The role of permanent first molar relationship in assessing class ii malocclusions based on the analysis of diagnostic models from the palatal side.

Aim: The aim of the work is to determine the significance of posterior relationship between the first upper and lower molars from the palatal side in diagnosing Class II malocclusions.

Material And Methods: One hundred and fifty diagnostic models and lateral cephalograms of patients from the Zbigniew Żak District Memorial Outpatient Clinic in Cracow were assessed.

Results: Out of 150 patients, skeletal Class II was diagnosed in 108 patients based on measuring the ANB angle (>4°), and in 115 patients based on the Wits appraisal (≥2 mm).