The key ring of plastic doodads she assembled for her 1-year-old, Talia, to teethe on.
From the cnn.com
Flora flops over the front of the swing, trying to teethe on the metal bar.
From the guardian.co.uk
They didn't have anything for them to teethe on and play with.
From the omaha.com
Dogs are just like babies with an obvious oral fixation, They teethe and try to put everything in their mouths.
From the abcnews.go.com
Of primary concern are small children, who have been known to teethe on painted woodwork, such as window sills.
From the latimes.com
More examples
Grow teeth; cut the baby teeth; "The little one is teething now"
(teething) the eruption through the gums of baby teeth
Teething is the process by which an infant's teeth sequentially appear by breaking through the gums. Teething may start as early as three months or as late, in some cases, as twelve months. The typical time frame for new teeth to appear is somewhere between six and nine months. ...
(Teething) The entire process which results in the eruption of the teeth. Nineteenth-century medical reports stated that infants were more prone to disease at the time of teething. Symptoms were restlessness, fretfulness, convulsions, diarrhea, and painful and swollen gums. ...
(Teething) The process of teeth formation which usually occurs within the first year. Teeth form under the gums and are pushed out over time. Usually the bottom front teeth are the first teeth to appear.
(Teething) This is a natural stage in a baby's life in which the first set of teeth (milk teeth) break through the gums. This process is characterised by a range of symptoms such as pain, dribbling, slight fever and chewing.
(Teething) This means the "cutting teeth" in infants which does not cause death. However, infections or malnutrition do result and could be the cause of death.