Facial Patterns and Masticatory Symmetries

University of Campinas, Brazil

Status: Completed

Conditions: Facies

Study type: Observational

Funder types: Other

Identifiers

NCT01286363

monegfg11

Details and patient eligibility

About

The purpose of this study is to evaluate chewing side preference, and lateral asymmetry of occlusal contact area and bite force of individuals with different craniofacial patterns

Full description

Dolichofacial subjects presents poorer mechanical advantage, less efficiency in masticatory muscles during mastication and in generating bite force, smaller occlusal contact area and masticatory capacity when compared to brachyfacial individuals.

Wide, bilateral chewing cycles were related to better masticatory performance, however, unilateral chewing was reported to be very common in population, and it has been associated to lateral asymmetry on bite force and occlusal contact area.

It has been reported that dolichofacial subjects need greater muscular effort during mastication when compared to meso and brachyfacial subjects. This may cause functional overloading of weaker masticatory muscles, and may lead to functional asymmetries.

Enrollment: 86 patients

Sex: All

Ages: 18 to 32 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Full dentition, good general and oral health

Exclusion criteria

• Facial deformities
• Severe malocclusion
• History of signs and symptoms of temporomandibular disorder
• History of parafunctions
• History of maxillofacial surgery or jaw injuries and orthodontic treatment concluded in the last 2 years

Trial design

86 participants in 3 patient groups

Brachyfacial

Description:

Subjects with a horizontal facial growth pattern

Mesofacial

Description:

Subjects with a balanced facial growth pattern

Dolichofacial

Description:

Subjects with a vertical facial growth pattern