Temporomandibular joint function 10-15 years after mandibular setback surgery and six weeks of intermaxillary fixation
J. appl. oral sci
;
27: e20180510, 2019. tab
Article
Dans Anglais
| LILACS, BBO
| ID: biblio-1012508
ABSTRACT
Abstract Intermaxillary fixation (IMF) is a classic method for immobilization of the mandible after mandibular fractures and corrective surgery. However, it has been suggested that IMF may be a risk for developing temporomandibular joint (TMJ)-related symptoms, especially when applied for longer periods. Objective:
To evaluate the clinical function of TMJs and masticatory muscles 10-15 years after mandibular setback surgery and subsequent six weeks of IMF. The patients' self-reported TMJ and masticatory muscle symptoms were also addressed.Methodology:
Thirty-six patients (24 women and 12 men) treated with intraoral vertical ramus osteotomies and subsequent six weeks of IMF, underwent a clinical examination of TMJs and masticatory muscles 10-15 years after surgery and completed a five-item structured questionnaire reporting subjective TMJ-related symptoms. Mean age by the time of clinical examination was 34.1 years (range 27.2-59.8 years). The clinical outcome was registered according to the Helkimo clinical dysfunction index. Descriptive and bivariate statistics were performed and level of significance was set to 5%.Results:
Mean maximum unassisted mouth opening 10-15 years after surgery was 50.1 mm, (range 38-70 mm, SE 1.2), statistically significantly greater in men compared to women (p=0.004). Mean Helkimo dysfunction group was 1.5 (range 1-3, SE 0.10). Eighty-one percent experienced pain on palpation in either the masseter muscle, temporal muscle or both, and 31% experienced pain when moving the mandible in one or more directions. Thirty-one percent reported pain from palpating the TMJs. In the questionnaire, none reported to have pain during chewing or mouth opening on a weekly or daily basis, but 22% reported difficulties with maximum opening of the mouth.Conclusion:
Ten to fifteen years after mandibular setback surgery the patient's mandibular range of movement is good. Despite clinically recognizable symptoms, few patients reported having TMJ- or masticatory muscle-related symptoms in their daily life.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Articulation temporomandibulaire
/
Troubles de l'articulation temporomandibulaire
/
Malocclusion de classe III
/
Muscles masticateurs
/
Maxillaire
Type d'étude:
Etude d'étiologie
/
Études d'évaluation
/
Étude observationnelle
/
Étude pronostique
/
Recherche qualitative
/
Facteurs de risque
Limites du sujet:
Adulte
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
J. appl. oral sci
Thème du journal:
Dentisterie
Année:
2019
Type:
Article
Pays d'affiliation:
Norvège
Institution/Pays d'affiliation:
University of Bergen/NO
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