What can we do with metal what can we do with also AMEX or principal ceramics okay great so we been talking about the anterior region is anything special we need to to look. At what were. Doing a single or maybe two units in the posterior region of mouth there's really no special considerations just that you need to always consider the occlusion and remember. That interferences usually happen in the back of them off and we need to be very aware that even slight changes with certain patients may cause a big problem okay thank you in on. All of this point I would like to know more about either is anything I can do is a dentist regardless of the region of the mountain is anything I can do is a dentist to make your job better so.