Abstract
Prediction of Dento-Skeletal Effects Changes in Skeletal Class II Division I In Early Adolescents and Young Adults Treated with Herbst Appliance
Highlights
On the sagittal plane of the cranium the relative spatial position and proportion of maxillary and mandible bones are factors influencing facial profiles and the oral functions
A protrusive position of the mandible with respect to the maxillary bone is namely classified as class II° maxillary-mandibular relationship [3]
The normal sagittal maxillary-mandibular relationship is classified as class I° such condition exists when the angle formed by sottospinale, nasale and supramental points assume values in the interval of 0° to 4°
Summary
On the sagittal plane of the cranium the relative spatial position and proportion of maxillary and mandible bones are factors influencing facial profiles and the oral functions. Alteration of the normal maxillary-mandibular relationship determines skeletal dental malocclusions [1]. A protrusive position of the mandible with respect to the maxillary bone is namely classified as class II° maxillary-mandibular relationship [3]. The normal sagittal maxillary-mandibular relationship is classified as class I° such condition exists when the angle formed by sottospinale, nasale and supramental points assume values in the interval of 0° to 4° (referring to Stainer cephalometric analysis). Class II° skeletal relationships are due to a retruded position of the mandible with the respect to the Anterior Cranial Base (ACB) [4]. The treatment of class II° skeletal malocclusion consists of a set of interventions aimed to re-establish a correct spatial position of maxillary and mandibular bones [6]
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