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Dentomaxillofacial Radiology (2007) 36, 336-340
© 2007 British Institute of Radiology
doi: 10.1259/dmfr/17973079

RESEARCH

Evaluation of temporomandibular joint in stress-free patients

JOV Filho1, FR Manzi*,2, DQ de Freitas3, FN Bóscolo3 and SM de Almeida3

1 Oral Radiology, University of Fortaleza, Fortaleza, Ceará, Brazil; 2 Oral Radiology, Department of Oral Diagnosis, School of Dentistry, Pontificy Catholic University, Belo Horizonte, Minas Gerais, Brazil; 3 Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas, Piracicaba, São Paulo, Brazil

*Correspondence to: Flávio Ricardo Manzi, Oral Radiology, Avenida Limeira, 901 CEP: 13414-018 Piracicaba, São Paulo, Brazil; Email: manzi{at}pucminas.br

Received 2 February 2006; revised 3 October 2006; accepted 21 October 2006

Objectives: The aetiology of temporomandibular disorders (TMD) is presently considered to be multifactorial, and stress has been regarded as an important factor in their onset. Many studies have evaluated the importance of stress in TMD; however, only patients with TMD and stress have been assessed. This study aimed at evaluating signs and symptoms of TMD in stress-free patients.

Methods: The temporomandibular joints (TMJs) of 40 stress-free patients were evaluated during clinical examination and in MRI.

Results: The individuals lived in an area without electric power supply or telephone services. They worked in agriculture and fishery. 77.5% of the patients presented normal mandibular function; 70% presented normal mandibular trajectory; 61.25% did not present sounds in TMJ and 93.75% did not present joint pain during palpation. Image screening showed that 70% of TMJ presented normal disc position. Only one patient (1.25%) presented TMD.

Conclusions: The absence of stress is a strong factor for the non-development of TMD.

Keywords: temporomandibular joint; temporomandibular joint disorders; temporomandibular joint disc; stress; magnetic resonance imaging






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