Removable complete or partial dentures (once in 60 months for each arch); fixed bridges (once in 60 months per tooth); replacement of dentures and bridges, but only when they are installed at least 60 months after the initial placement and the existing appliance cannot be made serviceable; adding teeth to an existing bridge; temporary partial dentures to replace any of the six upper or lower front teeth if they are installed immediately after the loss of teeth and during the period of healing; and single tooth endosteal implants when implant replaces permanent teeth through second molars (once per tooth in 60 months).