Which statement about the cervical bulge is correct?

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Enamel rods near the cervical area are oriented towards the biting surface.It causes a narrowing at the cervical portion of the tooth.It is a feature commonly seen in primary (deciduous) teeth.All the statements above are true.None of the above.

Explanation

The cervical bulge is notably a characteristic found in primary teeth, distinguishing them from permanent teeth. While enamel rods at the cervical region may be directed occlusally and constriction can occur at this area, the defining feature is its presence in deciduous teeth.