In a recent review about desensitising toothpastes (Bae J, Kim Y, Myung S. Desensitizing toothpaste versus placebo for dentin hypersensitivity: a systematic review and meta-analysis. J Clin Periodontol. 2014 Dec 5) the conclusions were: “The study reports that there is sufficient evidence to support the use of potassium-, stannous fluoride-, potassium and stannous fluoride-, calcium sodium phosphosilicate-, and arginine-containing desensitising toothpastes for dentin hypersensitivity, but not the use of strontium-containing desensitising toothpaste.”
Quite interesting since they reviewed 31 RCTs involving 2436 patients were included. 3 studies were considered to be high quality, 23 of moderate quality and 5 of low quality.
you could read more about at http://www.thedentalelf.net/2015/01/20/dentine-hypersensitivity-most-desensitising-toothpastes-provided-benefit-finds-review/
Grab your toothbrush, and start reading