The findings suggest only a third of carers are satisfied with their lives and a shocking 70% have high levels of depression or anxiety.
The man charged with murdering the pair in Glendene appeared at the High Court in Auckland.
The Accessibility for New Zealanders Bill had its first reading in Parliament on Tuesday afternoon.
The Onehunga site is the first of the council's centres to be operated by a Māori/Pasifika social enterprise with any profits to be invested into the community.
Dr Ashley Bloomfield said community water fluoridation benefited everyone, especially children, Māori, Pasifika, who were most vulnerable.