A Portland City Club research committee has recommended voters approve a fluoridation proposal on the ballot in May. Eleven members voted in favor of the recommendation, one against.
Kristina Holm, the lead writer for the majority, said the evidence convinces members the planned fluoridation dose, .7 parts per million, carries no proven adverse health effects.
"I think the majority believe we owe it to the community to improve overall dental health," Holm said.
Michael Crean, who wrote the minority report, said some members had reservations about a lack of informed consent for mass fluoride dosage.
"If you take a look at a toothpaste tube the warnings are very clear," Crean says, "You don't want to ingest this."
The City Club's research director says Sam Adams, the former Portland Mayor who's now the Club President, had no involvement in the committee or the report, and recused himself from related discussions.
An earlier version of this story incorrectly stated the vote of a Portland City Club committee deciding whether to recommend a fluoridation measure. The committee vote was 11 to 1. OPB regrets the error.
This story originally appeared on Oregon Public Broadcasting.