When a dentist refers a patient to another dentist due to financial interest, what condition must be met?

The condition that must be met when a dentist refers a patient to another dentist due to financial interest is that the referral can only occur if it is in the best interest of the patient. This principle emphasizes the ethical obligation dentists have to prioritize patient welfare above their own financial interests.

In practice, this means that if a dentist has a financial stake in the referral, they must ensure that the referral aligns with what is best for the patient's health and treatment needs. This reflects the overarching standard of care and ethical guidelines in dentistry, which advocate for making decisions based on the patient's best interests rather than personal gain.

For the other options, while they include relevant considerations, they do not capture the primary ethical requirement. The availability of the referring dentist for follow-up, agreement on referral terms between dentists, and the patient's agreement to the referral are important factors but do not fully address the critical condition of prioritizing the patient's best interest when financial interests are involved.