Dr. Gin Brendan Mervyn Shui Shim is a Dentist in Orchard, Singapore Dr. Gin Brendan Mervyn Shui Shim practices at Smilefocus Family Dentistry in Orchard, Singapore. He completed BDSc from The University Of Melbourne, Australia in 1991. Some of the services provided by the doctor are: Periodontal Flap Surgery,Dental Implant Fixing,Teeth Whitening,Gum care and Obstructive Sleep Apnoea etc.