The correlation between Overbites and Anger Level

Abstract

This paper is going to focus on the correlation between overbites and anger level based on facial feedback theory，in which it means people can feel emotions based on their facial expressions. Overbites are orthodontics conditions where upper teeth cover the lower teeth completely forcing the upper lip to protrude. Anger is one of the basic emotions, and it’s the condition when people feel hate towards others. This paper will recruit participants who have overbites, people who have overbites tend to have tense muscles around their mouth.  and researchers should use self-reports, questionnaires filled by participants’ family members and test the cortisol level of participants before and after participants' teeth correction. The goal of this research is to find out whether correcting overbites can lower people’s anger level, which helps participants reduce more of negative emotions.