hello, you need to visit a dentist and get it checked. If sharp teeth is causing pain, you can get them grinded.

line is a common thing and is present in everyone. But it your sharp teeth are hurting you and causing ulcers then you can get rounding off of the sharp cusps.

Hello Mam, those sharp teeth can be slightly rounded off also we need to check if your grinding your teeth in night . If there is grinding you need to wear a night guard

Sharp tooth need to be trimmed little bit to avoid trauma to the tissue if it's a healthy tooth.If it is sharp because of  any fracture or tooth cavity treat the tooth and go for a cap

Hi Mam , line on the cheek is normal , but sharp teeth or not good , pls visit Dentist and get smoothening of your sharp teeth to avoid tissue trauma , Dr.Venkat VDENTIS DENTAL CARE, Hyderabad

White line on the cheek is pretty much normal. However if teeth margins are very sharp and is bothering you too much, you can get teeth reshaped /trimmed a little bit. Remember that trimming the teeth may cause sensitivity so if it requires too much to teeth to be trimmed you can consider going for Crown (cap) on the teeth. Visit your dentist and discuss the options.

Hello Mam, You can visit a dentist and get these sharp areas rounded by Enameloplasty procedure. Regards Dr Sumanmakam