why were electric toothbrushes invented（関連順）

1:14

Dental Care & History : Who Actually Invented the Electric Toothbrush?

ehow

736 回視聴 - 15 年前

1:14

Who Actually Invented the Electric Toothbrush?

ExpertVillage Leaf Group

134 回視聴 - 3 年前

5:11

How Electric Toothbrushes Are Made

Triwood1973

26,583 回視聴 - 14 年前

2:31

toothbrush made out of hair? The history of the toothbrush

DIO IMPLANT

2,350 回視聴 - 3 年前

4:01

Electric vs. Manual Toothbrush | Are Electric Toothbrushes Better?

Teeth Talk Girl

97,010 回視聴 - 2 年前

23:43

HOW IT WORKS | Electric Toothbrush, Sushi, Charcoal, Rubber Gloves | Episode 4 | Free Documentary

Free Documentary

2,630,911 回視聴 - 10 年前

5:13

How It’s Made Electric Toothbrush.mp4

How It's Made

3,845 回視聴 - 7 年前

0:42

Electric toothbrushes Full details, inventor, types uses #happiness #love #share #knowledge

Dr.PhebeSumeon M (Phebe)

27 回視聴 - 5 か月前

7:44

Best Electric Toothbrushes 2024 [watch this video before buy]

5BestOnes

363 回視聴 - 2 日前

4:52

7,000 Year Old Toothbrush vs Future Toothbrush !!

Dental Digest

47,680,128 回視聴 - 2 年前

9:46

How It's Made: Toothbrushes

How It's Made

18,861 回視聴 - 1 年前

9:44

I Built World's Largest Electric Toothbrush

Jake Carlini

1,980,670 回視聴 - 2 年前

12:36

Best Electric Toothbrushes in 2024 (Dental Hygienist Explains)

Teeth Talk Girl

125,467 回視聴 - 6 か月前

5:44

Electric Toothbrushes Explained : Sonic vs Rotating Oscillating Electric Toothbrush

Dr. Arib Deshmukh

154,940 回視聴 - 2 年前

4:31

Worst vs. Best Toothbrush on Amazon!

Dental Digest

25,560,350 回視聴 - 2 年前

1:10

How to use Oral-B electric toothbrushes

Oral-B India

487,072 回視聴 - 2 年前

4:45

Should I Get An Electric Toothbrush? | Is It Worth It?

Ask A Hygienist

1,651 回視聴 - 5 年前

0:49

🇮🇳 Indian Toothbrush & Toothpaste #shorts

Dental Digest

60,134,484 回視聴 - 3 年前

1:35

How Cheeeese® Sonic Electric Toothbrushes are Made In Factory

Oralcheeeese

136 回視聴 - 2 年前

3:38

How Does An Electric Toothbrush Charge Itself?

BrainStuff - HowStuffWorks

150,642 回視聴 - 10 年前

結果 : why were electric toothbrushes invented