The skeletal classification of malocclusion was introduced by Paul Simon to categorize malocclusions based on underlying jawbone discrepancies rather than just dental alignment. This system aids in distinguishing between dentoalveolar and skeletal causes of malocclusion, which is essential for planning appropriate orthodontic or surgical interventions. It emphasizes the importance of anteroposterior jaw relationships and guides clinicians in diagnosing and managing cases needing orthognathic surgery. Unlike Angle's dental classification, Simon’s classification focuses on skeletal morphology, making it critical in comprehensive treatment planning.

Reference: Graber's Orthodontics, 7th Edition.