It depends. If it is a molar with only residual roots, it is impossible to keep it. Others can generally save their teeth through treatment. Treatment of teeth should be charged according to the number of root canals, about 100 root canals, anterior teeth are generally 1 root canals, bicuspids may be 1-2 root canals, and molars generally have 3 or even 4 root canals, with similar prices. It will be different according to different regions. My price is for your reference only.
Wisdom teeth are charged according to the difficulty, up to more than 300.
Resin has poor wear resistance and will change color after being used for a long time. It is suggested that porcelain teeth or stainless steel braces should be made after root canal treatment. Prevent teeth from cracking.