Our Blog

Common Malocclusions

June 15th, 2023

When we think orthodontics, we commonly think teeth. Naturally! Straight teeth and a beaming smile are everyone’s orthodontic goal. But orthodontics is a field which specializes in more than misaligned teeth. While your beautifully aligned teeth are the visible outcome of your orthodontic work, a properly aligned bite is the foundation for your healthy smile.

A malocclusion occurs when the teeth and jaws aren’t properly aligned—they don’t fit together the way they should when the mouth is closed. A malocclusion, or bad bite, affects many people to some degree, but not always in exactly the same way. Some of the different types of malocclusion include:

  • Crossbite

A crossbite occurs when upper teeth fit inside lower teeth. An anterior crossbite refers to the front teeth, with one or more upper front teeth, or incisors, fitting behind lower front teeth. A posterior crossbite affects the back teeth, with upper teeth fitting inside the lower teeth on one or both sides of the jaw.

  • Crowding

When the jaw is small and/or the teeth are large, lack of space can result in crowded, twisted, or crooked teeth.

  • Open bite

An anterior open bite means that the front teeth don’t close when biting down, leaving an open space between the upper and lower teeth. A posterior open bite occurs when the back teeth don’t make contact when the front teeth close.

  • Overbite

Our upper front teeth naturally overlap the lower ones a small bit when the teeth are closed. An overbite occurs when the upper teeth significantly overlap the lower teeth.

  • Overjet

When the upper front teeth protrude too far forward over the bottom teeth, it’s called an overjet, or, sometimes, buck teeth. Where an overbite causes a vertical overlap, an overjet takes into account the horizontal relationship of the teeth.

  • Spacing

A jaw that is large, teeth that are small, missing teeth—these conditions can lead to gaps between the teeth.

  • Underbite

An underbite results when the lower teeth and jaw extend further forward than the upper teeth and jaw, causing the bottom teeth to overlap the top teeth.

If you have a malocclusion, what comes next? This depends.

Some malocclusions are so minor that no treatment is necessary. Some are the result of misaligned teeth. Some occur because the upper and lower jaws are growing at different rates. Some are a combination of teeth and jaw misalignments. Some are caused by genetics, while others are caused by injuries or habits like prolonged thumb sucking or tongue thrusting.

Because malocclusions are so varied, your treatment plan will be designed for your specific needs. Braces, aligners, appliances like the Herbst® appliance or the palatal expander, surgery for severe malocclusions—there is a larger variety of treatment options than ever before to help you achieve a healthy bite.

When teeth and jaws don’t fit together as they should, the consequences can be damaged teeth and enamel, problems with the temporomandibular joint, headaches and facial pain, and difficulty chewing, eating, and speaking.

The good news is that early intervention for children can help correct teeth and jaw problems before they become more serious, leading to easier orthodontic care in the teen years, and helping to avoid the possibility of surgery or extractions. This is why Dr. Robert Kubo and Dr. James Kubo and our team recommend an orthodontic assessment at our Fresno, CA office for children around the age of seven.

If you’re an adult with concerns about your teeth or bite, there’s good news for you, too. Dr. Robert Kubo and Dr. James Kubo can devise a treatment plan to improve your bite and your smile no matter what your age.

Of course, despite our title, there’s really no such thing as a “common malocclusion” when we’re talking about your dental health. Each person—and each smile—is unique. Dr. Robert Kubo and Dr. James Kubo will diagnose your malocclusion and create a personalized plan carefully tailored to your exact needs, for an uncommonly attractive, confident, and healthy smile.

Talking Over Your Underbite

June 7th, 2023

You’ve been told that you have a malocclusion called an “underbite.” Let’s look at just what this diagnosis means, and what it means for you.

Just what is an “underbite”?

A malocclusion is another way of saying that you have a problem with your bite, which is the way your jaws and teeth fit together when you bite down. In a typical bite, the front top teeth project slightly beyond, and slightly overlap, the bottom teeth.

An underbite, on the other hand, results when the lower teeth and jaw extend further forward than the upper teeth and jaw, causing the bottom teeth to overlap the top teeth.

What causes an underbite?

Underbites tend to be genetic, and run in families, so, most often, an underbite is something you’re born with. The size of your jaws, the shape of your teeth, or both will affect your bite.

A smaller number of underbites develop because of injuries or early oral habits, such as prolonged and vigorous thumb sucking or tongue thrusting.

