Our Blog

Probably because, for many kids, molars do get more cavities. So let’s answer two better questions: Why do molars get more cavities? And, how can we help prevent them?

It’s the Pits. (And Fissures.)

The reason molars are so useful—and more likely to develop cavities—is because of their shape. Unlike our front teeth, which are used to bite through foods, molars are used to grind and chew. That’s why they are so much larger, with a flat surface on top. Well, not exactly flat.

When you look at a molar, you’ll notice that the top isn’t really smooth at all. It’s covered with little indentations known as pits and longer grooves called fissures. These irregular features both trap food particles and make it more difficult for bristles to clean them away. Cavities in molar surfaces are so common that they even have a specific name: “pit and fissure cavities.”

But molar biology does not mean tooth decay is inevitable! There are steps you can take to protect your children’s molars as they grow, while you’re providing them with dental strategies that will keep their adult molars healthy and cavity-free.

Preventing Pit and Fissure Cavities

• Don’t Just Brush—Brush Effectively

The first step in preventing any kind of cavity is brushing properly. Your child should be brushing at least two minutes, at least twice each day. And while the time we spend brushing is important, technique is also key.

When you’re showing your child how to brush, be sure that the tops of molars, upper and lower, get brushed thoroughly, with special emphasis on cleaning pits and fissures. Make sure the toothbrush is small enough to fit your child’s mouth comfortably and reach all the tooth surfaces. Replace worn-down brushes or electric toothbrush heads after three to four months when they no longer clean as effectively.

Your child will probably need adult supervision from toddler years through the early years of grade school to learn how to brush properly. This is time well spent, as your child learns cavity-preventing brushing techniques which will last a lifetime.

• Eat a Tooth-Healthy Diet

Plaque bacteria use the sugars in our food to make acids. These acids break down the mineral strength of tooth enamel and eventually lead to cavities. And because pits and fissures are great hiding places for bacteria and food particles (especially sticky ones), molars are even more at risk for cavities. Limiting sugary, sticky foods like sweet treats and simple carbs helps reduce that risk.

Acidic foods like flavored juices, sour candies, sodas, and power drinks also weaken enamel and can leave teeth more vulnerable to decay. Help your child avoid cavities by limiting acidic foods and drinks, making them part of a balanced meal, and/or rinsing with water after eating.

• Use Fluoride Toothpaste

Fluoride toothpaste not only reduces the risk of cavities, it also helps strengthen enamel that has been weakened by bacterial and dietary acids. Win-win!

• Ask About Sealants

Sealants are invisible, safe coatings which protect molars by preventing food and bacteria from getting trapped in their uneven surfaces. The top of the molar is first treated with an etching solution to allow the sealant to bond tightly to the tooth, a thin coat of sealant is painted on, and then it’s hardened under a curing light. That’s all there is to it.

Sealants are often recommended when children’s permanent molars first erupt, when they are especially at risk for cavities. Sealants can last from three to five years (or even longer), and studies have shown a dramatic reduction in cavities for patients who use sealants compared to patients with untreated teeth. Depending on your child’s individual needs, Drs. Sidney and Jacob Kelly might recommend a sealant for baby molars as well.

• Regular Exams and Cleanings

It might be hard for you to tell if your child’s molars have been affected by sticky plaque, or sugary foods, or acidic drinks, or inadequate brushing, or any other potential cavity-causers. It’s not a difficult job for Drs. Sidney and Jacob Kelly, though! Through regular checkups and cleanings at our Roseville, CA office, we will discover any conditions that might lead to cavities, and, if necessary, treat small cavities before they lead to more serious decay.

Statistically, childhood molars have a greater chance of developing cavities than incisors and canines. Help your child beat the odds by understanding why these teeth are at risk and by working with your dental team to give your child years of healthy teeth now and a future filled with beautiful smiles!

A dental crown is often called a “cap.” A dental crown covers all of the visible parts of the tooth and has many functions and reasons for placement.

There are several different types of crowns available at Sidney D. Kelly, DMD Family and Cosmetic Dentistry. They vary in their material, appearance, and functionality. A PFM, or porcelain fused to high-noble metal, is the most common. A full cast, high noble metal crown is a gold crown, and a stainless-steel crown is meant to be temporary. The most natural-looking crown is one that is all porcelain. These are often used for front teeth.

Getting a crown typically requires two appointments. The first is a preparation with impressions, shaping, and placing a temporary. The impressions are either sent to a dental lab, where the process generally takes two weeks, or done in-office with a machine that can make a crown without needing a second appointment. These crowns are made from a high-quality solid block of porcelain. The shape of the tooth is constructed from a digital 3D image of your tooth.

To accurately determine which type of crown is best, you must first know why you need the crown and in what area of your mouth is it needed, which can be answered when you visit us at Sidney D. Kelly, DMD Family and Cosmetic Dentistry. For instance, if you have a gold crown on the lower right and need a new crown directly above on the upper right, the best durability and long-lasting relationship is another gold crown.

If you need a crown on a front tooth, a gold crown may not be the best choice. A PFM has strength but is not ideal, as a dark line will appear at the gum line. A full porcelain crown is going to look as close to a natural tooth as possible, but will have less strength than a gold crown.

There are two types of porcelain crowns, depending on how they are made. A dental lab makes a full porcelain crown by baking layer upon layer to make the porcelain look like natural enamel. A full porcelain crown made in-office out of a solid piece of porcelain will have increased strength. However, the natural layered appearance is extremely difficult to achieve.

A crown is placed on a tooth when added strength is needed. Cracks, large broken-down fillings, or previous root canal treatment are all conditions where a crown is the standard care. The type of crown that is most appropriate depends greatly on location.

