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.
Teeth That Appear Longer Than Normal. When gums recede, the root of the tooth is exposed between the dental crown and the gumlines. The result is the appearance of a long tooth. Only one tooth may appear long or your entire smile may seem to be made up of long teeth.