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 attach to the surrounding bone by a periodontal ligament (âperiâ â around; âdontâ â tooth) made up of collagen fibers that join into the tooth on one side and bone on the other. Dental implants fuse directly to the bone. The gum tissues also attach to the root of a tooth with collagen fibers as described above.emovable Implant-Supported Tooth Replacement: If all of your lower teeth are missing, depending on the design of the removable restoration, two to six implants may be used to support a lower denture. If all of your upper teeth are missing, a minimum of four implants may be used to support an upper denture.