Admissions officers are looking for specific things in recommendation letters. It is important to nail key characteristics like interpersonal skills, teamwork, and personality. The admissions director emphasized being very careful picking who writes you a letter of recommendation. Do not go to a professor that you got an “A” in just because you got an “A”. Keep in mind that the dental schools have your transcript and as a result, having a letter of recommendation emphasizing your performance in the class does not bring any new advantages to your application.