HIPAA is a federal law that protects patient privacy. It applies to all health care providers, including dentists. HIPAA prohibits the sharing of patient information without the patient's consent.

Sharing a photo of a patient's teeth would be considered a violation of HIPAA unless the patient has given their consent. Even if the photo is not shared with anyone outside of the dental office, it would still be a violation of HIPAA because the patient's privacy has been breached.

There are some exceptions to the HIPAA rule. For example, a dentist may share a photo of a patient's teeth with another dentist if it is necessary for the patient's treatment. However, the dentist must obtain the patient's consent before sharing the photo.

In general, it is not compliant with HIPAA to share a photo of a patient's teeth without the patient's consent.

It is not against HIPAA to call a patient's name in the waiting room. However, it is important to be mindful of the privacy of other patients in the waiting room and to speak quietly so that only the intended patient can hear their name. It is also important to avoid using any identifying information about the patient, such as their medical condition or social security number, when calling their name.