5 Parts of the Mouth and What They Do

Woman smiling

Most think of the mouth as simply a means to eat, drink and speak, but it is a lot more complex than that. The mouth has many different components that work together so seamlessly that you may not even be aware of their many functions. Below, you’ll learn what 5 parts of the mouth do and why good oral care is needed to allow them to perform their duties properly.

Teeth, Gums and Alveolar Bone

The main task your teeth have is to tear and chew food into tiny pieces for your body to digest, but they also shape your face and help you to pronounce words and sounds. Your teeth are protected by enamel, the hardest material in your body, and are rooted into your alveolar bone. This bone stabilizes them while your gums help to hold them in place and protect their roots from decay.

Tongue

Your tongue is one of the hardest working muscles in your body. It is made up of groups of muscles and is always working, just like the heart. Even when you sleep, the tongue constantly pushes saliva down your throat. It also helps you to eat, speak, swallow and taste. Inside your mouth, you have about 10,000 taste buds that allow you to distinguish between salty, sweet, savory and bitter flavors.

Masseter Muscle

The masseter is the strongest muscle in the body. It runs through the rear part of the cheek from the temporal bone to the lower jaw on each side. It is the muscle that opens and closes your jaw as you chew and can close the teeth with a force as strong as 200 pounds.

Lips and Cheeks

Your lips and cheeks help create your facial expressions, allow you to pucker up for a kiss and help you speak. Your lips also let air enter your mouth as you breathe and keep food and saliva in as you eat.

Salivary Glands

Your mouth has six salivary glands that produce saliva. This liquid consists of water, minerals and proteins that dissolve food and aids in the digestion process. Saliva also keeps your mouth moist so that you can speak, eat and swallow. Another important aspect of saliva is that it neutralizes and removes acids that bacteria on your teeth produce, protecting your mouth from tooth decay and gum disease.

In order to keep all of these parts functioning properly, it’s important to brush twice a day and floss to clear out bacteria and food that may get stuck in your teeth. Don’t forget to clean your tongue! Taking these steps and visiting your dentist on a regular basis will help keep your smile healthy and strong.

About the Practice

Drs. Christine Laster and Dalton Hunt are dedicated to providing each patient with customized, comprehensive dental care. This team of dentists offers a wide range of services, including preventive care, pediatric dentistry and more. Their top priority is to improve the wellbeing of each patient and help them achieve the healthy, beautiful smile they deserve. If it’s about time for a checkup, visit the website or contact the office at (919) 787-0355 to schedule your next visit.

What Our Patients Are Saying

Nathan

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I've been coming to this practice for years now since moving to the Raleigh area. The office is always clean and organized and the staff have always been friendly and communicative. Also, the TV's mounted to the ceiling are a nice touch! I've been seeing Dr. Laster for several years before our insurance changed causing me to change to Dr. Rensch. Both are so easy to talk to and always made me feel at ease.

Jamilah B.

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From beginning to end 5/5! I thought I was experiencing a dental 911. I submitted an inquiry at 11:30pm and by 8am the next morning, Deidra (front office staff) was already leaving me a message. She was so sweet and patient at 8am lol. After our initial conversation, I informed all follow up dentists “I found my dentist office” but thank you so much! Today I was welcomed with the same energy from Diedre to Britany then finally Dr.Wrench. The music playing throughout the office was fantastic; ie music selection and volume. The TV’s on the ceiling and wall made my procedure so painless and enjoyable! I watched an entire Christmas movie lol! Dr. Wrench (apologies for spelling) made my teeth absolutely perfect! I left telling my friends and family I have a million dollar smile! 😊 I can tell he wanted them perfect and he did! Thank you all so much for being amazing! Sincerely, Your next patient.

Rachel F.

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Dr. Laster and Dr. Rensch go above and beyond for their patients. I have seen both for various treatments and I always feel comfortable and heard. They take time to listen and to talk with you. They explain your options and work with you to develop the best plan for your care. They are always upbeat and positive and you can tell they truly love what they do. The front desk staff is exceptional as well. Deidre is so caring and very sweet. She’s efficient, understanding and conscientious of your time. I highly recommend.

Yolanda O.

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Where do I begin?!!! Diedra(front desk) she is an absolute Angel. Her customer service and overall personality was what I truly needed! The Team....OMG they took care of me! Doc made sure I was prepared, comfortable, and overall excited about what was about to happen! I had my procedure 12/20/25 and I can say I feel Great! Still a little swollen but I can see the results and I am very happy!! So if you are on the fence please consider this office because it offers the best experience and the BEST PRICE!!! I CAN'T BELIEVE HOW MUCH I WAS QUOTED AT THE OTHER LOCATION 😖 But anyways, Best Christmas present to myself! Here's to 2026 with a new smile! Come get Yours!😁

Bodie F.

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Connections Dentistry was great! The staff is so friendly and truly cares about their patients. My appointment was quick, and honestly the best dental experience I’ve had. They are great about offering helpful solutions without making you feel like you are being reprimanded… which was the reason I was putting off the dentist. 100% recommend!

Laura P.

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Dr. Rensch and his team are absolutely phenomenal. They are so friendly and enjoyable to work with. It is so convenient to have a Dentist office that also specializes in oral surgery, all in one place! The best in town!

Cala R.

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All the staff is super accommodating and reassuring every step in the process from X-rays, cleaning, treatment plans and scheduling! So grateful I stumbled on other recommendations from patients that led me to my first appointment! Never been so excited to move forward with my future appointments!

Our Patients Stories

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