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Dogs need regular teeth brushing too.

The inside of a dog's mouth is teeming with bacteria.

When plaque buildup turns into tartar an overabundance of bacteria can lead to bad breath.

Kidney and liver failure can cause bad breath with a fishy smell.

+2 votes
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Dogs need regular teeth brushing too. The inside of a dog's mouth is teeming with bacteria. When plaque buildup turns into tartar an overabundance of bacteria can lead to bad breath. ... Kidney and liver failure can cause bad breath with a fishy smell.

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