For dentistry, CEU San Pablo is a decent private option in Madrid, especially if you want an English‑taught programme with a lot of clinical practice. It’s a 5‑year degree with early simulation labs and a lot of time in the university dental clinic treating real patients under supervision.
Admission is competitive but pretty clear: you apply with your high‑school grades, go through an online interview, and in many cases take biology/chemistry entrance tests; if you’re accepted, you confirm your place with a reservation fee.