The prevalence of cervical enamel projections are highest for which of the following teeth?

Cervical enamel projections are extensions of enamel that can extend from the CEJ (cementoenamel junction) towards the furcation area of multi-rooted teeth. Their prevalence can vary among different types of teeth, and research indicates that they are particularly common on the roots of molars, especially the mandibular and maxillary second molars.

In the case of mandibular and maxillary second molars, the anatomical structures and the development of enamel can predispose these teeth to have cervical enamel projections. The specific morphology, including the presence of a more pronounced furcation area and enamel developmental complexities, contributes to the higher likelihood of these projections occurring around the second molars compared to other teeth. This makes understanding their presence crucial in dental practice, particularly in periodontal assessments and treatments, as they may affect the retention of plaque and thus influence periodontal health.

The other choices include various combinations of molars and do not align with the established data concerning the typical prevalence of these projections. Therefore, focusing on the second molars provides a more accurate representation of where cervical enamel projections are most commonly found.