Ensure that it includes YOUR unique selling points, in order to gain an edge over the massive competition. It is important to include some basic facts about yourself (i.e. education, interests, experience) in order for the reader to gain a sense of who you are.
When you are invited for an interview, the questions you are asked will be based upon your personal statement for some medical/dental schools. Universities tend to check certain claims that are made on your statement, for example; exaggerated material. Therefore, it is essential that your personal statement is an accurate account of your application. The aim of your personal statement is to persuade the reader that you will be a great candidate for Medicine or Dentistry.