Our Blog

What is a crown?

June 18th, 2025

If you have never had a crown before, you might be wondering why crown treatment is best, what the procedure involves, and which type of crown to choose. Let’s get down to the basics of crowns!

A crown is the best way to treat many dental conditions, either to strengthen and save the tooth or to improve its appearance. We might suggest a crown if you have any of the following conditions:

  • A filling that needs to be replaced, without enough tooth structure left to fill properly
  • A tooth that is fractured or broken, or so weak that it might fracture
  • A recent root canal
  • An implant
  • A bridge which needs a crown to serve as the base for attachment
  • A tooth that is discolored or irregularly shaped

On your first visit to our Dallas office, Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani will prepare the tooth that will be receiving a crown. A tooth might have to be built up if there isn’t enough of the original tooth left, or the top and sides of the tooth will be shaped down so that the crown fits smoothly and evenly with your other teeth. An impression will be made and sent to a dental lab so that a crown with the perfect fit for your tooth and mouth can be created. A temporary crown will be put in place to protect your tooth while the final crown is fabricated.

 The permanent crown is a cap which covers your tooth. It can be made of various materials, which all offer different advantages:

  • Metal Crowns—made of gold, platinum or base metal alloys, these are the longest lasting. Because of their metallic color, they are often chosen for back molars where they are less visible.
  • Porcelain Over Metal—because the color of the porcelain is matched to your natural teeth, these crowns look very realistic. Porcelain is more fragile than metal, so there is the possibility that they won’t be as durable.
  • Resin—less expensive than other options, but these crowns are more fragile and do not wear as well.
  • All Porcelain/All Ceramic—the most realistic looking option, especially for front teeth, and also suitable for anyone with a metal allergy. They are, again, not as strong as metal crowns, and can be subject to damage.
  • Stainless Steel—often used for baby teeth or as a temporary crown for adult teeth.

We’ll discuss your options and help you decide on the best type of crown for you. When the crown is finished at the dental lab, you will have one more visit where the crown will be secured in place. We will make sure your bite is comfortable and the color and appearance of the crown are satisfactory. We will also give you instructions for the next few days following the procedure, and can make adjustments if needed.

A crown is a perfect example of form and function working together: a crown maintains the beauty of your smile and preserves the health of your tooth. If you need a crown, we will be happy to talk to you about your best options for a strong, long-lasting, and natural smile.

Sippy Cups

June 12th, 2025

What a milestone! The transition from bottle to sippy cup is one of baby’s first steps toward toddler independence. And like all first journeys, some helpful guideposts come in handy. That’s why Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani and our team have several recommendations to help you navigate this transition, making sure your baby’s dental health is protected along the way.

Choosing a Sippy Cup

Sippy cups are often a parent’s first choice for this big step in baby’s development. While sippy cups offer a variety of child-safe materials, lively colors, and comfortable handle options, the feature of interest from a dental perspective is lid design.

Sippy cups curb spills because their lids don’t allow liquids to flow out freely, ensuring that drinks make it into baby’s mouth instead of onto furniture or floor. Cup lids might incorporate:

  • Built-in straws
  • A drinking edge around the rim of the cup which seals when your child isn’t drinking
  • Soft spouts
  • Hard spouts
  • Spouts with valves to prevent liquids from leaking out. (Spouts with valves work like a nipple, which means baby is sucking instead of sipping.)

Which design is best? For short periods, any of these designs can work for you. Over long periods, spouted cups could have the same effects as prolonged thumb-sucking and pacifier use, potentially affecting a child’s tongue positioning, tooth alignment, bite, and speech development. Your dentist will be able to suggest which cups are best for your child’s dental health both short and long term.

What to Put in a Sippy Cup

Once your baby has begun drinking from a cup, it should only hold tooth-friendly drinks.

  • Pediatricians generally recommend breast milk and/or formula until your child is 12 months old. You can switch to regular milk (or a healthy milk alternative) once your child is a year old with your doctor’s okay.
  • Water can be introduced when your pediatrician thinks your child is ready, usually around the age of six months.
  • Because even natural fruit juices have lots of sugar, dentists and pediatricians suggest giving your baby small amounts only—or feed your child fruit instead!
  • Skip the sugared drinks, sports drinks, caffeinated drinks, and sodas. They aren’t healthy for little bodies or little teeth.

