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You’re constantly playing defense. Your child spends two minutes in the morning and two minutes at night carefully brushing and flossing with a fluoride toothpaste. You make sure sugary and acidic foods are not a major part of your diets. Your child visits our Dartmouth, MA office for regular exams and cleanings. Really, how can a cavity get past all that?

But even with the best defensive practices, you don’t have a level playing field—literally. The tops of our molars and premolars don’t have the smooth, easy-to-clean surfaces that our other teeth have. If you look at the chewing surfaces, you will notice deep grooves which toothbrush bristles have a much harder time reaching.  

Plaque and food particles can become trapped in these grooves (known as pits and fissures), providing perfect conditions for a cavity to develop. That is why cavities are so common in newly erupted molars. Dental sealants protect these teeth from cavities by providing a barrier which smooths out the surface of the tooth and prevents food and bacteria from reaching the molar’s crevices.

Most sealants are invisible plastic resin coatings which we apply in our Dartmouth, MA office. Usually the procedure is so quick and easy that no dental anesthetic is required. Each tooth will be examined first. If we find any signs of early decay, we will gently treat that area before beginning.

When the tooth is ready, it will be cleaned and dried. An etching solution will be brushed on to the dry surface to roughen the area a bit so that the sealant will hold to the tooth more effectively. A thin coat of the sealant is then painted on and hardened under a curing light. And that’s it!

Once teeth are sealed, they should be cleaned and flossed just as carefully as before. Regular exams and cleanings are still very important, and we can monitor the condition of the sealant and the sealed teeth. Properly applied, sealants can last from three to five years, or even longer.

Who should consider sealants? Sealants are typically recommended when the permanent molars first erupt. Children’s enamel takes a while to become its strongest, and so these just-erupted teeth are more at risk for cavities. Sometimes Dr. Ghenta will recommend sealants for primary (baby) teeth if needed. But even adults can benefit—talk to us if you are interested and we will let you know if sealants might be right for you.

Sealants are a simple, safe, and minimally invasive way to prevent cavities. Studies of sealed molars and premolars show a dramatic reduction in cavities compared to untreated teeth. Sealants are one of the most effective ways to defend your teeth or your children’s teeth from tooth decay. And as we’ve all heard—defense wins championships!

Many parents worry that their children’s teeth are not falling out on time. A lot of concerned parents want to know: When will my child lose his or her first baby tooth? At what age should the last tooth fall out? Is there a specific order in which the teeth are lost?

Dr. Ghenta and our team explain that a child's 20 baby teeth (primary teeth) typically come in by age three and begin to loosen and fall out on their own to make room for permanent teeth, which usually appear by the time your child is six. It is important to know that timing may vary, and girls typically lose their baby teeth earlier than boys. The last baby teeth will likely fall out by the time your child is 13.

So, which teeth do children lose first? Baby teeth tend to fall out in the order in which they came, which means the lower center incisors are usually the first to go when your child is between six and seven years old. The next teeth your child will lose are his or her top center pair, also called the upper central incisors.

It’s important to note that if a child loses a baby tooth early as a result of decay or an unforeseen accident, his or her permanent tooth may erupt early and potentially come in crooked due to limited space. If your child suffers an injury or has tooth decay, we encourage you to give us a call to set up an appointment with Dr. Ghenta.

While we know some children couldn’t be more excited to lose their baby teeth, we know others are anxious about this childhood milestone. When your child starts to lose teeth, our team at Ghenta Dental Group encourages you to stress the importance of proper dental care on a daily basis.

Remember to:

• Remind your child to brush his or her teeth at least twice a day. Supervise and offer assistance as needed.
• Help your child floss his or her teeth at bedtime.
• Limit eating and drinking between meals and at bedtime, especially sugary treats and drinks, such as candy and soda.
• Schedule regular dental visits for your child every six months.
• Ask about the use of fluoride treatments and dental sealants to help prevent tooth decay.

To learn more about baby teeth, or to schedule your child's next visit with Dr. Ghenta at our Dartmouth, MA office, please give us a call today!

While the last baby teeth generally aren’t lost until age ten or 11, most children stop believing in the tooth fairy by the time they're seven or eight. Of course, children are more than happy to play along with the game when there’s money at stake! While it is impossible to know what the tooth fairy does with all those teeth (are they labeled and stored like museum pieces in a giant fairytale castle?), it is possible to trace the history and myth of the tooth fairy to several cultures and traditions. Dr. Ghenta and our team learned about some interesting myths about the tooth fairy!

The Middle Ages

Legend has it that Europeans in the Middle Ages believed a witch could curse someone by using their teeth, so it was important to dispose of baby teeth correctly. Teeth were swallowed, buried, or burned. Sometimes baby teeth were even left for rodents to eat. Despite being pests, rodents were valued for their strong teeth; it was generally believed a tooth fed to a rodent would lead to the development of a healthy and strong adult tooth.

Eighteenth Century France

The tooth fairy myth began to show more characteristics of a conventional fairytale in 18^th century France. La Bonne Petite Souris, a bedtime story, tells the strange tale of a fairy that changes into a mouse to help a good queen defeat an evil king. The mouse secretly hides under the evil king’s pillow and defeats him by knocking out his teeth.

Scandinavian Lore

So, why does the tooth fairy leave money under the pillow? The idea of exchanging a tooth for coins originated in Scandinavia. Vikings paid children for a lost tooth. Teeth were worn on necklaces as good luck charms in battle. While the idea of exchanging a tooth for coins quickly spread throughout the rest of Europe, a fierce, horn-helmeted Viking is far cry from the image of a fairy collecting teeth.

While the tooth fairy as children know her today didn’t make an appearance until the 1900s, tooth myths and rites of passage have existed in numerous cultures since the dawn of time.

There is no substitution for a natural healthy tooth. Dental fillings are intended to replace tooth structure and restore a tooth damaged by decay (a cavity) back to its normal function and shape. Silver (amalgam) and tooth-colored (composite) fillings last a long time, though they can develop decay when the integrity is compromised by open margins, fracture, or recurrent decay. In this blog, we discuss the signs and symptoms that indicate your filling may need to be replaced in order to prevent further complications.

Amalgam fillings are made of an alloy (mixed metals) that expands and contracts. They have no bonding properties, and so to place an amalgam filling, the hole in the tooth may need to be larger. Because of these two factors, fractures frequently occur. There are three types of cracks that are commonly associated. Craze lines are superficial with no treatment needed. Fractures extend along other parts of the tooth and may require a filling replacement or crown. Cracks extend toward the root and can require a root canal and crown or, if too severe, extraction.

A filing needs to be sealed to the tooth. If the seal between the tooth and the filling breaks down, food debris and bacteria can seep down under the filling and cause recurrent decay. If the decay is treated early, replacing the filling is adequate. If not, a crown and even a root canal may be needed. The biggest mistake you can make is waiting to do something about a broken or unsealed filling until it is painful. Doing this will only make the treatment more involved and often times more expensive.

Regular dental exams and X-rays are used to evaluate dental fillings. You will not be able to tell on your own when your fillings start to fail. Just as a car mechanic will change the oil, correct your alignment, or change your tires, a dental checkup will help you identify small concerns to fix as you go in order to avoid a critical emergency.

Pay attention to any bite or temperature sensitivity in teeth that have fillings. This can be an indicator for some of the problems listed above. You know your teeth better than anyone. Your observations are most valuable when evaluating a filling for replacement. If replacement is needed, know you are doing what is best to prevent future dental calamities and make an appointment to see Dr. Ghenta.