Your smile is in the spotlight every day, helping you greet the world with confidence! But when you’re self-conscious about discolored spots on your teeth, it’s time to get some professional advice to deal with these troublesome tints.

Discolored patches, both dark and light, can develop for a number of different reasons. Some markings are cosmetic only, and some spots require treatment. Some can be removed with a professional cleaning, and some might require more serious restoration. Let’s have a look at some of the common causes of enamel discoloration.

• Cavities

Decayed enamel can appear as a brown spot on the tooth. A dark edge around a filling might mean decay underneath.

Regular checkups at our Roseville, CA office will help catch small cavities before they become big ones. If you need a filling, the filling color can be matched to your tooth color for an undetectable restoration.

• Demineralization

Bacteria in plaque produce acids, which attack our teeth. These acids erode minerals such as calcium and phosphorus from enamel, leaving a weak spot that is vulnerable to decay. This process is called “demineralization,” and often leaves a whiter spot on a tooth where minerals have leached away. Common reasons for demineralization are neglecting dental hygiene, failure to clean around braces, and a diet filled with sugary and acidic foods.

Fluoride and enamel-strengthening toothpastes, a healthy saliva flow, and a balanced diet help our teeth “remineralize,” bathing teeth in minerals that can help replace those that have been lost. But if you have lingering white spots due to demineralization, Drs. Sidney and Jacob Kelly can provide some options, including whitening, microabrasion, and veneers.

• Fluorosis

Fluorosis is a cosmetic condition caused by exposure to too much fluoride while the permanent teeth are still forming (generally, during the years before a child’s eighth birthday). Small white spots and patches are a common result of mild fluorosis. In more serious cases, teeth can be pitted and stained with brown, gray, or black spots.

Preventing fluorosis begins in early childhood. Talk to Drs. Sidney and Jacob Kelly about fluoride levels in local tap water if you have any concerns. Use only the recommended amount of toothpaste (the size of a grain of rice for children three and under; the size of a pea for children three to six), and show your child how to spit out toothpaste and rinse after brushing. Keep fluoride toothpastes and other fluoride products out of the reach of young children. Don’t give children fluoride supplements or fluoride rinses without discussing it with Drs. Sidney and Jacob Kelly.

If your own teeth have been affected by fluorosis, talk to us. Again, this is a cosmetic condition affecting otherwise healthy teeth. Whitening treatments can be helpful in mild cases, microabrasion has been effective for mild to moderate cases, and, for severe cases, cosmetic restorations such as bonding and veneers are an option.

• Tartar

Are you seeing an accumulation of dark brown spots and stains on your teeth, especially between the teeth and at the gum line? This might mean that you have tartar buildup. When you brush plaque away every day, your enamel stays smooth and clear. But when plaque builds up over time, it hardens and becomes tartar.

How hard is tartar? So hard that it can only be removed with a professional cleaning. Eliminate this source of spots and staining with twice daily brushing and daily flossing, and make sure regular professional cleanings are on your calendar.

• Other Causes

Medications taken while teeth were developing (notably, antibiotics in the tetracycline family) can cause discoloration. Medical conditions such as celiac disease and enamel hypoplasia can affect both tooth color and enamel formation.

Cosmetic treatment and restorations can help with discoloration caused by medications, and restorations such as bonding, veneers, and crowns can restore tooth appearance and function when medical conditions cause imperfections in enamel color and structure.

If you’re unhappy with the overall whiteness of your smile, a professional whitening might be just what you’re looking for. If specific patches, streaks, and spots of a different color are dimming your bright smile, it’s time for an exam. Drs. Sidney and Jacob Kelly will be able to tell you the reason for any discolored enamel as well as present you with all your treatment options. Put the spotlight back where it belongs—on your healthy, confidant smile!

Fluoride is a mineral that plays an essential role in oral health. In fact, the significant reduction in American tooth decay in recent decades can be attributed to a greater availability of fluoride in public water supplies, toothpaste, and other resources. When it comes in contact with the teeth, fluoride helps protect the enamel from acid and plaque bacteria. In some cases, it can even reverse tooth decay in its earliest stages.

Despite the benefits of fluoride, tooth decay is still common, especially among teenagers. The Centers for Disease Control reports that cavities can be found in more than half of young teens and two-thirds of older teens over age 16. Many of those teens are deficient in fluoride, either due to a lack of public water fluoridation or the use of bottled water. So how can parents ensure their teens are getting the fluoride they need to facilitate strong, healthy teeth?

Monitor Fluoride Exposure

Drs. Sidney and Jacob Kelly and our team at Sidney D. Kelly, DMD Family and Cosmetic Dentistry recommend you start by measuring your teen’s fluoride exposure. Make sure you purchase fluoridated toothpaste for your household, and find out if your tap water is fluoridated. If your teen primarily consumes bottled water, examine the bottle to determine whether fluoride has been added. The majority of bottled waters are not supplemented with fluoride, but those that are will be clearly labeled.

Fluoride Supplementation

Drs. Sidney and Jacob Kelly may recommend topical fluoride treatments at routine dental exams. These treatments are painless for your teen and may help establish stronger enamel that is more resistant to plaque and tooth decay. If you have a public water supply that is non-fluoridated, we may recommend fluoride supplementation between visits. These can be administered as drops, tablets, or vitamins.

Keep in mind that fluoride is most important for children and teens under the age of 16. Be proactive about your teen’s oral health by speaking with us about your family’s fluoride needs at your next dental visit.

For more information about fluoride, or to schedule an appointment with Drs. Sidney and Jacob Kelly, please give us a call at our convenient Roseville, CA office!