Help Prevent Tooth Decay

Just like adults, babies can suffer tooth decay, too—and for the same reasons. The bacteria in plaque use the sugars found in our diets to create acids, and acids erode tooth enamel.

When a toddler totes a sippy cup around all day, even filled with healthy drinks, those baby teeth are constantly exposed to the natural sugars found in breast milk, formula, and, for older children, milk. Drinks with more or added sugars, such as juices or sweetened drinks, cause more damage to tooth enamel. Use a sippy cup wisely:

  • Offer the cup with meals and snacks, when increased saliva production can help wash away sugars and neutralize the acids which cause cavities.
  • Offer water between meals.
  • Don’t let your baby take a sippy cup to bed. Some spill-proof cups are designed to be sucked like bottles, and, like bottles, sugary liquids can pool in babies’ mouths as they sleep.
  • Get into a tooth-cleaning routine as soon as your child’s teeth start to arrive.

And, while we’re talking about healthy teeth, please don’t let your child toddle around with a sippy cup. A fall while drinking can injure a baby’s mouth and teeth.

Partner with Your Child’s Dentist

The journey from baby to toddler can seem overwhelming sometimes for both you and your child, but you have expert help available! It's a good idea to make a first dental appointment at our Dallas office sometime between the appearance of the first baby tooth and your child’s first birthday. This initial visit is an opportunity for Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani to:

  • Check your child’s overall dental health and development.
  • Look for signs of early decay.
  • Talk about proactive dental care, including how and when to clean your child’s teeth.
  • Answer questions about how you can support your child’s dental health, including the advantages and disadvantages of sippy cups.

Used properly, sippy cups can be a helpful transition on your child’s journey from bottle to cup, and from baby-who-relies-on-you-for-everything to take-charge-toddler. Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani and our team are an ideal guide as you and your child chart this path together.

Preventing Toddler Tooth Decay

June 4th, 2025

You do everything you can to protect your toddler with safeguards large and small. Installing that complicated car seat. Figuring out which sunscreen is best for delicate skin. Spending weeks childproofing your home. But all the work protecting your child is more than worth it because the rewards are so great. And one more everyday precaution that brings great rewards is protecting your toddler from tooth decay.

  • Start Early

The time to start your baby’s dental care is even before that first tooth arrives. Carefully wiping the gums with a clean, damp cloth after feeding gets your child used to the idea of brushing and removes bacteria that might irritate the gums as the teeth begin to erupt. As soon as those teeth arrive, gentle brushing with soft bristles will keep bacteria and plaque from causing tooth decay and gingivitis. We can recommend toothpastes formulated especially for toddlers and suggest the best ways to brush.

  • Mind The Menu

We know that sugary foods aren’t healthy for your toddler’s teeth. Bacteria in the mouth feeds on sugar, and a sugar-heavy diet results in more of the bacteria and plaque which cause cavities. But sugar is not the only food that is not tooth-friendly. For example, foods like citrus fruits and juices can also be a problem. Acidic foods can actually weaken enamel after eating and leave teeth more vulnerable to cavity-causing bacteria and plaque. We have suggestions for tooth-healthy snacks and the best times to brush after eating if you and your child indulge in a treat.

  • Don’t Misuse Bottles & Sippy Cups

Your toddler might still use a bottle at night or a sippy cup throughout the day. Juices and even milk contain sugar that increases the risk of cavities, and if your child goes to sleep with a bottle or cup, these liquids pool in the mouth overnight allowing bacteria to flourish.  If your toddler wants a drink at night or between meals, water is a much better option.

Those tiny teeth are important for so many reasons. They enable children to bite and chew efficiently, to pronounce sounds properly for speech development, and to save space for adult teeth so they erupt in the right place. Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani and our team recommend that your child visit our Dallas office after the first tooth comes in, and always by the first birthday. We will make sure your toddler’s teeth are developing as they should be and suggest ways to keep them cavity-free. Your toddler’s healthy, beautiful smile is a reward worth protecting!

