Black staining of the teeth in children and adolescents does not cause pain or serious illness, but it can be socially
debilitating for esthetic reasons. Black staining is easily removed through periodic professional mechanical tooth cleaning
and ultrasonic scaling, but it can easily recur within few months. Using essential oil-containing mouth rinses diluted at
50% twice per day could prevent the black staining from returning after it is removed, reducing the need for mechanical
treatments and improving esthetics.