I had a pretty bad tooth ache and made an appointment there for the next morning already. They wanted me to be there at 9am, but even though I was stuck in traffic and arrived at 9.20am, there was no one there/it was closed, the staff just arrived a few minutes after me.
When I stepped into the clinic I couldn't believe my eyes. The whole place is under construction, and of course I know that when you renovate something there'll always be dust, BUT this is a medical institute, it's just not acceptable that everything is dusty, dirty and in a big mess. After I saw that horrible condition (and espec. when I saw that the assistants took their white medical uniform (however that is called) out of a bag just lying around and the uniforms were rather dirty and very dusty too, I just left - even though I had a really bad tooth ache - but it just seemed like a very unhygienic place. In addition, they told me that the doctor (who asked me to be there at 9am) will only arrive a bit before 10. So I found it quite rude to ask me to be there at 9pm when the doctor only arrives at 10am anyway.
I cannot say anything about how it looks when there's no renovation work going on plus I have not seen the treatment room itself, but the main room and the kind of "lab" where they store their materials and obviously prepare it, but a thick dust layer EVERYWHERE on the floor plus dust particles everything in the air (that made me cough a lot), that's just not acceptable.
So if hygiene is important for you when you go to the dentist (well, it should be the most important thing in my eyes), then I can only recommend everyone: don't go there - at least not untill the renovation work is finished.