1 Secondary insomnia: Secondary insomnia means that a person is having sleep problems because of something else, such as a health condition (like asthma, depression, arthritis, cancer, or heartburn); pain; medication they are taking; or a substance they are using (like alcohol).ypes of Insomnia. There are two types of insomnia: primary insomnia and secondary insomnia. 1  Primary insomnia: Primary insomnia means that a person is having sleep problems that are not directly associated with any other health condition or problem.
Custom fitted mouthguards are expected to last 2-3 years with normal use. Chewing on the mouthguard dramatically reduces the expected longevity. Boil and bite mouthguards should last one season, possibly longer. Stock mouthguards could last several months.
The clear plastic ones look nicer, but will tend to wear out faster, and will need replaced periodically. You should bring these appliances with you to your regular dental checkups. This type of retainer is generally worn full time for at least 6 months and during the night for up to several years thereafter.A fixed wire bonded at the back of your front teeth: The fixed retainer is generally kept in place for at least 5 years, but we recommend lifelong wear.Removable retainers should be taken out during eating, high contact sports and when you brush your teeth. To clean the retainers, remove them first and brush them in tap water using a toothbrush and some toothpaste. fixed wire bonded at the back of your front teeth: The fixed retainer is generally kept in place for at least 5 years, but we recommend lifelong wear. Removable retainers should be taken out during eating, high contact sports and when you brush your teeth.