text: If Dr. One, says the patient needs braces for 6 months, but Dr. Two says the patient needs braces for a year and a half, the patient is likely to see a third dentist. Dr. Three says something completely different, that she needs no braces, with no evidence, so the patient knows the orthodontist is untrustworthy. However, Dr. Four confirms the patient will need braces for a year in a half so the patient knows both Dr. Two and Dr. Four are their best options because they agree.