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
1. Dichorionic/Diamniotic (di/di) twins. Di/di twins are the most common type of twins and the lowest risk. Di/di twins can be identical if the egg split very early, but fraternal twins are always di/di. In di/di twins, each twin has their own placenta and their own amniotic sac. Di/di twin pregnancies have increased risks over singleton pregnancies, but this is the best case scenario in twin world. The biggest worries tend to be going into preterm labor and making sure both babies are growing adequately.