During Artic missions we used baking soda because it would not freeze and it did a good job. Over the years I have seen baking soda toothpastes come out professing its teeth whitening properties.
The following is from myoralcare.com
"As a cleaning agent, baking soda is less abrasive than virtually any other cleaning agent used in toothpastes. Less abrasion means less tooth wear, which helps keep your teeth healthier, longer. And when it comes to cleaning, recent studies indicate that baking soda in high concentrations...breaks down into tiny particles that are able to penetrate enamel crevices and remove food particles and deep stain embedded there. Other cleaning agents, like silica, don't readily break down into such tiny particles, so they are too big to clean inside the enamel crevices.
Light weight and has many uses.
20 Uses Of Baking Soda
1. Baking soda will also put out fires in clothing, fuel, wood, upholstery and rugs.
2. Wash food and drink containers with soda and water.
3.Wash out thermos bottles and cooling containers with soda and water to get rid of stale smells.
4.To remove strong odors from your hands, wet your hands and rub them hard with soda, then rinse.
6. Sprinkle baking soda on your wet toothbrush and brush your teeth and dentures with it.
7. Sprinkle soda in tennis shoes, socks, boots and slippers to eliminate odor.
8. Take a soda bath to relieve general skin irritations such as measles and chicken pox.
9. Take 1/2 teaspoon of baking soda in 1/2 glass of water to relieve acid indigestion or heartburn.
10. Gargle with 1/2 tsp. baking soda in 1/2 glass of water. Freshens and cleans your mouth.
11. Used as a mouthwash, baking soda will also relieve canker sore pain.
12. To relieve sunburn: use a paste of baking soda and water.
13. Bug bites: use a poultice of baking soda and vinegar.
14. Bee sting: use a poultice of baking soda and water.
15. Windburns: moisten some baking soda and apply directly. Soak and wash diapers with baking soda.
16. Use soda as an underarm deodorant.
17. Add to water to soak dried beans to make them more digestible.
18. Use to sweeten sour dishcloths.
19. Use dry with a small brush to rub canvas handbags clean.
20. Apply soda directly to insect bites, rashes and poison ivy to relieve discomfort. Make a paste with water.