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Summary

Objective. The aim of the study was to investigate the signs and symptoms of temporomandibular disorders (TMD) as well as the relationships between TMD, malocclusion and the need for orthodontic treatment. Material and methods. Forty consecutive patients (36 F, 4 M) with a median age of 35 (IQR 18) years. Eighteen patients had Class I, 22 patients Class II malocclusion. A rating scale for the influence of TMJ pain/discomfort on the activities of daily living (ADL) was used simultaneously with clinical examination. Helkimo's Dysfunction Index (D_i) and the Index of Orthodontic Treatment Need (IOTN) were determined for each participant. Results. Pain/discomfort in the TMJ area was positively correlated with interferences in laterotrusion (p=0.021), pain on palpation over the posterior aspects of TMJ (p=0.012) and pain in the masticatory muscles (p=0.023).

The impact of TMJ pain/discomfort was greatest on the performance of a yawn and on opening the mouth wide. There was no statistically significant correlation between malocclusion, D_i and IOTN. A comparison of Class I malocclusion patients to those with Class II malocclusion revealed no statistically relevant differences in Di and ADL.

Conclusion. In patients with malocclusion, pain from TMJ has a significant negative impact on activities of daily living. No significant differences were observed between Angle Class I and Class II groups of patients with respect to TMD. Orthodontic treatment was required for both groups.

The study was supported by the Estonian Science Foundation Grant No. 6591 and SF0180081s07.

Key words: ADL, IOTN, malocclusion, pain, TMJ.

Received: 21 06 2007

Accepted for publishing: 10 09 2007

*Department of Stomatology, Faculty of Medicine, University of Tartu, Estonia

Eliis Kaselo* – D.D.S.
Triin Jagomägi* – D.D.S., MSc., MOrthRCSEd, assist. prof.
Ülle Voog* – D.D.S., Lic.Med., Dr.Med, assoc. prof.

Address correspondence to: Eliis Kaselo, Nõva 2a-5, Tartu 50104, Estonia.
E-mail: eliiskaselo@hot.ee



	Baltic Dental and Maxillofacial Journal

September, 2007, Vol. 9, No. 3 CONTENTS SCIENTIFIC ARTICLES Condylar and mandibular morphological criteria in the 2D and 3D MSCT imaging for patients with Class II division 1 subdivision malocclusion 67-71 Occupational hazards of dental profession to psychological wellbeeing 72-78 Malocclusion and the need for orthodontic treatment in patients with temporomandibular dysfunction 79-85 The relationship between the severity of malposition of the frontal teeth and periodontal health in age 15-21 and 35-44 86-90 The influence of early orthodontic treatment on the growth of craniofacial complex in deciduous occlusion of unilateral cleft lip and palate patients 91-96 © 2007 Stomatologija		Stomatologija 2007; 9 (3): 79-85 254 KB Malocclusion and the need for orthodontic treatment in patients with temporomandibular dysfunction Eliis Kaselo, Triin Jagomägi, Ülle Voog Summary Objective. The aim of the study was to investigate the signs and symptoms of temporomandibular disorders (TMD) as well as the relationships between TMD, malocclusion and the need for orthodontic treatment. Material and methods. Forty consecutive patients (36 F, 4 M) with a median age of 35 (IQR 18) years. Eighteen patients had Class I, 22 patients Class II malocclusion. A rating scale for the influence of TMJ pain/discomfort on the activities of daily living (ADL) was used simultaneously with clinical examination. Helkimo's Dysfunction Index (D_i) and the Index of Orthodontic Treatment Need (IOTN) were determined for each participant. Results. Pain/discomfort in the TMJ area was positively correlated with interferences in laterotrusion (p=0.021), pain on palpation over the posterior aspects of TMJ (p=0.012) and pain in the masticatory muscles (p=0.023). The impact of TMJ pain/discomfort was greatest on the performance of a yawn and on opening the mouth wide. There was no statistically significant correlation between malocclusion, D_i and IOTN. A comparison of Class I malocclusion patients to those with Class II malocclusion revealed no statistically relevant differences in Di and ADL. Conclusion. In patients with malocclusion, pain from TMJ has a significant negative impact on activities of daily living. No significant differences were observed between Angle Class I and Class II groups of patients with respect to TMD. Orthodontic treatment was required for both groups. The study was supported by the Estonian Science Foundation Grant No. 6591 and SF0180081s07. Key words: ADL, IOTN, malocclusion, pain, TMJ. Received: 21 06 2007 Accepted for publishing: 10 09 2007 Department of Stomatology, Faculty of Medicine, University of Tartu, Estonia Eliis Kaselo – D.D.S. Triin Jagomägi* – D.D.S., MSc., MOrthRCSEd, assist. prof. Ülle Voog* – D.D.S., Lic.Med., Dr.Med, assoc. prof. Address correspondence to: Eliis Kaselo, Nõva 2a-5, Tartu 50104, Estonia. E-mail: eliiskaselo@hot.ee