G. T. Ong

Learn More
  • G Ong
  • 1990
The relative effectiveness of waxed dental floss, dental tape and Superfloss as proximal plaque removal aids were compared in 20 subjects. Each subject used each of the three interdental aids for 1 week. The order of use was randomly selected. Interdental plaque scores were recorded at baseline, weeks 1, 2 and 3. At the end of week 3, subjects answered a(More)
The means by which oncogenes and their products activate malignant transformation are currently under intense investigation. However, published papers on experiments using human tumour material do not always report in detail their methods of collection or storage of the specimens. In order to assess the stability of oncogene encoded proteins following(More)
An improved dynamic-biased CMOS operational amplifier for biomedical circuits is presented in this paper. The proposed ultra-low power operational amplifier comprises a weak-inversion biased differential input stage, a pseudo class-AB output stage and a multi-phase master bias dynamic biasing circuit. Using GLOBALFOUNDRIES 0.18 μm CMOS process, the(More)
UNLABELLED Patients with extensive malignancies involving the femur often require total femoral replacement when their limbs can be salvaged. Reported series are small and involve heterogeneity of tumours. We present nine patients with osteosarcomas of the femur treated at our institution between 2003 and 2010 with a mean follow-up of 27 (6 to 56) months.(More)
  • 1