Holes are formed in the teeth by tooth decay which are known as dental cavities. These cavities or holes are also known as caries. Various types of treatments can be used to recover the function and proper form of damaged teeth but it depends on the condition of damage.
Factors responsible for dental cavities:
There are two basic factors which are responsible for dental cavities. These include bacteria and food which is rich in sugar and starch. About 500 different types of bacteria are present in our mouth. Plaque is formed when these bacteria interacts with food we eat and saliva, and form a sticky substance. The amount of starch increases the stickiness of plaque and for the time being it stays on the teeth it becomes harder and slowly converted into tartar or calculus. The bacteria present in the plaque convert sugar into acid that dissolves the tooth structure and result in the formation of holes. Those teeth in which plaque can easily accumulate are most vulnerable to tooth decay. Mostly plaque remains in the pits and in the areas between the teeth.
The teeth where plaque remains bacteria and acids are present there and it results in the destruction of tooth surface. First of all cavities appear in the outer layer of tooth which is known as enamel and with time it gets deeper and penetrates in the soft inner layer of tooth. After sometimes symptoms of cavities appear.
Risk Factors:
Saliva helps in prevention of plaque and wash away digest food particles. Dry teeth leave the teeth more vulnerable to tooth decay. Genetic factors that affect the tooth decay are tooth size, shape and position.
Symptoms of cavities:
When a cavity advances deep into tooth it results in increased sensitivity of food. If cavities are present on the front teeth they are easily detected by a person otherwise if they are small they are detected by dentist. Cavities formed between the teeth are detected by X-rays only. Other tools include ultrasound, fiber-optics are used to detect cavities.
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