There is a close relationship between human appearance and social attractiveness, and the face is the most important part of interpersonal communication and appearance attraction, and the mouth and teeth are important aesthetic elements, which have a certain impact on social interaction and psychology. Most patients request orthodontic treatment more for aesthetic reasons than for chewing function, and orthodontic treatment has a greater effect on mental health and social gain than on oral health. So the question arises, does straight teeth really have an impact on getting a job? In response to this question, Professor Matheus of the Southwestern State University of Bahia and others conducted a fact-finding study and found that straight teeth will get more job opportunities, the results of which were published in the American Journal of Orthodontics and Dentofacial Orthopedics in October of this year. The researchers took pre-orthodontic photographs of 10 patients with various occlusal disorders (e.g., crowding, anterior open bite, gaps, etc.) and used image manipulation to alter the teeth’s features to make them look like they did after orthodontic treatment. Recruitment of 100 commercial companies responsible for the personnel department staff randomly divided into two groups (picture processing group and unprocessed group), the staff observed the group of photos and scored to answer questions about the possibility of the photo characters to be hired and the subjective judgment of their honesty, intelligence, work efficiency, the average age of the 100 staff 33.0 years old, women accounted for 54.0%, whites accounted for 67.0%. Unsurprisingly, recruiters were more likely to hire people with good-looking teeth, who were also perceived to have higher IQs. On the other hand, there were also characteristics across evaluators, with younger interviewers believing that people with straight teeth were smarter, but older interviewers seeing the opposite, with men tending to think that younger people were smarter and women thinking that older people were smarter. Dental variations do not seem to make a significant difference when it comes to recruiters judging the honesty and productivity of the person in the photo. We all know that dental aesthetics affects how others perceive us, but there hasn’t been much scientific evidence to support this. This study makes a strong case that well-aligned teeth make you look smarter and more attractive, making it easier to get a job. Although honesty and efficiency are not influenced by physical appearance, a perfect smile and a set of straight teeth are very important for getting a job or for being evaluated by others in a society that looks at people’s faces.