The general rule is six months after eruption of the first tooth. Taking your child to the dentist at a young age is the best way to prevent problems such as tooth decay, and can help parents learn how to clean their child's teeth and identify his or her fluoride needs.
The retching phase is characterized by a series of violent spasmodic abdomino-thoracic contractions with the glottis closed. During this time, the inspiratory (inhalatory) movements of the chest wall and diaphragm are opposed by the expiratory contractions of the abdominal musculature.
Historical Examples. 1  From the door of the sinking helicopter retch was staring at the raft. 2  But a spasm of disgust at the uncleanness of the task to be done made me retch and pause. 3  Something like a cold hand seemed to have closed over my stomach and for an awful moment I gagged and tried to retch.