Dental sensitivity

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Dental sensitivity is the discomfort, pain in many situations that occur in one or more teeth in contact with cold, warm or sweet drinks or foods, when brushing or chewing.

This is a problem that affects the population in a large percentage: statistically one in four adults suffers from tooth sensitivity.

The pain is sharp, sudden, short, usually a few seconds – the length of time the tooth is in contact with the stimulus.


1. Overview
2. Causes of sensitive teeth
3. Prevention of dental sensitivity

Causes of sensitive teeth

Dental sensitivity is due to dentine exposure in outdoor environment. Dentin is the middle layer of the tooth on which are plenty of dentinal tubules, channels containing nerve endings of tooth pulp.

Normally dentin is protected by enamel (tooth crown) or cementum (root). There are situations in which enamel or cementum is thin or disappear from some areas, resulting in dentin’s denudation and often in specific pain occurrence by direct action of the stimuli on nerve endings.

Factors responsible for the appearance of the dental problems are multiple:

- aggressive tooth brushing
- gingival retraction may be caused by poor dental hygiene, physiological involution that occurs once with the aging or occlusal trauma
- bruxism (involuntary teeth gnashing)
- long-term use toothpaste with abrasive particles (pasta that prevent tartar, whitening pastes) and other products used by some patients (table salt, sodium bicarbonate, etc.).
- excessive consumption of acidic foods and fizzy drinks
- bulimia, by affecting enamel in contact with gastric acid
- after regular scaling or bleaching

Prevention of dental sensitivity

To prevent sensitive teeth, first you have to maintain good oral hygiene:

- Brushing should be done twice a day: in the morning and evening. Brushing technique must be correctly applied: brush teeth from the gum to the free edge of the tooth, insisting on each area is included in the brush, for 8-10 times, without applying high pressure)

- Toothbrush should be medium or soft and be changed every 2-3 months

- Toothpaste used is not abrasive.

Periodically (once every 8 or 12 months) is recommended to perform scaling and professional brushing in the dental office. If you suffer from bruxism (easy to detect disease in periodic dental checks) very effective is wearing a splint at night, during sleep being unable control grinding.

Also, avoid excessive consumption of acidic foods and drinks! Keep in mind that eating disorder treatment reduces tooth sensitivity.

If tooth sensitivity is already installed, its effective treatment refers to the use of desensitizing toothpaste, topical application of fluoride gels at home or in the office, the application of substances that are designed to seal the channels exposed to dental treatment, which is done by your dentist in the office.



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