Urinary catecholamine levels and bruxism in children

Area of Science:

• Pediatric dentistry
• Psychoneuroendocrinology
• Biochemistry

Background:

• Bruxism is a common parafunction in children.
• The link between emotional stress and bruxism requires further investigation.
• Urinary catecholamines are biochemical markers of stress.

Purpose of the Study:

• To investigate the association between emotional stress, indicated by urinary catecholamines, and the development of bruxism in children.
• To determine if specific catecholamines like epinephrine and dopamine are linked to bruxism.
• To explore the role of systemic and socio-economic factors in childhood bruxism.

Main Methods:

• A cohort of 314 children aged 6-8 years was assessed.
• Bruxism was diagnosed via clinical examination and interviews.
• Urinary catecholamine levels (epinephrine, dopamine) were quantified using high-performance liquid chromatography on 24-h urine samples.
• Logistic multiple-regression analysis was employed to assess variable associations.

Main Results:

• A significant association was found between epinephrine and dopamine levels and the presence of bruxism.
• 167 out of 273 children with complete urine samples showed evidence of bruxism.
• Emotional stress markers (epinephrine, dopamine) were strongly linked to bruxing behavior.

Conclusions:

• Emotional stress is a significant contributing factor to the development of bruxism in children.
• Urinary catecholamine levels, specifically epinephrine and dopamine, can serve as indicators of stress-related bruxism.
• Further research into the psychophysiological mechanisms underlying stress and bruxism is warranted.