Most babies use teethers from around 4 to 7 months old, when the first teeth start pushing through, and may continue using them until age 2 to 3, when the last set of molars finishes coming in. That’s a wider window than many parents expect, because teething isn’t one event but a rolling process that plays out over roughly two years.
When Babies Start Using Teethers
Teething symptoms often appear before you can see any teeth. Babies typically start showing signs of gum discomfort between 4 and 7 months, even though the first teeth (the lower front incisors) usually break through between 6 and 10 months. That early discomfort is when most parents introduce a teether for the first time.
You’ll notice your baby gnawing on fingers, toys, or anything within reach. Increased drooling, fussiness, and disrupted sleep are common signals that a teether would help. Some babies show these signs as early as 3 months, though actual tooth eruption that early is uncommon.
The Full Teething Timeline
The first teeth to arrive are the lower central incisors, typically between 6 and 10 months. The upper central incisors follow between 8 and 12 months. From there, teeth continue erupting in waves: lateral incisors, first molars, canines, and finally the second molars.
Those second molars are the last to arrive, and they take a while. Lower second molars typically emerge between 23 and 31 months, and upper second molars between 25 and 33 months. Each new wave of eruption can bring a fresh round of gum soreness, which means teethers stay useful far longer than the infant stage.
Why Toddlers Still Need Teethers
Many parents put teethers away after the front teeth come in, then find themselves reaching for them again around 13 months when the first molars start pushing through. Molar eruption can be particularly painful because molars are broader and have to break through more gum tissue. Not all teethers are designed to reach those back gums, so look for options with extended shapes or multiple textures that let a toddler chew comfortably on the sides of their mouth.
Some teethers are specifically built for multiple stages. Designs with varied textures and bristle-like surfaces give babies and toddlers different chewing options depending on which teeth are currently erupting. A teether that worked well for front teeth at 6 months may not be the right shape for molars at 18 months.
When Kids Outgrow Teethers
There’s no firm cutoff age. Most children naturally lose interest in teethers once the second molars have fully come through, which happens for most kids by around age 3. Some children stop reaching for teethers well before that, especially if their later teeth come in with less discomfort. Others use them intermittently, only during active eruption phases.
If your child seems to chew on teethers or other objects well past the end of teething, it could simply be a sensory habit rather than pain relief. At that point, transitioning to other chewing options or redirecting the behavior is reasonable.
Choosing a Safe Teether
The FDA and the American Academy of Pediatrics both recommend firm rubber teethers over liquid-filled ones. Liquid-filled teethers can break and leak, and frozen teethers of any kind can be hard enough to bruise tender gums. A chilled teether from the refrigerator (not the freezer) is the safest approach.
Teething jewelry, including amber teething necklaces, poses serious risks. The FDA has received reports of infant deaths and serious injuries from strangulation and choking caused by these products. Regardless of marketing claims, necklaces and bracelets are not safe alternatives to a handheld teether.
Always supervise your baby while they’re using a teether to prevent choking, and inspect teethers regularly for signs of wear or damage.
Keeping Teethers Clean
Silicone and rubber teethers should be washed with mild soap and warm water after each use. A soft brush helps clean textured areas where saliva and food particles collect. Rubber teethers can be boiled briefly for deeper sterilization, but check the manufacturer’s guidance first, since repeated boiling can degrade some materials. Avoid putting rubber teethers in the dishwasher, as the high heat can break them down. Silicone teethers tend to be more heat-resistant, but hand washing is still the gentlest option for daily cleaning.
Other Ways to Soothe Sore Gums
A teether isn’t the only tool in your kit. Rubbing your baby’s gums with a clean finger or damp gauze for about two minutes can ease discomfort through simple pressure. You can do this as often as needed throughout the day.
Chilled washcloths and pacifiers from the refrigerator also work well. For children older than 12 months, a piece of chilled soft fruit like banana or berries placed in a mesh feeder gives them something to gnaw on while introducing new flavors. Avoid hard foods that could be a choking hazard, and skip ice or frozen pops, which can cause frostbite on delicate gum tissue. Whatever you offer, don’t dip it in sugar or honey, as that sets the stage for early cavities on those brand-new teeth.