Clinical trial NCT04618445: Prevalence of Temporomandibular Joint Disorders Among Egyptian University Undergraduate Students
Official title: Prevalence of Temporomandibular Joint Disorders Among Egyptian University Undergraduate Students
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: TMD
Bruxism
Lead sponsor: Cairo University
Sponsor class: OTHER
First posted: 2020-11-06
Enrollment: 1000
Sex: ALL
Minimum age (years): 18
Maximum age (years): 45
Standard ages: ADULT
Accepts healthy volunteers: yes
Observational model: ECOLOGIC_OR_COMMUNITY
Time perspective: CROSS_SECTIONAL
Sampling method: PROBABILITY_SAMPLE
Study population: All undergraduate students in Egyptian Universities

Brief summary: This study will take place in Egypt. Undergraduate students from different faculties of the Egyptian Universities will participate. The study began in December 2020.

Detailed description: Matching criteria and allocation ratio: The planned study a single arm cross sectional study, in which the prevalence of students of TMD will be reported. The association between TMD and other variables will be also studied. Therefore, no matching criteria or allocation ratio are required.

Variables It has been shown from literature that many variables are associated with TMD. It was therefore, decided to study the correlation between these variables with TMD among Egyptian population via a regression model once the assumption for regression analysis are satisfied. Binary variables are analyzed through logistic regression, while continuous data through a multivariable regression analysis. If one of the assumptions for regression analysis is violated, a subgroup analysis for each variable will be considered.

These Variables include gender, age, psychological stress, oral habits, parafunctional activities as gum chewing, previous dental treatments , previous trauma to jaws.

Data sources and management Data sources, the answered questionnaires and subsequent spread sheets will only be shared by the team members.

Addressing potential sources of bias Selection bias: an email will be sent to all the students through their university email addresses. Due to the COVID-19 situation only convenient sampling could be used. whenever possible printed questionnaires are handed to the students.

Quantitative variables: Handling of quantitative variables in the analyses None of the data is a continuous variable. All exposure factors are binary or categorical data. Therefore, no plans are set for simplifying continuous data or converting them into binary ones.

Eligibility criteria: Inclusion Criteria:

1. -Undergraduate students in Egyptian universities
2. Age ranges from 18-45 years
3. Males and females

Exclusion criteria

1. school students
2. students not living in egypt

Primary outcomes:
measure: prevalence of TMDs in Egyptian university students
timeFrame: 3 months
Secondary outcomes:
Other outcomes:
Locations:
city: Cairo
country: Egypt
facility: Cairo university
Study officials:
affiliation: Cairo University
name: Ramsis Magdy, BDS
role: PRINCIPAL_INVESTIGATOR
affiliation: Cairo University
name: Azza Hussein, PhD
role: STUDY_CHAIR
affiliation: Cairo University
name: Iman Radi, PhD
role: STUDY_DIRECTOR
affiliation: Cairo University
name: Maram Taema, Master
role: STUDY_DIRECTOR
affiliation: Cairo University
name: Amr Nagib, PhD
role: PRINCIPAL_INVESTIGATOR
References: