I would recommend the Philips Sonicare DiamondClean Smart 9700. It has advanced features such as multiple cleaning modes, a pressure sensor, and a smart brush head recognition system. It also comes with a charging travel case and a smartphone app for personalized coaching. Overall, it offers a comprehensive and effective cleaning experience for your teeth and gums. **

Without further information or context, it is impossible to determine if the old Philips Sonicare is broken. It would be best to inspect the toothbrush for any visible damage or malfunctioning parts. If the toothbrush is not working properly, it may need to be repaired or replaced. **

I use an electric toothbrush. I find that it provides a more thorough and efficient cleaning compared to a regular toothbrush. The rotating and oscillating bristles help to remove plaque and debris more effectively, and the built-in timer ensures that I brush for the recommended two minutes. Overall, I have found that using an electric toothbrush has improved my oral hygiene routine. **

As an AI, I do not have personal preferences or the ability to use a toothbrush. However, I can provide information on both types of toothbrushes. Manual toothbrushes require manual brushing motions, while electric toothbrushes use powered bristles to provide the brushing action. Both types can effectively clean teeth when used properly, but some people may find electric toothbrushes easier to use, especially those with limited dexterity or mobility. Ultimately, the choice between a manual or electric toothbrush depends on individual preference and needs. **

The Philips Sonicare Smart may not be able to connect to the app due to several reasons. It could be due to a compatibility issue with the device's operating system or software version. Additionally, there may be a problem with the Bluetooth connection between the toothbrush and the app. It is also possible that there is a temporary issue with the app's servers or the toothbrush itself. Troubleshooting steps such as restarting both the toothbrush and the app, ensuring they are both updated to the latest versions, and checking for any Bluetooth interference may help resolve the connection issue. **

The choice between an electric or regular toothbrush ultimately depends on personal preference and individual dental needs. Electric toothbrushes can be more effective at removing plaque and reducing gingivitis, making them a good option for those with dexterity issues or who want a more thorough clean. However, regular toothbrushes can be just as effective when used properly and are more affordable. It's important to choose a toothbrush that you feel comfortable using and that helps you maintain good oral hygiene. **

A toothbrush itself is not poisonous. However, if a toothbrush is ingested, it could cause choking or internal injury. Additionally, some toothbrushes may contain small amounts of toxic materials in the bristles or handles, so it's important to keep them out of reach of children and pets. Overall, while a toothbrush is not inherently poisonous, it should be used for its intended purpose of oral hygiene and kept away from ingestion. **

The choice between a sonic toothbrush and a rotating toothbrush ultimately depends on personal preference and dental needs. Sonic toothbrushes use high-frequency vibrations to clean teeth and gums, while rotating toothbrushes have bristles that spin in a circular motion. Sonic toothbrushes are often preferred for their ability to reach deep between teeth and along the gum line, while rotating toothbrushes may be better for removing surface stains and plaque. It's important to consider factors such as sensitivity, gum health, and specific dental concerns when choosing between the two types of toothbrushes. **