When do babies start teething?

The arrival of a baby's first tooth is a big milestone, and for many parents, it's both exciting and a little daunting. Teething can be a difficult period – not just for little ones but for tired parents and carers too.  

At mydentist, we know how important it is to support families through every stage of their dental journey, starting from day one. So, if you've been wondering “when do babies start teething?”, we've got the answers you need.  

Join us as we talk with Ingrid Perry MBE, Oral Health Prevention Lead here at mydentist, to break down everything you need to know about teething – from the first signs and common symptoms to how to ease discomfort and keep your baby’s mouth healthy right from the start. 

When do babies start teething? 

“Teething can begin at any time between three and twelve months,” explains Ingrid Perry MBE, Oral Health Prevention Lead at mydentist. “Most babies will cut their first tooth around the six-month mark, and the lower central incisors – the bottom front teeth – are usually the first to come through, followed by the upper front teeth. 

By the time your child is around three years old, they’ll typically have a full set of 20 primary teeth, often referred to as milk teeth. These will eventually be replaced by their adult teeth as they grow. 

It’s important to remember that every baby is different. The timing of teething doesn’t reflect anything about your baby’s development. Some little ones are even born with a tooth – known as a natal tooth – while others don’t start teething until after their first birthday. Both are perfectly normal.” 

What are the signs of teething? 

Not all babies show obvious signs, but many do experience some discomfort as their teeth begin to push through the gums. Common signs of teething include: 

• Excessive dribbling – often soaking through bibs and clothing 

• Red, swollen gums – which may be tender to the touch 

• Chewing and biting – on hands, toys, or anything they can reach 

• Fussiness or irritability – especially around naps or feeding times 

• Disrupted sleep – due to soreness or general discomfort 

• Flushed cheeks – often on just one side 

• A slightly raised temperature – but not a high fever 

It’s a common myth that teething causes high fevers, diarrhoea or rashes. While teething can lower your baby’s resistance slightly, these symptoms usually indicate an unrelated illness. If your baby has a high temperature (over 38°C), prolonged diarrhoea or seems unusually unwell, it’s best to contact your GP or health visitor. 

How can I help soothe my teething baby? 

“Watching your baby cope with sore gums can be upsetting, but there are some really simple ways to help ease their discomfort,” says Ingrid Perry MBE, Oral Health Prevention Lead at mydentist. 

“A firm rubber or silicone teether is often really effective, especially if it’s been cooled in the fridge – just don’t freeze it, as that can make it too hard and potentially harm the gums. You can also try a chilled, damp flannel or even a cold spoon, always under supervision. 

Another option is a gentle gum massage – just use a clean finger to apply light pressure. And sometimes, it’s as simple as extra cuddles and reassurance. A calm, loving environment can go a long way when your baby is feeling unsettled. 

If your little one is really struggling, your pharmacist can recommend sugar-free teething gels or age-appropriate pain relief like paracetamol or ibuprofen – as long as your baby is over three months old and you follow the correct dosage.” 

When should my baby see the dentist? 

“We recommend bringing your baby for their first dental check-up by the age of one, or within six months of their first tooth coming through – whichever comes first,” says Ingrid Perry MBE, Oral Health Prevention Lead at mydentist. 

“These early visits are really valuable. They help your little one get used to the sights and sounds of the dental practice and give parents a great opportunity to ask questions or raise any concerns about brushing, feeding, or fluoride use. 

During the appointment, your dentist will check your baby’s gums, teeth and jaw development, and offer personalised advice to support their oral health as they grow. It’s a small step that makes a big difference in building healthy habits for life.” 

What comes after teething?  

It's undeniable that teething is tough. But remember, it's also temporary. A good oral health routine, however, is for life! At mydentist, we’re here to support families every step of the way – from those very first teeth to a confident, healthy smile for life. We encourage parents and carers to help their children create good oral health habits in their early years, to prepare them for the future. If you're a parent or carer who'd like support with understanding and caring for your child's oral health, you can find free Kids Club resources on the mydentist website.   

If you're interested in learning more from Ingrid, read all about how she was inspired to pursue oral health education for children on the mydentist blog.