Hello sir There are two possibilities of your condition which gives me various options in my mind. 1- you have the front tooth naturally present over which a cap was placed and has started to look bad. 2- you have a missing teeth and you got it fixed with the support of adjacent one. In both the conditions, there is a problem with the cap placed. As it is a front tooth, I would personally prefer a full ceramic crown which does not have any metal. This is known as zirconia. They have the best look and as it is the front tooth so get it look more natural. The cost ranges from 6-9k. The other option is to get a cap replacement with ceramic crown containing a metal inside. They are known as pfm crown. They do look natural but after some years the ceramic chips or wears off leaving the crown look bad. They are cheaper than zirconia. The cost varies from 4-5k.