The cost for any Crown, whichever brand or type, is evaluated as per unit cost and it does not make a difference whether it is a front tooth or a back tooth. Lava Zirconia crowns come under 3 different categories with warranty certificates of 5 years 10 years and 15 years. There is no fixed cost that a dentist can tell you because it depends upon many other factors. It can range from 7000 to 20000 rupees per unit. Regards