Is there a relationship between the presence of external root resorption in second molars adjacent to impacted mandibular third molars with awake bruxism and masticatory muscle activity?

Objectives This study aimed to assess whether awake bruxism and masticatory muscle activity could be related to external root resorption (ERR) in second molars adjacent to impacted mandibular third molars. Materials and methods Sixty patients, with requests for a cone-beam, computed tomography, were...

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Bibliographic Details
Published in:Clinical oral investigations 2024-06, Vol.28 (7), p.401, Article 401
Main Authors: Moreira-Souza, Larissa, Pelai, Elisa Bizetti, Bigaton, Delaine Rodrigues, Freitas, Deborah Queiroz, Oenning, Anne Caroline Costa, Asprino, Luciana
Format: Article
Language:English
Subjects:
Adult
Bruxism - physiopathology
Computed tomography
Cone-Beam Computed Tomography
Dental disorders
Dentistry
Electromyography
Female
Humans
Male
Mandible
Mandible - diagnostic imaging
Mandible - physiopathology
Mastication
Masticatory Muscles - physiopathology
Mechanical properties
Medicine
Molar - physiopathology
Molar, Third - diagnostic imaging
Molar, Third - physiopathology
Molars
Muscle function
Root resorption
Root Resorption - diagnostic imaging
Root Resorption - physiopathology
Teeth
Tooth, Impacted - diagnostic imaging
Tooth, Impacted - physiopathology
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Summary:Objectives This study aimed to assess whether awake bruxism and masticatory muscle activity could be related to external root resorption (ERR) in second molars adjacent to impacted mandibular third molars. Materials and methods Sixty patients, with requests for a cone-beam, computed tomography, were divided into two groups: ERR (patients with ERR in the second molar, n  = 30), and control group ( n  = 30). Awake bruxism was assessed through the Oral Behaviors Checklist (OBC) and an ecological momentary assessment (EMA). Surface electromyography (EMG) was used to assess the masseter and anterior temporal muscle function. Normality and homogeneity of variances were demonstrated. Descriptive analysis was performed, using the T-test and Chi-square test to compare the characteristics of the groups. A multiple regression model was performed. Results The ERR group presented more non-functional oral activities related to awake bruxism than the control group, according to OBC ( p  = 0.027) and EMA ( p  = 0.035). In addition, the ERR group had higher EMG activity than the control group in rest and isotonic protocols ( p  
ISSN:1436-3771
1432-6981
1436-3771
DOI:10.1007/s00784-024-05775-3