Premature Gray Hair Development in the Interbrow Region Due to Loss of Maxillary First Molars in Young Mice

The study found that young mice with extracted maxillary first molars developed premature gray hair in the interbrow region, linked to increased noradrenaline levels and stress-induced sympathetic nervous system activation. This suggests a connection between loss of masticatory function and localized gray hair growth. Improving masticatory function might reduce gray hair occurrence, offering insights for dental clinicians. Further research is needed to understand the role of trigeminal nerve endings and autonomic nerve activation in this process.