He said vibrations caused by drilling for ordinary fillings could damage the nerve and cause root canal work later in life.

BBC: 'No need for dentist's drill'

So far Mr Hansen has treated nearly 600 patients needing root canal work with this method and claims he has achieved an almost 100% success rate.

BBC: 'No need for dentist's drill'

He said that although the work takes longer than traditional methods, it is cheaper as it eliminates the need to carry out costly root canal work and crowns.

BBC: 'No need for dentist's drill'

Arktos required root canal work and Walker an extraction.

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