Bruxismo infantil
: uma revisão sistemática

  • Filipa Isabel dos Santos Espingarda (Student)

Student thesis: Master's Thesis


Introduction: According to the most recent definition, bruxism is considered a repetitive activity of the masticatory muscles, which can occur at night, sleep bruxism, or during the day, wakefulness bruxism. The new proposed definition is characterized by clenching and grinding of the teeth and/or pushing or clenching of the jaw, reinforcing it as a muscular movement that does not necessarily imply interdental contact. The prevalence of bruxism is higher in the younger population. Between the ages of 8 and 12, and in some cases at earlier ages, the prevalence of bruxism is nearly 40% of the general population. The etiology of sleep-wake bruxism is multifactorial and thus it is difficult to identify the disorder. The difficulty in defining the etiological factors requires a detailed study of its pathophysiology. Besides this aspect, there is still no consensus regarding the most effective therapies. The dentist has a great importance in identifying and providing treatments that lead to the cessation of the habit. Their objectives are to prevent progressive dental wear and tear, reduce or eliminate pain and the onset of temporomandibular dysfunctions. This systematic review aims to determine and/or highlight the etiology and treatment associated with bruxism in children and, consequently, to guide dentists to better identify and treat bruxism in children. Materials and Methods: A systematic review was carried out based on the PRISMA guidelines, using several databases such as PubMed/MEDLINE®, Embase and ProQuest, from January to March 2022. The search strategy was limited to children up to 12 years old, with no time limit, and studies in Portuguese and English languages. Two investigators performed the selection of studies independently. The quality of the studies was assessed using the Newcastle-Ottawa scale. Results: Through the search 89 articles were identified. After duplicates and triplicates were eliminated, the title and abstract were analyzed, leaving 32 for full reading, in assessing eligibility. were included. A total of 4 studies in the qualitative analysis of this systematic review. Conclusion: Considering the results obtained, the treatment option with the most evidence is the use of occlusal splint. Alternatives were identified with photobiomodulation and physical therapy. According to this study, there are still an insufficient number of clinical studies in this age group.
Date of Award20 Jul 2022
Original languagePortuguese
Awarding Institution
  • Universidade Católica Portuguesa
SupervisorPatrícia Nunes Correia (Supervisor) & Patrícia Fonseca (Co-Supervisor)


  • Bruxism
  • Children
  • Risk factors
  • Diagnosis
  • Treatment


  • Mestrado em Medicina Dentária

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