What malocclusion class was identified for the 41-year-old female patient?

What malocclusion class was identified for the 41-year-old female patient?

• A. Class I
• B. Class II, Division II
• C. Class II, Division I
• D. Class III

Answer: (C)

Understanding this question starts with how the bite is analyzed in Angle’s system. A Class II pattern means the upper jaw is ahead of the lower jaw, so the upper first molar sits mesial (in front of) the lower first molar’s buccal groove. Division I specifies that the upper front teeth are protruded, giving a noticeable overjet. Division II, by contrast, features upper front teeth that are retroclined (especially the centrals) and often a deep bite. So, if the patient shows a Class II molar relationship and the maxillary incisors are proclined (forwardly tipped), that combination fits Class II Division I. If the incisors were retroclined with a deep bite, it would point toward Division II. The given classification aligns with a forward-positioned upper dentition and a Class II molar relationship, hence Class II Division I.

Understanding this question starts with how the bite is analyzed in Angle’s system. A Class II pattern means the upper jaw is ahead of the lower jaw, so the upper first molar sits mesial (in front of) the lower first molar’s buccal groove. Division I specifies that the upper front teeth are protruded, giving a noticeable overjet. Division II, by contrast, features upper front teeth that are retroclined (especially the centrals) and often a deep bite.

So, if the patient shows a Class II molar relationship and the maxillary incisors are proclined (forwardly tipped), that combination fits Class II Division I. If the incisors were retroclined with a deep bite, it would point toward Division II. The given classification aligns with a forward-positioned upper dentition and a Class II molar relationship, hence Class II Division I.