Every tooth that gets worked on. ends up being a root canal. due to hyper sensitivity. why do i prevent hyper sensative nerves ?

More info needed: How deep were the cavities or old restorations being replaced? That plays a big role in how the nerve tissue reacts to the new restoration. Proper home care, a healthy diet, and regular dental check-ups will help prevent cavities and keep restorations small. have your dentist go over the teeth that needed root canal therapy.

Hypersensitive teeth: Tooth sensitivity is a recognized after effect of dental restorative work. Some discomfort is normal, but should resolve with time. It's best to make sure that teeth do not become involved with decay such that they require instrumentation, and to avoid unnecessary (ie cosmetic) procedures. In addition, today's popular penchant for "whiter" teeth can actually create hypersensitivity permanently.

Not always: Root canal treatment is needed for two main reasons: infection and /or trauma. Sometimes, a dental procedures can hurt the pulp. One example would be if a tooth is cut too close to the pulp while it's being prepared for a crown or filings. See your dentist for sensitive teeth consultation and treatment options.

Speak with dentist: Have the dentist explain the depth and location of the cavity prior to treatment. Have the dentist show you the full mouth series of x-rays and explain to you, what they anticipate. This way you are fully prepared for the treatment needed. After any restoration, it is a good idea to have temperate foods and beverages, until any sensitivity subside.