Jaakko Paunonen1, Mika Helminen2,3, Kirsi Sipilä4,5, Timo Peltomäki6,7. 1. Department Oral Diseases, Seinäjoki Central Hospital, Seinäjoki, Finland. 2. Research, Development and Innovation Centre, Tampere University Hospital, Tampere, Finland. 3. Faculty of Social Sciences, Health Sciences, Tampere University, Tampere, Finland. 4. Research Unit of Oral Health Sciences, Faculty of Medicine, University of Oulu, Oulu, Finland. 5. Oral and Maxillofacial Department, Medical Research Center Oulu, Oulu University Hospital, Oulu, Finland. 6. Field of Dentistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. 7. Institute of Dentistry, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland.
Abstract
BACKGROUND: Severe malocclusions may cause functional and aesthetic problems and symptoms of temporomandibular disorders (TMD). Studies have investigated association between malocclusions and TMDs and shown controversial findings. OBJECTIVE: Purpose of this investigation was to examine the prevalence of TMD sub-diagnoses, using Diagnostic Criteria for the TMD (DC/TMD), in patients with Class II malocclusion and retrognathic mandible who had undergone mandibular advancement surgery 4-8 years previously, and to compare their frequencies with non-treated patients with a similar pre-existing condition. METHODS: Study cohort comprised 151 patients who had orthognathic treatment due to mandibular retrognathia in 2007-2011. Seventy-seven (51%) participated in the study (Group 1). Group 2 comprised 22 patients who were planned for orthognathic treatment but had not started their treatment. Patients filled in the Finnish version of the DC/TMD Symptom Questionnaire and were examined using to the DC/TMD Axis I. DC/TMD Symptom Questionnaire were inquired by phone from 24 of the 74 patients who did not participate in the study. RESULTS: Results showed that Group 2 had more myalgia (13% vs 50%, P < 0.001) and arthralgia (18% vs 65%, P < 0.001) sub-diagnoses than Group 1. A tendency was noted that Group 2 had more pain-related TMD symptoms than Group 1. No differences were found between Groups 1 and 3 in gender and age distribution or frequency TMD symptoms. CONCLUSION: Prevalence of especially pain-related TMD diagnoses was higher in Group 2 compared to Group 1, thus indicating a possible beneficial effect of this treatment for TMD.
BACKGROUND: Severe malocclusions may cause functional and aesthetic problems and symptoms of temporomandibular disorders (TMD). Studies have investigated association between malocclusions and TMDs and shown controversial findings. OBJECTIVE: Purpose of this investigation was to examine the prevalence of TMD sub-diagnoses, using Diagnostic Criteria for the TMD (DC/TMD), in patients with Class II malocclusion and retrognathic mandible who had undergone mandibular advancement surgery 4-8 years previously, and to compare their frequencies with non-treated patients with a similar pre-existing condition. METHODS: Study cohort comprised 151 patients who had orthognathic treatment due to mandibular retrognathia in 2007-2011. Seventy-seven (51%) participated in the study (Group 1). Group 2 comprised 22 patients who were planned for orthognathic treatment but had not started their treatment. Patients filled in the Finnish version of the DC/TMD Symptom Questionnaire and were examined using to the DC/TMD Axis I. DC/TMD Symptom Questionnaire were inquired by phone from 24 of the 74 patients who did not participate in the study. RESULTS: Results showed that Group 2 had more myalgia (13% vs 50%, P < 0.001) and arthralgia (18% vs 65%, P < 0.001) sub-diagnoses than Group 1. A tendency was noted that Group 2 had more pain-related TMD symptoms than Group 1. No differences were found between Groups 1 and 3 in gender and age distribution or frequency TMD symptoms. CONCLUSION: Prevalence of especially pain-related TMD diagnoses was higher in Group 2 compared to Group 1, thus indicating a possible beneficial effect of this treatment for TMD.
Authors: Lucas Caetano Uetanabaro; Jennifer Tsi Gerber; Katheleen Miranda Dos Santos; Michelle Nascimento Meger; Delson João da Costa; Erika Calvano Küchler; Aline Monise Sebastiani; Rafaela Scariot Journal: Oral Maxillofac Surg Date: 2022-03-09