Faculty of Dentistry, University of Hong Kong.

BioStatistics Laboratory
Dental Materials Science Laboratory
::	Fig. 1 INSTRON
::	Fig. 2 LEITZ-Micro Hardness Tester with Leica DC Camera
::	Fig. 3 Surtronic 3+
::	Fig. 4 DX-100 Ion Chromatograph
::	Fig. 5 Water purification system
Oral BioSciences Laboratory
::	Fig. 6 GeneAmp® PCR System 9700, GeneAmp® PCR System 2700, RoboCycler 40 Temperature Cycler
::	Fig. 7 CHEF Mapper XA System
::	Fig. 8 ABI PRISM® 310 Genetic Analyzer
::	Fig. 9 Spiral Plater, Autoplate 4000
::	Fig. 10 Anaerobic chamber
::	Fig. 11 Multi-station 'Artificial Mouth' Culture System
::	Fig. 12 ATB Expression
::	Fig. 13 SpectraMax 340 Microplate Spectrophotometer
::	Fig. 14 TOA-DKK AF-100 ATP Analyzer
::	Fig. 15 PHILIPS XL30 CP Scanning Electron Microscope (SEM)
Hard Tissue Laboratory
::	Fig. 16 Centrifuge, BECKMAN Avanti J-25I
::	Fig. 17 Ultracentrifuge, BECKMAN Optima XL-100K
::	Fig. 18 Microtome, LEICA RM2155
::	Fig. 19 Polycut E/ Ultramiller, Leica SM2500 E
::	Fig. 20 Saw Microtome, Leica 1600
::	Fig. 21 Ultramicrotome, Ultracut S, Leica
::	Fig. 22 Leica Qwin Image Processing & Analysis Software, Version V2.6
::	Fig. 23 Laboratory Based Computer Tomography Machine, uCT-20
::	Fig. 24 High-Pressure Liquid Chromatography Systems, WATERS

Photo of Research Laboratory Facilities
Fig. 20 Saw Microtome, Leica 1600

Function/capability:

For sectioning hard samples, e.g.
- Decalcified or undecalcified, embedded or unembedded bone, with or without implants
- Teeth with or without implants
- Mineralogical samples, ceramics and porcelain
- Glass-fibre reinforced plastics
Internal-hole saw (280 um thin) is diamond coated and rotates horizontally at a speed of approximately 600 r.p.m.. An annular triple frame ensures outstanding stability.
The saw's small thickness of 280 um ensures a relatively little material loss.
The specimen is drawn towards the saw by a spring which can be adjusted according to the different degree of specimen hardness.
A built-in water cooling prevents overheating of the sample and caries the saw dust away.

Research projects :

Effect of calcium phosphate lozenges on enamel lesions: an in vitro study.(MDS student : Dr. Miko Y.W. Ng)

Recent publications :

Itthagarun A., Wei S.H.Y. and Wefel J.S., The effect of different commercial dentifrices on enamel lesion progression: an in vitro pH-cycling study, International Dental Journal. 2000, 50(1):21-28.

Technician responsible: Mr. Chui Ying Yip


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