The purpose of this study is to determine if the facial pattern is related to the degree of bruxism because the muscles of mastication are the factors of force to the wear of the teeth.

Inclusion Criteria:

1. Both genders
2. Age 18 to 60 years
3. Case studies to understand orthodontic intraoral photographs of the upper and lower dental arches, and models of lateral skull radiography for orthodontic
4. Cases with any facial biotype development.

Exclusion Criteria:

1. Totally toothless people
2. Partially toothless the posterior (include both molars and premolars).
3. Dawn Syndrome,alzheimer , partial or bilateral facial palsy, autism, which manifest with bruxism
4. Some other syndrome which alters the pattern of facial development as Pierre Robin,crouzon

radiographs, photographs and dental plaster models of people who come to orthodontic treatment