In general, children and teenagers should have their sports mouthguards changed every year to take into account growth spurts and changing dentition. Adults may keep wearing the same mouthguard until it starts feeling loose, uncomfortable or too tight.
Talk To Your Leichhardt Dentist About Mouthguards
Inspect your mouthguard regularly for signs of degradation or distortion, as these compromise its protective capacity and will require replacement as soon as possible. If you're unsure, bring your mouthguard to your Leichhardt dentist for assessment.