Elemental Composition of Betel Leaves Using a Novel Optical Spectroscopic Technique.

It is widely accepted that the consumption of betel quid causes various changes in the oral mucosa including oral potentially malignant disorders (OPMDs) and oral cancer. It is important to analyze each component of betel quid to understand the disease progression. Copper is found to be relatively higher in betel leaves, and it is known that the role of copper-induced fibrogenesis using the lysyl oxidase pathway in OPMDs.