Custom appliances are also shown to be more comfortable and effective than a snoring mouth guard. Learn more about the importance of seeing a dentist for a custom mouthpiece and what qualities to look for in your snoring and sleep apnea dentist.
Twins are two offspring produced by the same pregnancy. Twins can be either monozygotic, meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic, meaning that they develop from two different eggs. In fraternal twins, each twin is fertilized by its own sperm cell. In contrast, a fetus that develops alone in the womb is called a singleton, and the general term for one offspring of a multiple birth is multiple. Non-related look-alikes whose resemblance parallels
Orlando sees double as twin convention hits the area. You're not seeing double: Twins descend on Disney. While shopping at Downtown Disney Friday, twin siblings Jean Kelly and Joyce Peterson, from Minnesota, and twin siblings Meryl Hollar and Cheryl Hollar, of North Carolina, talk about the the International Twins Convention that is in Orlando.