instruction: hello doctor I did not use left side for eating prior to act little pain was there but not sensitivity after one corner broke then I went to the doctor and they suggested me for act as it happened because of cavity one of my tooth second last from the end of lower jaw one day it broke down and I went to doctor then they said you should go for act and I took act treatment prior to this I did not use that side for chewing as sometimes it hurts suddenly so before act one of the corner was broken down already after act again one corner broke down again and now when I close my jaws it hurts also when I rub my finger slightly it hurts sometimes a little pain no sensitivity is there with cold water but hurts little when I close my jaws or I rub my fingers on it
output: hello welcome to iclinq com I have gone through your query and understood your concern when a tooth decays and when the nerve layer of the tooth is affected it starts to give out pain and it loses its vitality becoming more brittle hence it could have fractured also to save such tooth root canal treatment will be performed mild pain discomfort after act is quite normal for the next to days for which you would have been put under pain killers this period is for tooth healing and it is essential that you do not disturb or bite food on that tooth once it completely heals crown procedure is generally performed placing a crown over the root canal treated tooth is mandatory to protect the tooth and to prevent further fracture of the tooth do visit your dentist for the crown procedure and till that do not eat hard chewy foods and avoid chewing food on the involved side