The cost of dental cleaning in hospital depends on the distribution of dental calculus. Dental calculus is a soft scale formed by food residue accumulated around teeth after eating, which calcifies under the action of saliva to form dental calculus. Dental calculus is divided into supragingival calculus and subgingival calculus. The supragingival tartar is visible to the naked eye and adheres to the surface of the teeth above the gums, pressing the gums, resulting in redness, bleeding and overflow of the gums. It is necessary to extract teeth by ultrasonic vibration and then polish them (that is, simply wash teeth), which is also the most basic periodontal treatment.
Subgingival calculus is a kind of calculus attached to the subgingival root surface, which is invisible to the naked eye and is extremely harmful to teeth, and it is easy to cause periodontal fiber breakage, alveolar bone destructive absorption and tooth loss. It is difficult to remove subgingival stones only by ultrasound, and subgingival curettage is needed. After scaling, the root surface should be leveled to prevent stones from attaching again. Subgingival curettage requires manual removal of tartar, and after curettage, it needs to be washed around the gums and coated with medicine, which is expensive.
Therefore, it takes about two or three hundred yuan to simply wash your teeth once; If subgingival curettage is needed, the cost is about several thousand yuan.