Peppermint oil is not a treatment for toothache. Toothache is mostly seen in pulpitis or gingivitis. The pain of pulpitis is more intense, eating pain, night sleep pain aggravated, sometimes can wake up from sleep pain. Hot, cold, sweet and sour stimulation pain, etc. Once pulpitis has set in, peppermint oil will not help and a root canal of the tooth is needed for relief. Chronic gingivitis is an inflammation of the gums caused by soft tartar or tartar irritation around the teeth, and requires scaling and medication to improve. Other pain caused by gingivitis will require a visit to the doctor to determine the type of disease before a specific treatment plan can be developed. Pain caused by pulpitis requires root canal treatment, chronic gingivitis causes gum pain that requires scaling and medication to relieve pain, and peppermint oil has no significant effect and requires a visit to the dentist.