Deciding whether to stay as a dentist or switch careers is a personal decision that depends on various factors such as your passion for dentistry, job satisfaction, financial stability, and future career goals. If you are passionate about dentistry, enjoy helping people, and find fulfillment in your work, then staying as a dentist may be the right choice for you. However, if you are feeling burnt out, unfulfilled, or have a strong interest in pursuing a different career path, it may be worth considering a switch. It's important to carefully weigh the pros and cons, seek advice from mentors or career counselors, and consider your long-term happiness and fulfillment before making a decision. **

It is unclear whether the professor switched the oral examination based on the information provided. Without further context or details, it is difficult to determine if the professor made any changes to the examination. If there are specific details or evidence indicating that the professor did switch the oral examination, it would be important to consider that information in order to make a more accurate assessment. **

Both "Zähne putzen" and "Zähne bürsten" are commonly used in German to refer to the act of brushing teeth. "Zähne putzen" directly translates to "cleaning teeth," while "Zähne bürsten" translates to "brushing teeth." Both phrases are widely understood and used interchangeably in everyday language. **

Good oral hygiene involves maintaining a routine of daily practices to keep your mouth clean and healthy. This includes brushing your teeth at least twice a day with fluoride toothpaste, flossing daily to remove plaque and food particles between teeth, and using mouthwash to kill bacteria. Regular dental check-ups and cleanings are also important to prevent and detect any oral health issues early on. Additionally, avoiding tobacco products and maintaining a balanced diet can contribute to good oral hygiene. **

No, the professor did not switch the oral exam grades. The professor mentioned that the grades were final and could not be changed. The student who asked about the possibility of switching grades was told that it was not an option. **

Private health insurance typically does not cover teeth whitening procedures, as they are considered to be cosmetic treatments rather than medically necessary. However, some dental insurance plans may offer coverage for teeth whitening as part of a broader dental care package. It's important to check with your insurance provider to understand what specific dental treatments are covered under your plan. **

To switch back from private health insurance to statutory health insurance in Germany, you must meet certain criteria. If your income falls below the income threshold set by the government (currently around 64,350 euros per year), you can switch back to statutory health insurance. You will need to inform your private health insurance provider of your intention to switch and then apply for membership with a statutory health insurance provider. It is recommended to seek advice from a healthcare consultant or insurance expert to guide you through the process. **

Based on the information provided, it is not possible to determine if the friend has poor oral hygiene. The fact that the friend has not visited a dentist in several years could indicate poor oral hygiene, but it could also be due to other reasons such as fear of the dentist, financial constraints, or simply not feeling the need to go. Without more information, it would be unfair to make assumptions about the friend's oral hygiene. **