Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Study of Stomatognathic System of the Obese Subjects (SSSCDFO)

This study has been completed.
Information provided by:
University of Sao Paulo Identifier:
First received: March 23, 2009
Last updated: NA
Last verified: March 2009
History: No changes posted
The aim is to identify differences in the stomatognathic system, mastication and deglutition functions between obese and normal weight subjects.


Study Type: Observational
Study Design: Time Perspective: Cross-Sectional
Official Title: Study of Stomatognathic System,Chewing and Deglutition Functions in the Obese Subjects

Further study details as provided by University of Sao Paulo:

Enrollment: 40
Study Start Date: May 2007
Study Completion Date: February 2009
Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Obese subjects
Normal-weight subjects

Detailed Description:
The aim of this study was to identify differences in the stomatognathic system between obese and normal weight subjects. The habitual chewing of a French bread and deglutition of solids and liquid was evaluated five times in obese subjects and controls. The tonus of the lips, tongue, cheeks, masseter and temporal muscles were evaluated by clinical observation and palpation and defined as either normal or reduced. Twenty obese patients (body mass index (BMI) > 30kg/m2) and twenty volunteers of normal weight (BMI 18.5-24.9 Kg/m2) were evaluated.

Ages Eligible for Study:   18 Years to 58 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
twenty obese patients (6 Male /14 Female, mean age 32.2 ± 9.9, mean BMI 43,3 ± 9.6 Kg/m2) and twenty lean volunteer (4 Male / 16 Female mean age 30.7 ±6.7, mean BMI 22.3 ± 1.9 Kg/m2)

Inclusion Criteria:

  • healthy adults male and female
  • healthy dentate
  • body mass index (BMI) higher than 30 Kg/m2 for the obesity group and (BMI) lower than 25/m2 for the normal weight group.

Exclusion Criteria:

  • face deformity
  • alterations in morphology of lips and tongue
  • without teeth or with lack of one tooth (excluding third molars)
  • Malocclusion Angle's Class II and III
  • pain during chewing
  • pathology of the temporomandibular joint
  • neurological pathology
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00868049

Medical School of University of São Paulo
São Paulo, Brazil, 05403-900
Sponsors and Collaborators
University of Sao Paulo
Principal Investigator: Adriana B Figueiredo, MS Clinic Hospital of Medical School of University of São Paulo
  More Information

Responsible Party: Adriana Bueno de Figueiredo/ Master Student, Clinic Hospital of Medical School of University of Sao Paulo Identifier: NCT00868049     History of Changes
Other Study ID Numbers: ADRIANABF1
Study First Received: March 23, 2009
Last Updated: March 23, 2009

Keywords provided by University of Sao Paulo:
orofacial motricity
obesity processed this record on May 25, 2017