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.”

Think you're too old to have your teeth straightened? While we automatically pair “teenager” with “braces,” at least one in five orthodontic patients are adults. And there's many more that could benefit, as many as three-quarters of adults with a correctable bite problem.

But although orthodontics can be performed at any age, it's not a minor undertaking. It will require time, patience and expense. So, before you decide to undergo orthodontics, here are 3 simple questions to ask first.

Why? Like children and teenagers, adults can benefit cosmetically from correcting a poor bite. But there's another great reason besides a more attractive smile: misaligned teeth are more difficult to care for than normal teeth. Orthodontic treatment is an investment and potential cost-saver in your future dental health.

Why not? Even senior adults can successfully undergo treatment. But braces might be ill-advised if you have either poor oral or general health. Periodontal (gum) disease, for example, can cause bone loss, which makes it difficult to safely and successfully move teeth (and the effort could worsen current disease activity in the gums). Medical conditions like bleeding disorders, leukemia or uncontrollable diabetes could interfere as well. You'll need both a dental and medical examination beforehand.

How? We can use braces — or we might be able to use a newer, more popular option with adults called clear aligners. These are a series of computer-designed clear, plastic trays you wear in sequence until you finish the series. Each tray is slightly smaller than the previous tray, moving the teeth in much the same manner as braces. But unlike braces, you can remove aligners for cleaning or a rare special occasion — and they're much less noticeable than metal braces. Although in some cases braces may still be the best option, it's also possible clear aligners could be the option you've been looking for.

So, are you ready for a new smile and a more maintainable mouth? Visit us for the answers to your questions and see if braces (or clear aligners) can transform your life and health.

If you would like more information on orthodontic treatment for adults, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Orthodontics for the Older Adult.”