The depth of a person’s mouth is a measurement called the Maximum Mouth Opening (MMO), and it’s an important aspect of oral health and function.
In studies, MMO for adults has been reported to be around 50 mm, with a range from 32 mm to 77 mm. This measurement is taken from the incisors (the front teeth) to the molars (the back teeth) when the person opens their mouth as wide as they or can.
However, it’s important to note that there is some variation between individuals, and some research suggests that there may be gender differences in mouth depth as well. Men are typically able to open their mouths wider, to about 50-60 mm, while women tend to have an MMO of 45-55 mm.
Why is mouth depth important?
Having a healthy and functional mouth requires adequate space for the tongue, cheeks, and lips to move freely and comfortably. If a person has a reduced MMO, it can impact their speech, eating, and even their oral hygiene, as it can make it difficult to clean the back teeth properly.
A reduced MMO can be due to various factors, such as genetics, disease, injury, or dental problems like temporomandibular joint (TMJ) disorder. In some cases, a reduced MMO can be improved through orthodontic treatment, jaw surgery, or other interventions.
The depth of a person’s mouth, or MMO, is a significant aspect of oral health and function. It’s important for individuals to be aware of their own MMO, as well as any changes they may experience over time. If a person is concerned about their mouth depth or experiencing any related issues, they should seek the advice of a dental or medical professional.