Dental wear and loosening of teeth can cause exposure of tooth surfaces, where the nerve endings of the tooth are less protected. This exposure very often causes the hypersensitivity of hot teeth, cold, sweet, citrus acidity, brushing, pressure and touch.
- Attention to the enamel
Attention to the enamel the first cause of dental hypersensitivity is the destruction of enamel exposing dentin. The dentine is crossed by very small channels containing a liquid that communicate between the inside and the outside of the tooth.
When the enamel is altered, the contact with substances causes a dilation or retraction of the liquid contained inside these channels. This activates the nerve endings, hence the feeling of pain. Several phenomena can alter the enamel layer, including: erosion, which is the dental destruction due to a chemical process that dissolves tooth enamel.
In general, many teeth are affected. (eg excessive consumption of soft drinks / energizers, citrus juices, chronic vomiting, acidic industrial vapors, etc.) Attrition, these small fractures are mostly found in the neck of the teeth close to the gum, where the enamel is thinner.
It is frequently found on the teeth that are most used to chewing. My teeth are off the ground the second cause of dental hypersensitivity is gum recession. If the gum does not completely cover the root of the tooth, then the dentine is directly in contact with the different stimuli that are cold, hot, and sweet, etc.
By a similar phenomenon to the previous one, the teeth become hypersensitive. Gingival recessions are often caused by phenomena such as abrasion and abreaction (described above), but also largely by periodontal diseases such as gingivitis and periodontitis that increase the prevalence of dental hypersensitivity.
- Temporary sensitivity
In addition to the sensitivity caused by tooth wear and gum recession, temporary sensitivity may occur in some cases such as:
- tooth whitening
- gum surgeries
- descaling or polishing
Bleaching is the most common cause of temporary sensitivity. It is noted that up to 75% of people who whiten their teeth suffer from discomfort.
- Beware of oral piercings increasingly common
It is not without consequences on the teeth and gums. Oral piercing is actually causing problems often imperceptible by the wearer because not visible and not painful daily. Whether placed on the upper or lower lip, the repeated rubbing of the piercing (metallic or non-metallic) against the teeth and / or the gum causes sometimes irreparable damage such as loss of enamel, dental fractures, bone loss, etc.
- The fight against dental hypersensitivity in everyday life
If you suffer from hypersensitivity, several solutions are available to you. At home, you can use toothpastes known as “sensitive teeth” available in all pharmacies. They act by obstructing the mouth of the small channels on the surface of the dentine.
Generally, these toothpastes are based on calcium, potassium, strontium, fluorine, etc. molecules, which will play the role of “plugs” of these channels. It should be remembered that dental hypersensitivity is very variable from one person to another and the use of these toothpastes can eliminate or at least reduce the symptoms after a recommended daily use of 3 months.
Other treatments are also available in the dental office as some varnishes, a fluoride solution, covering with a composite resin (white filling) or in some cases, a gum graft. However, these office treatments depend on the severity and location of sensitive areas. Do not hesitate to discuss it with your dentist, he will be able to advise you on a method adapted to your needs.