I have sensitive teeth and already have crown for three teeth. My front lower both teeth lost their gum low. Doctors told me its called bone loss and shortened them put the cap on both teeth. But still I feel its not strong and it has torture like black out line though I clean them well. How many root canals we can get? Is there any cancer problem through RC? How to avoid stain in crowned teeth and make them strong? How to support other good teeth without RC?

Dr. Isha MalhotraDentist13yrs exp

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You cannot get stains on porcelain fused metal crowns. The black line which is showing is metal base of the crown. Which usually appears over a period of time due to recession in gums. If your front teeth have caps. And sensitive. You have to get the root canal treatment done in the tooth which is more sensitive. Amongst the capped teeth. You can use sensitivity paste like senquel f. Apply for three to five minutes and later brush with same paste. For two weeks hopingly sensitivity would subside. If it does not subside. Kindly get root canal done in tooth which is more sensitive under the cap. Root canal is not cancerous. 

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