Answered by Shaykh Faraz Rabbani
I read in ‘endless bliss’, that if someone has crowned or filled teeth, one should follow the Maliki or Shafi’i madhab in wudu, ghusl and salah, and that one must remake his ‘hanafi’-prayers that he had prayed with the filled or crowned teeth. Because ‘In the Hanafi Madhab, if the area between the teeth and the tooth cavities do not get wet a ghusl will not be acceptable’. Is this correct and could you please explain it more precisely to me? And then after I told this to a friend of mine, he said that I should not follow this fatwa, because I had my teeth filled before I became a Muslim. And after I became Muslim I only should make ghusl before going to the dentist, he said that confused me a little, not only because the teeth-problem. Could you please advice me?

Walaikum assalam wa rahmatullah,
The position mentioned in Endless Bliss is not the relied upon opinion of the Hanafi school. Rather, it is explicitly stated in the commentaries of the school that it is permitted to place fillings in one’s teeththis is related from Imam Abu Hanifa and his major students themselves. From this permission, it is obviously understood that the ritual bath (ghusl) of someone with fillings is valid. Otherwise, it would entail affirming the absurd.
Wassalam,
Worship with Tooth Fillings