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Yale-New Haven Hospital, New Haven, Connecticut, USA HealthLINK: Pediatrics
January 26, 2001

News this month
Teething troubles come under suspicion

Teething certainly does
not look like fun for infants and toddlers. Beginning at only a few months of age, babies must endure super-sharp teeth cutting through reddened gums. For generations, parents and some doctors have associated teething with crankiness, fever, drooling and even diarrhea in young children. However, beginning about 30 years ago, scientific studies raised doubts there is any connection between teething and these symptoms in children. Yet the beliefs remain.

The study did not confirm the expected strong association between tooth eruption and a host of teething symptoms in children six to 30 months old.

Don't blame teething
The latest effort to disprove this association is a study published in the December 2000 issue of Pediatrics. An Australian research team studied 21 children six to 24 months old who attended three day care centers three days a week. To determine if teething was associated with fever, day care staff recorded the temperature of each child daily and examined the gums for signs of tooth eruption. Researchers also questioned parents and staff members independently about any symptoms a child displayed over the past 24 hours. Finally, they recorded parental beliefs and experiences about teething.

Data was collected pertaining to 90 teeth for 236 tooth days (the five days before a tooth began to erupt) and 895 nontooth days, or days that were more than 28 days away from eruption. The researchers found temperatures similar no matter whether a tooth was about to break through. Analysis was performed to compare reports of the following with tooth eruption:

  • mood
  • wellness/illness
  • drooling/dribbling
  • sleep
  • diarrhea
  • strong diapers
  • red cheeks
  • rashes/flush

Only parents–not day care staff members–reported an association with loose stools. And all parents involved in the study reported their own children had suffered a range of teething symptoms.

"Such beliefs might actually be harmful because they get in the way of optimal management of common illnesses and behavior…."

Time to change beliefs
The study did not confirm the expected strong association between tooth eruption and a host of teething symptoms in children six to 30 months old. These findings "contrast with strong parent and professional beliefs to the contrary," noted the lead researcher, Dr. Melissa Wake. Such beliefs might actually be harmful because they get in the way of optimal management of common illnesses and behavior in children. "It is time to relinquish our long-held cultural beliefs about teething… and to start to manage the issues of late infancy and toddlerhood more effectively," she wrote.

A substantial minority of parents believed that potentially serious symptoms, including convulsions, were due to teething.

Wake published an earlier study on parental beliefs on teething in 1999 in the Journal of Paediatric Child Health. A survey of parents at a health center in Melbourne showed that 91 of 92 parents believed teething caused symptoms. While most symptoms were minor and were more related to discomfort, a substantial minority still believed that potentially serious symptoms, including convulsions, were due to teething.

Cleveland study notes minor symptoms of teething
Last year, for a Cleveland Clinic study, 125 parents recorded their child’s temperature twice a day and noted whether any of 18 symptoms were present from the four-month well-child visit until the child turned one year old. Minor symptoms, such as drooling, irritability, mild temperature elevation and wakefulness, were all statistically associated with the days just before, during and after teething. More serious problems, however, such as congestion, stool looseness, high fever and cough, were not. However, the researchers noted that it was still not possible to notice a group of symptoms in a child and reliably predict a tooth was going to erupt. This study was reported in the April 2000 issue of Pediatrics.

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Greg Germain, MD

Teething can be a catch-all diagnosis

At the turn of the century, some 5 percent of all deaths in England were attributed to teething. I think we’ve moved beyond that, but the latest studies do little to clearly define symptoms associated with teething. Teething was and remains a catch-all diagnosis of sorts on the smallest of patients who, unfortunately, lack the ability to tell us what is really bothering them.

Even Dr. Spock says so
Babies whine, cry and drool; they don’t eat right and they wake up at night. For generations, parents have wondered why this is all happening and a logical explanation has been to blame it on teething. Dr. Spock gave support to this notion in his book, associating teething with crankiness, decrease in appetite and wakefulness. I must point out that he also associates teething with a lowered resistance to infection. There is no scientific evidence to support such a claim.

Even the American Academy of Pediatrics (AAP) does not provide clear information on this topic. In the AAP’s Caring for Your Baby and Your Child, it’s noted that teething can be the cause of low-grade fever, irritability, drooling, crying, bringing fingers to the mouth and pain. Yet another AAP publication, Guide to Your Child’s Symptoms, states that teething is not associated with fever or diarrhea but is a cause of fussiness and excessive drooling.

"…symptoms such as drooling and sleep disturbances represent normal developmental stages a child passes through rather than ‘problems’ caused by teething."

Finnish study agrees with Australian study
Then there is the first large study that was done in Finland in 1969 that found no association between teething and night waking. The current study is in agreement with this earlier one, noting that symptoms such as drooling and sleep disturbances represent normal developmental stages a child passes through rather than "problems" caused by teething.

Symptom management

But I can’t discount the fact that parents absolutely believe teething causes many of these symptoms. For the most part, there is no harm done in the ways parents try and comfort their babies. For example, it doesn’t hurt to offer a cool (not freezing!) teething ring to suck on, or let an infant chew on her fingers or even take a fussy infant out for a walk in the stroller. Even an occasional proper dose of a pain reliever won’t hurt.

Try not to let comfort measures interfere with your routine. For example, don’t start giving an 11-month-old baby a bottle again during the night because you may reinforce what may well be a problem behavior.

"…significant fevers that last more than 24 hours, a high fever in a young child, diarrhea…may require prompt medical evaluation. …"

Serious symptoms are not due to teething
The real danger comes when parents attribute more serious symptoms to teething. By this I mean significant fevers that last more than 24 hours, a high fever in a young child, diarrhea–significant symptoms that may require prompt medical evaluation rather than a scapegoat diagnosis of teething.

Setting healthy dental habits early
When teeth do come in–and that varies tremendously from child to child–experts agree that it’s a good time to establish healthy dental habits. Don’t put a baby down for a nap or to sleep with a bottle of milk, juice or other sweetened liquid. The sugars stay on the teeth while the baby sleeps and can do serious damage.

Clean the baby’s new teeth with a soft wet gauze, infant toothbrush or cloth. There’s no need to use toothpaste yet. Too much toothpaste is not good for an infant or toddler because they end up swallowing a significant amount of toothpaste, ingesting the fluoride, which can be poisonous at high doses. As more teeth come in, you can begin brushing with a soft brush and a pea-sized amount of fluoride-free toothpaste and gradually have your child take over the job of brushing. Avoid fluoridated toothpaste until four to six years of age, when children can spit out without swallowing a lot of toothpaste.

Parents of children over six months of age who have well water at home or are on ready-to-feed formula should talk to their pediatrician about fluoride supplementation. The first check-up with the dentist should be at age three, or sooner if problems arise.


Greg Germain, MD, is a pediatrician in private practice in New Haven and on the medical staff of Yale-New Haven Children’s Hospital.


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