Our Blog

Dental X-Rays: Are They Safe?

July 31st, 2025

X-rays have been a function of dental healthcare for a long time. That in and of itself should be good news, because it means we've had plenty of time to improve them. While there is always some risk in exposure to radiation, dental X-ray exposure has decreased significantly due to all the advances in technology. So there’s risk, but X-rays are quite safe.

Think of X-rays as you would about a car. Automobiles these days have all kinds of technology to make them as safe as possible. There's still a chance that you’ll suffer an accident. Would you stop using a car because of that risk? When it comes to dental X-rays, Dr. Robert Kubo and Dr. James Kubo and our team believe the positives clearly outweigh the negatives.

X-rays can be done digitally or with film. For film, X-rays require different exposures at different speeds to produce the image. Digital X-rays have software that automatically adjusts the exposure and produces the X-ray in a digital file. Since they substantially reduce your exposure to radiation, digital X-rays are the current standard in dental offices.

In addition to digital X-rays, lead aprons are an essential piece of X-ray safety. They help protect internal organs from X-rays by acting as a shield. They usually come with a thyroid collar as well, since that is one of the most vulnerable areas to X-rays in the body. Lead aprons can absorb up to 95% of any scatter rays that result from an X-ray. Not bad, right?

Although dental X-rays involve some radiation exposure (not all of it can be eliminated), so does everyday life. Getting too much sun, for example, can be dangerous. The truth is, we accumulate radiation in our bodies over a lifetime, so it’s worthwhile to be aware and avoid as much unnecessary exposure as possible. When it comes to your dental health, though, getting an X-ray — especially when your doctor says you need it — offers more benefits than risks.

Ask us about the type of dental X-rays we use during your next visit to our Fresno, CA office!

Before You Pop the Top on That Energy Drink . . .

July 24th, 2025

We get it. You’re working out and could use a boost. It’s 2 a.m. and that essay won’t write itself (darn it). You’re in the middle of a rehearsal that goes on and on and . . . 

It’s easy to reach for an energy drink when you’re feeling a bit low on, well, energy. These drinks are loaded with caffeine, and, like coffee or tea, can help you feel more alert. But before you pop that top, let’s look at how energy drinks affect your dental health.

  • Energy drinks are very acidic.

Acid levels are measured using the pH scale, which ranges from 0 (most acidic) to 14 (most alkaline). Saliva has a normal pH somewhere between 6.2 and 7.6, which helps neutralize any acidic conditions in the mouth and promotes a healthy oral environment. But saliva’s neutralizing effect can be overwhelmed by highly acidic foods and drinks.

Why are higher levels of acids bad for our teeth? Acids strip away minerals like calcium from tooth enamel, minerals which make enamel the strongest substance in the body. This demineralization weakens the enamel’s protective outer structure and can lead to enamel loss, sensitivity, tooth discoloration, and decay.

Many energy drinks are among the most acidic beverages on the market. Mineral loss in your enamel starts to occur when the pH balance in the mouth falls to 5.5 or less. Lemon juice has a pH between 2 and 3. White vinegar has a pH of 2.5. Energy drinks can range from 1.5 to 3.5 on the pH scale! Studies show that regular consumption of energy drinks greatly increases the risk and severity of dental erosion.

  • Most energy drinks are full of sugar.

Sugar is easily metabolized, or broken down, by the body. When our bodies break down food, energy is released. That’s why companies add sugar as well as caffeine to their energy drinks. 

The plaque bacteria which create cavities also use sugars in these drinks as an energy source, converting sugars into acids. Just like acidic foods and drinks, bacterial acids break down the mineral structure in tooth enamel. You might notice small white spots when the enamel starts to erode—and a cavity starts to develop. 

  • Energy drinks aren’t just bad for your dental health. 

The temporary burst of energy you get from all the sugar in energy drinks is followed by a sugar crash when blood sugar levels go down again, and you can feel tired, weak, or shaky. 

Even worse, one energy drink might contain three to four times the amount of caffeine found in a cup of coffee. Excess caffeine interferes with healthy sleep. It can cause changes in heart rate, blood pressure, and anxiety levels. 

Children and teens are especially vulnerable to the effects of large amounts of caffeine while their brains and bodies are still developing. That’s why the American Academy of Pediatrics recommend no energy drinks at all for children and teenagers. The FDA suggests that adults should not take in more than 400 milligrams per day of caffeine, while energy drinks can range from around 80 to 400 mg per can. 

