If I'd known, I was paving the way To cavities, caps and decay, The murder of fillin's Injections and drillin's' I'd have thrown all me sherbet away

If I’d known, I was paving the way To cavities, caps and decay,
The murder of fillin’s Injections and drillin’s’
I’d have thrown all me sherbet away.
(a) How did the poet pave the way for cavities in her teeth?
(b) What is the meaning of sherbet?
© What had the poet not known?

(a) The poet cleared the way for cavities in her teeth by eating a large amount of sweets, gobs toppers, lollies, candies and by not brushing her teeth properly. ’ .
(b) Sherbet means sweets.
© The poet had not known that eating all kinds of sweets would result in tooth decay and she would need filings in her teeth.