Association between posterior crossbite and/or deep bite and temporomandibular disorders among Palestinian adolescents: A sex comparison

ABSTRACT

Objective: To assess the prevalence of temporomandibular disorders (TMDs) and posterior crossbite and/or deep bite and any possible association between them.

Methods: One thousand-nineteen adolescents responded to a questionnaire regarding oral habits and TMD symptoms. Afterwards, they were diagnosed according to the Axis I of the DC/TMD and underwent a dental examination. The chi-square test was used for statistical analysis.

Results: A significant association  was found between posterior crossbite and some TMD diagnosis, but no association was found between deep bite and TMD, nor between occlusal diagnosis and bruxism. TMDs were more prevalent in girls. There was a significant sex difference (more among females) in the prevalence of painful TMDs.

Conclusion: Posterior crossbite in the adolescent population analyzed may be related to TMDs, in contrary to deep-bite. The presence of posterior crossbite may have different impact on TMD findings between the sexes.

KEYWORDS:

• Posterior crossbite
• deep bite
• adolescents
• sleep bruxism
• awake bruxism
• temporomandibular disorders
• sex

Acknowledgments

We want to express our gratitude to Eng. Nivin Yaghmour Khayat and Mahmoud Hilmi Yagmour for statistical consultation, and to Dr. Mohammad Elian, Dr. Nivin Shqair, Dr. Alaa Natsheh, Dr. Mahar Siam, Dr. Omar Al Qeq, Dr. Yahya Awadallah, Dr. Anas Akkawi, and Dr. Farid Nabris for their assistance.

Disclosure statements

1. The study was self-funded by the authors.

2. In this manuscript, all authors made a significant contribution to the findings and methods.

3. All authors have approved the final draft of the manuscript.

4. None of the authors had any financial support or relationships posing conflict of interest.

5. This study was approved by the Ministry of Education and Higher Education (Directorate General of High Health) of the Palestinian Authority (ethics approval number: MOEHE/1135893). All participants received a full explanation of the nature of the study and were asked to return the informed consent form signed by one of their parents on the day of their scheduled clinical examination.

Correction Statement

This article has been republished with minor changes. These changes do not impact the academic content of the article.