He said oral health was an important issue in Rotorua, as the district had one of the poorest oral health indicators for children in New Zealand.
Rotorua district councillors last month reversed a decision to go ahead with a binding public referendum on the controversial issue, meaning Rotorua's water will remain fluoride-free.
"This is a report every councillor should read," Dr de Wet said.
"I hope the Rotorua council will reconsider the issue in light of this report."
Fluoride Free New Zealand's Rotorua spokesman, Alan Solomon, said while he hadn't read the review yet, he wasn't convinced.
"Regardless of the studies that suggest fluoride is not a poison, there are just as many that say it is," he said.
Mr Solomon said there were a number of alternatives to fluoridation, including education and offering free dental centre for children and teens up to the age of 17.
Sir David said the review included an extensive evaluation by a panel of five experts, as well as one lay observer with local body experience.
According to the report, the only side effect of fluoridation at the levels used in New Zealand was mild dental fluorosis. This was found to be as common in non-fluoridated areas as it was in fluoridated areas, the report said.