11 online startups making toothpaste, toothbrushes, whiteners, and aligners to help you improve your smile

Boka's electric toothbrush features activated charcoal bristles to help limit bacteria growth and give you a pleasant brushing experience. Combine that with its toothpaste, which contains nano-hydroxyapatite (instead of fluoride) to naturally repair enamel, for a unique but effective twice-daily routine. You can choose from a variety of product bundles to subscribe to, or feel free to shop for brushes and accessories a la carte.

What to buy:

• Boka Kit, $70 + $20 refill (every 3 months)
• Floss, $5
• Classic Brush Two-Pack, $10

Read more about Boka:

• I tried a $75 electric toothbrush with bristles made from activated charcoal — here's how it worked

Goby's take on the electric toothbrush more closely resembles traditional designs, with its round oscillating brush head and storage stand. However, it charges by USB so it's more portable, and there are always cool limited-edition designs (often in collaboration with artists) to shop. The brush offers two speeds, normal and sensitive. We recommend the subscription option, which is more flexible than those of other startups.

What to buy:

• Gold Electric Toothbrush, $80 + $6 refill (every 1, 2, or 3 months)
• Midnight Electric Toothbrush, $50 + $6 refill (every 1, 2, or 3 months)
• Rose Electric Toothbrush, $60 + $6 refill (every 1, 2, or 3 months)

Read more about Goby:

• Meet the $50 electric toothbrush that's giving big name brands a run for their money

You may recognize it from it's viral "corn test" video, but the Burst electric toothbrush has several features to boast about, including three different brush modes, a strong motor that delivers 33,000 vibrations per minute, and anti-microbial charcoal bristles. One of the strongest aspects of the brush is its four-week battery life. Customers also love the brand's whitening strips.

What to buy:

• The Whitening Sonic Toothbrush, $69.99 + $6 refill plan (every 90 days)
• Coconut Whitening Strips, $19.99

Read more about Burst:

• I tried the Burst toothbrush made popular by the viral 'corn test' video — here's how it stacked up against my Philips Sonicare

Braces and Invisalign are expensive, which is why startups like Candid are stepping in with solutions that are not only more affordable, but also more convenient to use. By using its starter kit or visiting one of its physical studios, you can receive a personalized, orthodontist-approved plan to straighten your teeth. It'll send you all the aligners you need at once, and the total cost of treatment is less than $2,000.

What to buy:

• Personalized treatment plan and plastic aligners, $1,900

Read more about Candid:

• I got my teeth straightened through an online service called Candid for under $2,000 — here's how it works

SmileDirectClub is older than Candid and has helped improve the smiles of more than 650,000 customers. Get started with its at-home impression kit or visit one of its many "Smile Shops" for a 3D scan of your teeth. Then, you can choose one of two types of aligners: the Clear Aligners, which you wear for 22 hours a day, or the new Nighttime Clear Aligners, which you only wear for 10 hours each night. It also sells an affordable LED teeth-whitening kit.

What to buy:

• Personalized treatment plan and plastic aligners, $1,895
• Bright On Teeth Whitening Kit, $79

Read more about SmileDirectClub:

• SmileDirectClub's $79 LED whitening kit worked exceptionally well — and it didn't cause me any tooth sensitivity

Glowup's teeth-whitening kit combines a whitening agent personalized to the user's teeth sensitivity and discoloration level with a 16-minute light treatment to deliver pain-free and noticeable results. After taking its online quiz to determine your specific whitening needs, you'll receive this kit to use in the comfort of your own home. The company says customers can see up to eight shades of difference in brightness after a week of use.

What to buy:

• Teeth-whitening kit, $60

Read more about Glowup:

• I tried a $60 teeth-whitening kit that was personalized to my level of sensitivity and discoloration — here's what it's like

A premium toothpaste with a social mission — that's Twice, a new company cofounded by Lenny Kravitz that donates 10% of profits to the GLO Good Foundation, which serves communities with life-changing dentistry, education, and supplies. It makes two kinds of whitening, cavity-preventing toothpaste: one for morning use and one for nighttime use. Both are formulated with vitamins and aloe vera to soothe your teeth and gums, but the flavors differ to give you an awakening or calming experience, depending on the time of day.

What to buy:

• Early Bird + Twilight toothpaste, $17

Read more about Twice:

• I tried toothpaste from Twice, an oral care startup that was cofounded by Lenny Kravitz — it helps provide free dental care to underserved communities in the Bahamas

Wildist is created by a P&G and Etsy alum, and the influences of these experiences are clear. While quality, efficacy, and transparency are at the heart of its natural toothpastes and deodorants, it also strives to make these everyday personal-care products visually captivating. Right now, it sells three types of toothpaste — try its sensitive version, formulated with ginger, or its nighttime version, formulated with soothing chamomile.

What to buy:

• Paste Party (3-Pack), $21
• AM/PM Teeth (2-Pack), $14
• Soothinger toothpaste, $8

Read more about Wildist:

• This startup is bringing personal-care products into the 21st century — its natural deodorant and toothpastes work incredibly well and look beautiful in your bathroom

This oral-care brand prides itself on using natural ingredients and environmentally friendly packaging in all of its products, which include adults' and kids' toothpaste, mouthwash, and toothbrushes. You'll find coconut oil, activated charcoal, and real mint as common ingredients in its top sellers.

What to buy:

• Sensitivity Relief Toothpaste, $5.22
• Activated Charcoal Toothpaste Twin Pack with Black Toothbrush, $14.08
• Activated Charcoal Extra Freshening Mouthwash (3-Pack), $17.88

Read more about Hello:

• The best natural toothpaste you can buy

Does anyone really need luxury floss? If that means the floss is extra strong and thick, not to mention flavorful, then yes, you need Cocofloss. The soft, textured floss is gentle on your gums while scrubbing away plaque and removing food particles. It doesn't fray as easily as regular floss, which ultimately means you waste less product and money.

What to buy:

• Cocofloss (6-month supply), $25

Read more about Cocofloss:

• The best dental floss you can buy