How do we treat an underbite?

Your treatment will depend on the type and severity of your underbite, and your age when treatment occurs.

  • Braces and Aligners

If your underbite is a slight one, caused, for example, by crowded or overly large teeth, braces or clear aligners can help move the teeth into proper alignment.

  • Functional Appliances

If the underbite is caused by a problem with upper and lower jaw development, devices called functional appliances can be used to help guide the growth of the jawbones while a child’s bones are still growing and forming.

If you’re a young patient, two appliances commonly used to help correct an underbite are palatal expanders, which gradually widen the upper jaw if it’s too narrow, and reverse pull headgear, which fits both inside the mouth and outside on the face, and provides a steady, gentle pull to encourage the forward growth of the upper jaw.

  • Surgical treatment

In some severe cases, surgical treatment can correct an underbite by reshaping the jawbone itself and positioning it further back to align properly with the upper jaw.

Why treat your underbite?

A serious underbite can cause damaged teeth and enamel, painful problems with the temporomandibular joint, headaches and facial pain, sleep apnea, difficulty chewing, eating, and speaking, and can affect confidence and self-esteem.

By following your treatment plan, you’ll not only prevent these consequences, but you’ll achieve major benefits—a healthy, comfortable bite, and an attractive, confident smile. Want to know more? Talk it over with Dr. Robert Kubo and Dr. James Kubo at our Fresno, CA office for all the information you’ll need!

Working Behind the Scenes—Lingual Braces

May 31st, 2023

There are many great reasons to see an orthodontist. For a healthier bite. For straighter teeth. For a more confident smile. So why are you hesitating? If the visibility of traditional braces is what’s holding you back, ask Dr. Robert Kubo and Dr. James Kubo about lingual braces.

With regular braces, brackets are bonded to the front of each tooth with a special adhesive. Ligatures around each bracket or bracket clips grip an archwire, which does the work of moving the teeth. The gentle pressure from the wire guides the teeth into alignment in gradual stages. Every adjustment moves the teeth to their perfect positions. These braces are quite effective—and they are usually quite visible.

Lingual braces, on the other hand, are virtually invisible. Lingual means “toward the tongue,” and this placement is the difference between lingual braces and more traditional types of orthodontic braces.

Lingual braces are custom designed to be applied to the inside of your teeth. Specially designed brackets are attached to the backs of the teeth. Individually crafted archwires are used to guide your teeth to their best alignment.

Lingual braces can be the solution to many orthodontic concerns:

  • If you need or want invisible braces for personal or professional reasons, lingual braces are a great option. Because they are behind your teeth, they are even less noticeable than clear aligners—and you don’t need to keep track of your hours wearing them.
  • Lingual braces keep the front of your teeth braces-free for playing a brass or reed instrument, or for participating in sports. (Just remember, a mouthguard is always a good idea for athletic activities, and especially when you wear braces.)
  • Both brackets and wires can be customized to fit your teeth perfectly, and new lingual brackets and wires are more comfortable than ever.

You might be a good candidate for lingual braces if:

  • You have a large enough tooth surface to place a bracket. Adults with small teeth—or children—might not be have enough room on the back of each tooth to hold a bracket.
  • You don’t have a major malocclusion (bite problem) which would make lingual braces impractical. A deep overbite, for example, could cause the wires and brackets behind the upper teeth to come loose or detach as they come in contact with lower teeth.
  • You are dedicated to keeping up with your oral hygiene. Because wires and brackets are behind the teeth, it can be harder to keep them free from food particles and plaque.

Finally, even if lingual braces aren’t the perfect match for your orthodontic needs, there are other options that can work for you. Smaller metal brackets, ceramic brackets that blend in with your enamel, and clear aligners mean today’s orthodontic work is more subtle and discreet than ever before.

For a healthier bite, for straighter teeth, for a more confident smile—don’t hesitate. Contact our Fresno, CA office to discuss the many great options you have available to give you the smile you’ve always wanted—front and center.

What should we blog about?

May 24th, 2023

As a patient at Kubo Orthodontic Group, your opinion matters! Dr. Robert Kubo and Dr. James Kubo and our team love hearing what our patients think about our practice and the services we provide, and now we want to know, what do you think we should blog about?

Perhaps there’s a treatment you’ve always wanted to know about, or you’d like to learn about a specific way to improve your health and smile. Whatever your idea, we’d love to hear about it! You can let us know by posting here or on our Facebook page!

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