The TiFinity Toothbrush is a major shift from typical toothbrushes because it uses titanium bristles instead of the standard nylon. The titanium bristles are super thin to reach deep into crevices, while maintaining the same softness as a nylon bristle. The major advantage of titanium over nylon is that titanium is resistant to water and bacteria, so instead of absorbing them, they get repelled, resulting in a cleaner brush. The titanium is also more elastic and durable, allowing you to keep your toothbrush for 2 to 5 years, versus the recommended 3 months.