Tooth sensitivity is a condition when the nerve ending in the teeth are overly sensitive to hold hot and cold conditions. Drinking and eating hot or cold food may cause a sharp pain in the tooth. A material called dentin, which is what makes up the inside of your tooth, is protected by the enamel in the crown and the cementum in the root of the tooth. In cases when the dentin loses its covering, teeth may be become sensitive.
Causes of sensitive teeth
1. Inflammation caused by bacteria may lead to sensitive teeth.
2. Gum diseases such as gingivitis may cause the gums to retract and reveal the roots of your teeth.
3. Constantly grinding your teeth can cause the enamel to break down, which leads to exposure of the dentin.
4. Accumulation of plaque can cause sensitive teeth.
5. Various acidic foods such as lemon cause the enamel to be worn out.
6. Sensitive teeth is caused by decay of the tooth.
7. Various dental procedures such as teeth restoration and cleaning of the teeth cause the teeth to be sensitive.
Treatments for sensitive teeth
Tooth sensitivity is tooth discomfort in one or more teeth that is triggered by hot, cold, sweet or sour foods and drinks, or even by breathing cold air. The pain can be sharp, sudden, and shoot deep into the nerve endings of your teeth.
What Causes Tooth Sensitivity?
Tooth sensitivity occurs when the underlying layer of your teeth - the dentin - becomes exposed as a result of receding gum tissue (the protective blanket that covers the tooth roots). The roots, which are not covered by hard enamel, contain thousands of tiny tubules leading to the tooth's never center (the pulp). These dentinal tubules (or channels) allow the stimuli - for example, the hot, cold, or sweet food - to reach the nerve in your tooth, which results in the pain you feel.
There are many factors that may lead to the development of tooth sensitivity, including.
Brushing too hard. Over time, brushing too hard or using a hard-bristled toothbrush can wear down enamel and cause the dentin to be exposed. It can also cause recession of the gums (the gum tissue pulls away from the teeth).
Plaque build-up. The presence of plaque on the root surfaces can cause sensitivity.
Mouthwash use. Long-term use of some mouthwashes. Some over-the-counter mouthwashes contain acids that can worsen tooth sensitivity if you have exposed dentin (the middle layer of the tooth). The acids further damage the dentin layer of the tooth. If you have dentin sensitivity, ask your dentist about the use of a neutral fluoride solution.
Recent routine dental procedures. Sensitivity can occur following teeth cleaning, root planing, crown placement, and tooth restoration. Sensitivity caused by dental procedures is temporary, usually disappearing in 4 to 6 weeks.
What Can I Do to Reduce Tooth Sensitivity?
Maintain good oral hygiene. Continue to follow proper brushing and flossing techniques to thoroughly clean all parts of your teeth and mouth.
If you still have discomfort, talk to your dentist. There may be some dental procedures that may help reduce sensitivity, including the use of.
WHAT IS IT ?
Your teeth can become discolored by stains on the surface or by changes inside the tooth. There are three main types of tooth discoloration:
Symptoms include stains on the enamel. They can range from white streaks to yellow tints or brown spots and pits. If the enamel has worn away, and dentin is showing through, you may notice a yellow tint.
No special tests are needed. A dentist or other dental professional can diagnose tooth discoloration by looking at the teeth.
Some tooth discoloration can be removed with professional cleaning. An example would be the stains caused by coffee. Many stains are permanent, however. Teeth sometimes can be whitened with a bleaching gel. In some cases, if the discoloration is severe, a crown or veneer may be required to cover it.
Brushing your teeth after every meal will help to prevent some stains. Dentists recommend that you rinse your mouth with water after having wine, coffee or other drinks or foods that can stain your teeth. Regular cleanings by a dental hygienist also will help to remove surface stains.
Intrinsic stains that are caused by damage to a nerve or blood vessel in a tooth sometimes can be prevented. You may need to have root canal treatment to remove the inner part of the tooth (the pulp) before it has a chance to decay and darken. However, teeth that have root canal treatment may darken anyway.
To prevent intrinsic stains in children, avoid too much early exposure to fluorides. Once the enamel is formed, fluoride will not discolor teeth.
TreatmentMany extrinsic stains caused by food and drink can be removed by regular professional cleanings and home care. Good home care includes brushing, flossing and rinsing after meals.
Discoloration often can be removed by applying a bleaching agent to the tooth enamel. One technique is called "power bleaching." With this method, the dentist applies a light-activated bleaching gel. It causes the teeth to get significantly whiter in about 30 to 45 minutes. Several follow-up treatments may be needed, or take-home bleaching trays may be provided.
It's also possible to remove discoloration at home. You will use a bleaching gel and a mouth guard given to you by your dentist. The bleaching gels designed for use at home aren't as strong as those applied by your dentist. This means that the process takes longer — usually two to four weeks.
You also can buy whitening products over the counter. They contain a weaker bleach than the products you can get from your dentist. The whitening agent is applied as a gel placed in a mouthpiece or as a strip that sticks to your teeth. Over-the-counter mouthpieces fit less securely than the kind you get from your dentist, but they will lighten your teeth over time.
Whitening toothpastes may remove minor stains. They do not actually change the overall color of your teeth.
If your tooth has darkened after a root canal, bleaching the enamel won't help. Your dentist can apply a bleaching material to the inside of the tooth, or you may consider a crown or veneer.
Bleaching will not lighten some stains, such as tetracycline stains. In this case, your dentist may recommend covering the discolored areas. This also may be useful when the tooth is chipped or badly damaged.
A tooth can be covered with a color-matched composite bonding material. Another option is to get veneers. These are thin ceramic shells that cover the outer surfaces of the teeth.
When To Call a Professional
Tooth discoloration is mainly a cosmetic problem. Visit a dentist if you're unhappy with how your teeth look. Any change in a child's normal tooth color should be evaluated by a dentist.
The prognosis is very good for extrinsic stains. Intrinsic stains may be more difficult or take longer to remove.