Masterton District councillor Gary Caffell is challenging the council's approach to the fluoride issue.
Mr Caffell said it was important not to "brush aside" those against fluoride without examining the facts.
"When the anti-fluoride people start throwing things around like cancer, while I remain unconvinced by that, we have to listen and this is an issue which the community has to have a say in," he said.
He would like the community to have the opportunity to decide whether there is a need for a referendum.
"As individual councillors, we don't have the knowledge for us to make that decision.