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.
What to Expect With Your New Appliance. Herbst. This appliance is bulky and may be uncomfortable for about a week or so. It may cause sores on the inside of the mouth where the appliance rubs on the cheeks and tongue. The upper expander covers the roof of the mouth and needs to be turned daily for 2-3 weeks. The patient may have some troubles speaking and swallowing.