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Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

[Purpose] Present study aimed to evaluate the relationship between sleep bruxism and headache in school children. [Subjects and Methods] This study was conducted with 103 children aged 3-6 years. The exclusion criteria were early tooth loss, dental appliance was used, physical or psychological limitations, chronic disease and continuous medication. Sleep bruxism was diagnosed based on an indication by parents of the occurrence of teeth clenching/grinding and incisor/occlusal tooth wear, following the criteria of the American Academy of Sleep Medicine. Sleep quality was evaluated by a questionnarie, detailing the child's sleep characteristics. [Results] Forty-nine children (47.6%) were diagnosed with sleep bruxism. Those with sleep bruxism were 3.25-fold more likely to present headache. Children whose parents were separated had a significantly greater frequency of sleep bruxism and primary headache. The relative risk of exhibiting primary headache was 13.1 among children with sleep bruxism whose parents were separated. [Conclusion] Children with SB demonstrated a greater risk of having primary headache and those whose parents were separated had a greater chance of having headache. Only sleep bruxism was associated with headache, clenching the teeth during waking hours was not correlated with primary headache.
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PMID:The relationship between bruxism, sleep quality, and headaches in schoolchildren. 2920 Jun 17

Bruxism is an oral behavior that may lead to repetitive jaw-muscle activity characterized by clenching or grinding of the teeth and/or by bracing or thrusting of the mandible with 2 distinct circadian manifestations: sleep bruxism or awake bruxism. They share common risk factors and lead to similar consequences for the masticatory system but may have different etiology and pathophysiology. This oral behavior has been associated with tooth wear, masticatory muscle tenderness, headaches, and painful temporomandibular disorders. Available scientific evidence does not support the view that bruxism is a direct cause of pain, which should be taken into account when treating/managing patients.
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PMID:Sleep Bruxism and Pain. 3018 88

Treatment options for people experiencing temporomandibular disorders (pain and/or restricted movement in and around the jaw joint) include splints, which are removable appliances, often similar to a mouthguard. They are provided to patients to help ease pain in the mouth, face or jaws. They are also used to manage the symptoms of temporomandibular disorders, such as frequent headaches/migraines, clicking jaws, restricted mouth-opening or tooth wear from the grinding of teeth (bruxism). There are many types of splints. This research looked at the evidence addressing the primary question of whether or not splints work (regardless of type of splint) in reducing the pain associated with temporomandibular disorders and/or tooth wear, and if they offered value for money. Patients were involved in the research to ensure that the question and the outcomes that were measured were appropriate. A systematic review of the literature was undertaken to find all randomised controlled trials including patients with temporomandibular disorders or bruxism. Online databases of research publications were searched, and these searches were checked, to identify relevant trials. All stages of the review process were undertaken to the highest standards by two people, independently and in duplicate, using well-respected and recognised Cochrane methods. We conducted a value-for-money assessment, comparing the trial data with the costs of splints to see if splints are a cost-effective use of NHS funding. There was no evidence that splints reduced pain when compared with not wearing a splint or when compared with a minimal treatment (like jaw exercises, advice or education) in patients with temporomandibular disorders. The evidence was assessed as being of very low quality; therefore, it remains unclear whether or not splints are good value for money, or if they should be paid for by the NHS. This research showed that more well-conducted trials on temporomandibular disorder patients are needed.
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PMID:Oral splints for patients with temporomandibular disorders or bruxism: a systematic review and economic evaluation. 3206 9

Bruxism is a masticatory muscle activity characterized by grinding of the teeth and clenching of the jaw that causes tooth wear and breakage, temporomandibular joint disorders, muscle pain, and headache. Bruxism occurs in both adults and children. Clinical characteristics and habits were evaluated in an adult sample. Moreover, we used DNA samples from 349 adults and 151 children to determine the presence of association with specific genes. Genomic DNA was obtained from saliva. The markers rs2241145 and rs243832 (metalloproteinase 2 (MMP2)), rs13925 and rs2236416 (metalloproteinase 9 (MMP9)), and rs6269 (cathecol-o-methyltransferase (COMT)) were genotyped. Data were submitted to statistical analysis with a significance level of 0.05. In adults, in univariate logistic regression, presence of caries, attrition, and use of alcohol were increased in bruxism individuals (p < 0.05). In addition, in adults, there was an association between bruxism and MMP9 (rs13925, p = 0.0001) and bruxism and COMT (rs6269, p = 0.003). In children, a borderline association was observed for MMP9 (rs2236416, p = 0.08). When we performed multivariate logistic regression analyses in adults, the same clinical characteristics remained associated with bruxism, and orthodontic treatment was also associated, besides rs13925, in the AG genotype (p = 0.015, ORa: 3.40 (1.27-9.07)). For the first time, we provide statistical evidence that these genes are associate with bruxism.
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PMID:Bruxism Throughout the Lifespan and Variants in MMP2, MMP9 and COMT. 3247 Dec 13


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