Crest 3D Professional Effects Whitestrips, $45.99 at Amazon.com

Philips Sonicare 6700 electric toothbrush, $169.99/$119.96 at Amazon.com

Philips Sonicare DiamondClean 9500 electric toothbrush, $279.99 at Amazon.com

Philips Sonicare DiamondClean Smart 9500 electric toothbrush, $279.99 at Amazon.com

Pursonic Water flosser, $39.99 at Nordstrom

TheraBreath 24-Hour Fresh Breath Oral Rinse, Mild Mint, 16 OZ, $8.79 at CVS

Boka Travel-size mouthwash tablets, $19.99 at Amazon.com

Crest Pro Health Densify mouthwash, $8.99/$7.97 at Walmart

Colgate Peroxyl antiseptic mouthwash, $14.39/$9.85 at Amazon.com

biotène Dry mouth oral rinse, $7.99/$6.97 at Amazon.com

Listerine Total Care mouthwash, $11.86/$8.98 at Amazon.com

Marvis Cinnamon mint toothpaste, $10.50 at Amazon.com

Boka Nana hydroxyapatite toothpaste, $11.62 at Amazon.com

Sehalatin Swiss whitening toothpaste, $24 at Gardenheir

Duo Whitening nHa toothpaste tablets, $24 at Amazon.com

Plus Ultra Organic fluoride-free toothpaste (for 2-pack), $34.95 at Amazon.com

Twice Oral Wellness toothpaste, $6.99 at Amazon.com

Philips Sonicare ProtectiveClean electric toothbrush, $109.96 at Amazon.com

Philips Sonicare ExpertClean electric toothbrush, $109.96 at Amazon.com