New research suggests that older women experience more pain due to gender-specific changes in brain regions associated with pain perception brought about by ageing.
Unable to renew, our teeth become brittle, and prone to fracture as dentine loses its spring. This is more common in teeth with existing crack lines, large fillings or root canal treatments. With time, the outer surface of enamel thins to reveal the relatively opaque dentine that darkens as we age. The dentine darkens because the collagen weave stiffens and shrinks, and the fluid in the tubules fills with minerals.