[Vertical typology and natural posture of the head].

The relationship between head posture and vertical typology were evaluated in a sample of 98 young adults. Sub groups of opposite typology were also compared. A strong correlation existed between head posture and facial divergence when evaluated with the variable SN/PM and face post./face ant. Head posture is in extension when facial divergence is important. No correlation existed between posture and % face inf. Face post./face ant. was the best variable in evaluating the relationship between vertical typology and head posture.