Whenever the teeth are moved for the first time, it is common for patients to experience some discomfort with their teeth. The teeth may feel "soft" and may be tender on chewing. The tongue and cheeks also need to get used to having appliances on your teeth. For most patients, this discomfort usually passes within the first 2-4 days. Every time the braces are adjusted or new aligners are fitted, there will be a return of the discomfort, usually for approximately 24 hours. Most patients cope well with this level of discomfort without the use of painkillers like Panadol or Nurofen.