Question

What are the 'perils' that the narrator has spotted in her teeth ? What had caused them ?

Answer 1

The 'perils' referred to here by the poet/narrator are the caries in her molars. She had not taken good care of her teeth; she ate lots of candies, toffees, sticky food, lollies, etc. She did not brush her teeth regularly and properly. All this neglect led to many tooth-decay problems. She had to go to the dentist for fillings and painful dental treatment.  

Answer 2

This perils here refers to caries in her molars. As in early childhood she didn't took care of her teeth. She ate many lollies , Toffies which now cause severe tooth decay.

Now she had to meet a dentist in order to complete her filling...

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