If you do have the occasional energy drink, what’s the best way to protect your teeth and gums?

  • Don’t linger over your drink. Sipping slowly over time just bathes your teeth and gums in sugar and acids over a longer period. 
  • Drink water when you’re done. Water helps wash away sugars and acids, hydrates, and promotes healthy saliva production.
  • If the team at Kubo Orthodontic Group gives gum a thumbs up, chew a piece of sugarless gum after downing an energy drink to increase saliva flow and help neutralize acids in the mouth. 
  • Wait at least 30-60 minutes to brush after finishing an energy drink. Acids in the drink weaken enamel, and brushing immediately can be abrasive to the tooth surface.
  • Eat a healthy diet rich in proteins, complex carbs, vitamins, and minerals to feel more energetic.
  • Keep up with good dental hygiene. Brush twice each day for two minutes and floss daily, or more often as recommended by Dr. Robert Kubo and Dr. James Kubo.

If you notice signs of enamel erosion—sensitivity, front teeth which are becoming transparent or rough around the edges, yellowish discoloration, or white or brown spots on your enamel—it’s time for a talk with your dentist. When caught early enough, treatment is available which can stop further erosion from harming your teeth.

It can be harder to brush and floss as effectively when you wear braces, so it’s more important than ever to make healthy choices in your diet and to keep up with your dental hygiene. The team at Kubo Orthodontic Group in Fresno, CA is always happy to give hygiene tips! Talk to your dentist or doctor to discover healthy ways to stay focused and energetic. Your workout, your essay, your rehearsal, and, above all, your healthy body and healthy smile will thank you!

How to Protect Your Braces During Sports Activities

July 17th, 2025

Proper mouth protection is recommended by Kubo Orthodontic Group when you participate in any sports activities. If you wear braces, this protection becomes essential. Injuries to your mouth can not only damage your teeth, but your braces could break and cut open your lip.

Full Facial Guards

Full facial guards are often used in football and offer protection to your mouth from most injuries. Even with full facial protection, you may benefit from additional mouth protection. While your face is protected from outside impact, you could still suffer from cuts or damage to your braces from internal impact.

Mouthguards

Mouthguards referred to as boil-and-bites can be purchased at many retail stores. As the name implies, these guards are boiled in water to heat and soften the material. While the guard is still warm, you place it in your mouth and bite down gently. This causes the guard to form to the shape of your mouth. Unfortunately, these guards do not necessarily offer the best protection or fit.

Dr. Robert Kubo and Dr. James Kubo can make custom mouthguards specifically for you. The custom fitting ensures you of better protection and a comfortable fit. Custom guards are also built in layers for durability. The American Dental Association recommends custom guards for orthodontic patients. Your mouthguard will be designed to provide proper protection for both your teeth and your braces.

No matter what type of sport you participate in, a mouthguard can protect your braces. Even an activity as seemingly harmless as table tennis can result in a contact injury. The Academy for Sports Dentistry states that a properly fitted mouthguard should not interfere with any athletic activity.

Kubo Orthodontic Group will provide you with properly-fitting mouth protection to ensure the safety of your braces and your teeth. We will be glad to answer any questions you have so you can continue the activities you enjoy with little concern. If you do suffer any injuries to your mouth or braces during sporting activities, please contact us immediately. The sooner we can care for your mouth, the better the results will be.

Love your new smile? Tell us about it!

July 10th, 2025

At Kubo Orthodontic Group, we proudly treat adults, teens, and children; no matter what your age, we believe you deserve a great smile. Our warm and welcoming team is known for their for their exceptional orthodontic skills. Dr. Robert Kubo and Dr. James Kubo and our talented team have been creating beautiful smiles for years, and today would like to ask: what do you love about your new smile? How has your smile improved your life?

Whether you’ve just come in for an initial orthodontic consultation with Dr. Robert Kubo and Dr. James Kubo or your family has been visiting office for years, we would love to hear your thoughts about your treatment. In fact, we encourage you to leave a few words for us below or on our Facebook page!

We look forward to reading your feedback!

Kubo Orthodontic Group
(559) 438-7600 6315 N Fresno St Suite 101
Fresno, CA 93710

Office Hours

  • Monday: 8:00am to 5:00pm
  • Tuesday: 8:00am to 5:00pm
  • Wednesday: 8:00am to 5:00pm
  • Thursday: Closed
  • Friday: Closed
  • Lunch daily from 12:00pm to 1:15pm