Snack Attack

May 28th, 2025

Should a quick bite between meals make us feel guilty? Or worse, make our teeth suffer a greater risk of cavities? Let’s avoid both those possibilities! We have several tooth-healthy snacking strategies designed to help you keep your enamel cavity-free while preventing snacker’s remorse.

But first, a word or two about why we may find snacking unappetizing.

  • Please, Don’t Feed the Bacteria!

The bacteria in plaque feed on sugars and leave acidic waste products behind. These acids attack enamel, dissolving the calcium and phosphorus minerals that keep it strong. Weakened enamel leaves teeth vulnerable to decay. That’s why Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani and our Dallas team recommend avoiding a steady diet of sugary treats.

Even if you’re not reaching for a soda, or grabbing a candy bar, many snack foods are filled with added sugars. Check the nutritional labels before you indulge to avoid sugar surprises.

  • Off Balance?

Bacteria plus sugar equals more acidic conditions in the mouth. This change in the oral pH balance also reduces our natural defenses against cavity-causing acids.

A well-balanced oral environment depends on saliva to keep acids in check. Saliva washes away lingering food particles after meals, and it neutralizes acidic conditions in the mouth over the course of the day.

How does snacking interfere? Immediately after eating or drinking, acids in saliva increase. It takes about 20 minutes for saliva’s neutralizing process to begin. When we snack throughout the day, saliva doesn’t have a chance to reduce acids as long or as effectively.

  • Staying Power

Sticky and chewy snacks tend to stick to the tops of molars and between the teeth. This gives bacteria more fuel and more time to attack tooth enamel. It’s not just candies that are the culprits here. Chips, bread, pizza crusts, pastries—these simple carbs stick to teeth and break down easily into sugars.

But we promised some *positive* strategic snacking ideas. Here are some ways to make sure that snacking doesn’t put you at a much greater risk for cavities.

  • Be Choosy

Avoid processed treats that are high in added sugars. If you’re craving something sweet, fresh fruits provide sweetness with vitamins included.

Crispy fruits such as apples and Bosc pears, as well as vegetables like celery and carrots, provide gentle scrubbing action to help clean teeth between brushings.

Snacking on cheese helps neutralize acids, and other dairy products are high in calcium and phosphorus, helping rebuild the minerals that acids leach out of enamel.

Eat whole grain breads, pastas, and pastries. They offer more nutrients, and don’t break down into sugars as easily.

Finally, when it’s time to indulge in a sugar-rich treat, save it for a meal. There’s a better chance that other foods will balance the acids created by sugar, and you’ll be getting the most out of saliva’s neutralizing abilities. Speaking of which,

  • Stay Neutral

When you’re craving something flavorful without giving bacteria more fuel for acid production, consider sugar-free gum. Sugar-free gum saves you from adding sugar to your diet, and it increases saliva production as you chew. If we give you the all-clear, chewing a piece or two of gum during the day can help curb your sugar cravings and protect your enamel.

Thirsty? Drink water instead of sodas or energy drinks with your snacks. Water washes away food particles, cuts down on acidity, and provides fluoride to strengthen and protect teeth.

  • To Brush or Not to Brush?

It’s always a good idea to brush after eating. But since eating sugary or acidic foods can leave enamel vulnerable to toothbrush abrasion, many dentists recommend waiting 30 minutes after you snack before brushing. Ask Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani what’s best for your teeth.

If you can’t brush, rinse with water after eating or drinking.

If you wear braces or aligners, be sure to check with Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani about snacking, gum, best times to brush, and any other diet questions.

Talk to Drs. Sheena Allen, Mark Margolin, and Moein Sadrkhani about your snacking habits. Learning when and how to snack is as important as deciding what to snack on. Finding the perfect balance means you can enjoy a mid-day energy boost without guilt—and without risking tooth decay!

2100 Ross Ave Suite 960
Dallas, TX 75201
(214) 999-0110

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