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. **

It says "street musician." A street musician is a person who performs music in public places for tips or donations. The term "street musicant" is not commonly used and may be a misspelling or a less common variation of "street musician." **

In German, the word "Straße" with a capital "S" refers to a specific street or road, while "straße" with a lowercase "s" is a common noun meaning "street" or "road." The difference in capitalization is important because it distinguishes between a specific street and the general concept of a street. Therefore, "Straße oder Straße?" is asking whether you are referring to a specific street or just a general street. **

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. **

The terms "street" and "road" are often used interchangeably, but there is a subtle difference between the two. A street typically refers to a public road in a city or town that has buildings on either side, while a road is a broader term that can refer to any public thoroughfare for vehicles, including highways, freeways, and rural routes. Ultimately, the choice between using "street" or "road" depends on the specific context and location being described. **

Whether one should walk across the street or along the street depends on various factors such as safety, convenience, and local regulations. Walking along the street is generally safer as it allows pedestrians to stay on the sidewalk away from moving vehicles. However, if there are designated crosswalks and pedestrian signals, it may be more convenient to walk across the street. It is important to always follow traffic rules and use designated crossing areas to ensure safety while walking. **

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. **