Exchanging passionate kisses with big-screen star Jennifer Lawrence might sound like a dream come true. But according to Liam Hemsworth, her Hunger Games co-star, it could also be a nightmare… because J.Law’s breath wasn’t always fresh. “Anytime I had to kiss Jennifer was pretty uncomfortable,” Hemsworth said on The Tonight Show.

Lawrence said the problem resulted from her inadvertently consuming tuna or garlic before the lip-locking scenes; fortunately, the two stars were able to share a laugh about it later. But for many people, bad breath is no joke. It can lead to embarrassment and social difficulties — and it occasionally signifies a more serious problem. So what causes bad breath, and what can you do about it?

In 9 out of 10 cases, bad breath originates in the mouth. (In rare situations, it results from a medical issue in another part of the body, such as liver disease or a lung infection.) The foul odors associated with bad breath can be temporarily masked with mouthwash or breath mints — but in order to really control it, we need to find out exactly what’s causing the problem, and address its source.

As Lawrence and Hemsworth found out, some foods and beverages can indeed cause a malodorous mouth. Onions, garlic, alcohol and coffee are deservedly blamed for this. Tobacco products are also big contributors to bad breath — which is one more reason to quit. But fasting isn’t the answer either: stop eating for long enough and another set of foul-smelling substances will be released. Your best bet is to stay well hydrated and snack on crisp, fresh foods like celery, apples or parsley.

And speaking of hydration (or the lack of it): Mouth dryness and reduced salivary flow during the nighttime hours is what causes “morning breath.” Certain health issues and some medications can also cause “dry mouth,” or xerostomia. Drinking plenty of water can encourage the production of healthy saliva — but if that’s not enough, tell us about it: We may recommend switching medications (if possible), chewing xylitol gum or using a saliva substitute.

Finally, maintaining excellent oral hygiene is a great way to avoid bad breath. The goal of oral hygiene is to control the harmful bacteria that live in your mouth. These microorganisms can cause gum disease, tooth decay, and bad breath — so keeping them in check is good for your overall oral health. Remember to brush twice and floss once daily, stay away from sugary foods and beverages, and visit the dental office regularly for checkups and professional cleanings.

So did J.Law apologize for the malodorous makeout session? Not exactly. “[For] Bradley Cooper, Christian Bale, yeah, I’ll brush my teeth,” she laughed.

Hemsworth jokingly agreed: “If I was kissing Christian Bale I probably would have brushed my teeth too. With you, it’s like, ‘Eh. Whatever.’”

If you would like more information about bad breath and oral hygiene, please contact us or schedule an appointment for a consultation. You can learn more by reading the Dear Doctor magazine article “Bad Breath: More than Just Embarrassing.”

Tooth decay is one of the most common diseases in the world, nearly as prevalent as the common cold. It’s also one of the two major dental diseases—the other being periodontal (gum) disease—most responsible for tooth and bone loss.

Tooth decay begins with high levels of acid, the byproduct of oral bacteria feeding on food remnants like sugar. Acid can erode tooth enamel, leading to a cavity that will require removal of decayed material around it and then a filling.

Sometimes, though, decay can spread deeper into the tooth reaching all the way to its core: the pulp with its bundle of nerves and blood vessels. From there it can travel through the root canals to the bone. The continuing damage could eventually lead to the loss of the infected tooth.

If decay reaches the tooth interior, the best course of action is usually a root canal treatment. In this procedure we access the pulp through the crown, the visible part of the tooth, to remove all of the diseased and dead tissue in the pulp chamber.

We then reshape it and the root canals to receive a filling. The filling is normally a substance called gutta percha that’s easily manipulated to conform to the shape of the root canals and pulp chamber. After filling we seal the access hole and later cap the tooth with a crown to protect it from re-infection.

Root canal treatments have literally saved millions of teeth. Unfortunately, they’ve gained an undeserved reputation for pain. But root canals don’t cause pain—they relieve the pain caused by tooth decay. More importantly, your tooth can gain a new lease on life.

But we’ll need to act promptly. If you experience any kind of tooth pain (even if it goes away) you should see us as soon as possible for an examination. Depending on the level of decay and the type of tooth involved, we may be able to perform the procedure in our office. Some cases, though, may have complications that require the skills, procedures and equipment of an endodontist, a specialist in root canal treatment.

So, don’t delay and allow tooth decay to go too far. Your tooth’s survival could hang in the balance.

If you would like more information on tooth decay treatment, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor article “Root Canal Treatment: What You Need to Know.”