Ruling on correcting previously filed teeth
Question

I am a 27 year old unmarried woman. My front teeth are filed at the bottom, and I would like to correct them further. Is this regarded as altering the creation of Allaah?.
Praise be to Allah.If the filed asked about is regarded as a blemish or deformity then there is nothing wrong with correcting the teeth in that case, and that is not included in the hadeeth of ‘Abd-Allah ibn Mas’ood (may Allah be pleased with him) who said: “May Allah curse the women who do tattoos and the women who have them done, the women who pluck eyebrows and the women who file their teeth, altering the creation of Allah.” Narrated by al-Bukhari (4886) and Muslim (2125). 
Filing teeth was done to make the woman look younger or make the teeth look more beautiful. 
Al-Nawawi (may Allah have mercy on him) said: 
As for the words “women who file teeth for the purpose of beauty”, what this means is that they do that with the aim of beautification. This implies that what is forbidden is that which is done for the sake of beautification. But if it is needed for medical reasons or to correct a fault in the teeth and so on, there is nothing wrong with it. 
And Allah knows best. End quote. 
See also the answer to question no. 47694. 
And Allah knows best.