The SIS Building or MI6 Building at Vauxhall Cross houses the headquarters of the British Secret Intelligence Service (SIS, MI6). It is located at 85 Albert Embankment in Vauxhall, a south western part of central London, United Kingdom, on the bank of the River Thames beside Vauxhall Bridge.
There are a couple of main issues associated with thin, fragile gums and dental implants. 1  The implant shows through the gums as a grey or grayish tint. This does not look good. 2  The gums can recede causing the bone to recede too. If this happens, the threads of the implant can show.
A collar, called a healing cap, is placed on the head of the implant after it is exposed. This guides the gum tissue to heal correctly. The collar is a round piece of metal that holds the gum away from the head of the implant. (A) The collar will be in place for 10 to 14 days. If you previously had a removable partial denture, your dentist may adjust it so you can use it during this time.