Table 1 Scores, sensitivity, and specificity of Part 1 questions

Do you normally breathe through your mouth?

Are you concerned that you may have bad breath?

As a baby, were you breast-fed? [negative question]

Do you think you have an excessive overbite?

Do you often have nasal congestion?

Are your front teeth easily discolored?

Are the gums of your front teeth often red and swollen?

Is your mouth normally open?

As a child (until around age 10), did you often have nasal congestion, from rhinitis or allergies?

When you swallow, does your tongue protrude between your front teeth?

Does your lower jaw extend beyond your upper jaw?

Are you a fast eater?

Does your mouth feel sticky when you wake up?

Do you snore when sleeping? (Or, have you been told that you snore?

Is your mouth and/or throat dry and/or sore when you wake up?

How many times a day do you brush your teeth?

Does the tip of your tongue normally not touch anywhere in your mouth?

Do you drink a lot of water during a meal?

Are you prone to tartar, even though you brush your teeth?

Upon waking, do you have phlegm in your throat?

Can you curl your tongue, as in this photo?

Are you more comfortable breathing through your mouth?

Is your lower jaw small? (Or, have you been told that it is?)

Are you overweight?

Are you prone to cavities on your front teeth?

Do you normally chew on only one side of your mouth?

Do you catch cold easily?

Is it hard for you to bite off food with your front teeth?

Do you have poor occlusion, or are your teeth not properly aligned? (Or, have you been told so?)

Can you wiggle your nose?

Do you have difficulty breathing (nasal congestion) when you are lying down?

Do you often have chapped lips or dry mouth?

Do the corners of your mouth turn down?

Do you have a history of smoking?

Are you able to swallow saliva with your mouth open?

Do wrinkles appear on your chin when you close your lips?

Is the tip of your tongue touching your front teeth (or just behind your front teeth) right now?

Can you whistle?

Do you make chewing noises when you eat?

Have you ever had orthodontic treatment?

Do you exercise to the point of shortness of breath?

Have you had a tooth or teeth pulled for orthodontic reasons?

Does food often spill from your mouth?

Do your gums bleed?

Is the thickness of your upper and lower lips markedly different?

Do you chew your food well when you eat?

Do you grind your teeth in your sleep? (Or, have you been told that you do?)

Can you chew even hard food well?

Do you often have sores in your mouth?

Do you normally sleep on your side, or on your stomach?