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.
Gums recede for several different reasons. The primary cause of gum recession is due to gum disease. When bacteria invade the area around the tooth it causes the gums to detach and creep farther down the root. Other causes include the use of tobacco, abrasive toothbrushing techniques, tooth misalignment and grinding.