Dubbed the "horror dentist" by the Dutch press, Mark van Nierop was detained in Canada last month and flown back to his native Netherlands where he was arrested under a Paris-issued international warrant.
"A judge has ruled that the Dutch dentist suspected of aggravated assault and fraud may be extradited to France," the Amsterdam regional court said in a statement.
Many of Van Nierop's 2,800 patients suffered disorders ranging from sepsis to broken jaws, according to a French victims' group.
The Amsterdam court ruled that Van Nierop's extradition was subject to an assurance that he would receive the same psychiatric treatment and would be detained in a psychiatric care facility.
"Should he be convicted in France he may be able to serve his sentence in the Netherlands," the court added.
Dutch prosecutors are also probing his claim that he killed his second wife in 2006, two years before he was persuaded by an investor to move to the remote rural area of Chateau-Chinon in central France.
But concerns soon started to mount as patients reported broken jaws, recurrent abscesses, septicaemia and healthy teeth being pulled out, French media reported.
Van Nierop has also been charged with fraud over claims he tried to rip off patients and insurance companies.
"He said he carried out 17 treatments on 17 different teeth for my wife in 10 minutes, and charged her for a tooth that had been pulled 10 years earlier," one local, Gerard Martin, told AFP in July.
A group of 120 French victims formed a collective to press charges, and a criminal investigation was opened in May 2013.
He was finally detained in the small town of Nackawic in the Canadian province of New Brunswick.