For nearly 2 years I am suffering from this, what started as a small white patch in one gum area has now slowly grown to white patch which then turn to red to for gum areas. No burning or pain while eating normally. But a tingling sensation when I eat something hot or spicy. I have tried few oral doctors who did deep cleaning, gave me oxidant medicines, gave me turbocot to apply as oral cream steroid. I even lost weight in between for update my lifestyle, proper brushing. But all in vain. It is now spreading to 1 gum at a time and now I am frustrated. I need someone who could help me get rid of this. Please can someone guide me on exactly what is this and how can I resolve this.
From last 1 week I am having roughness on tip of tongue , no pain no problem while eating just a roughness please check
Could it be cancer ?
I am really worried
Please see the attached photo ,aria is circled

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Timeline
14th July sudden pain when eating food......it was like some hard thing come in food.....pain was very much.....applied toothpaste and then slept...tooth became sore
but no constant pain....now pain only on biting......at an angle. went to dentist, he said their is deep distal caries because of wisdom tooth....so removed wisdom tooth on 14th August.after
10 days stitches removed.....now biting pain increased..it is only when I bite down at that angle..and goes away instantly...on 3rd September I did temporary filling....doctor said evaluate for 21 days..if symptoms then rct..but there was no symptom apart from that biting pain..so permanent filling yesterday...doctor also said that decay was not as deep as indicated in x-ray...now there is permanent GIC filling...yesterday...but still that pain....it is 5/10...which only comes when I bite down.....bite adjusted and all..Percussion test were also taken. They tapped their instrument but no pain...
Filling done on 2nd molar...please look...it was at distal side...I am not able to have bite before...filling...it is feeling like...filling touching first ..also as filling was distal...it is also protruding from distal side...please tell me...what to do...filling done 4 hour before...also GIC is used...
I have mild forwardly placed upper front . I am 17+ years old . I want to know if I can use soft myobrace type blue trainer available online for rs 382 to correct it. Is it safe to use at night? I have attached my teeth photos.
Please advise if trainer will help or I need braces. Thank you.
