 [ Symptoms ] no peroid in two months occasional spotting burning sensation defintely not pregnant i have not recieved my period in two months i have had spotting on the 2nd month of absence i also have noticed that its a lot hotter down there and i feel kind of a burning sensation i am definitely not pregnant [ Disease ] sensodyne is a toothpaste for patients with sensitive teeth who would like to whiten their teeth the jury is out on what is an appropriate age to whiten teeth whitening toothpastes have polishing agents in addition to the mild abrasives that help remove surface stains from teeth teeth that have surface stains are cleaned and whitened by whitening toothpastes however deeper stains will not be affected if your teeth have deeper darker stains due to injury or certain medications a more thorough brightening treatment such as bleaching or microabrasion will be required if you choose to use whitening toothpaste make sure the toothpaste contains fluoride as well as whitening agents