabilities. Temple worship included ritual sacrifice and ritual cleanings.