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.
Dental treatments can lead to the gums receding. This may be intentional (for example to expose a tooth that is buried in the bone, or make a tooth âlongerâ to allow for better fitting crowns). Unintentional causes include ill-fitting crowns or dentures. Trauma to the tissues, for example an oral or lip piercing.