3D Optical Surface Profiler

Details

Tender Closed
RFx ID :	25244847
Tender Name :	3D Optical Surface Profiler
Reference # :	TR2021-30
Open Date :	Tuesday, 14 December 2021 1:00 PM (Pacific/Auckland UTC+13:00)
Close Date  :	Friday, 21 January 2022 3:00 PM (Pacific/Auckland UTC+13:00)
Tender Type :	Request for Tenders (RFT)
Tender Coverage :	Sole Agency  [?]
Categories :	41100000 - Laboratory and scientific equipment 41110000 - Measuring and observing and testing instruments
Regions:	Otago
Exemption Reason :	None
Required Pre-qualifications :	None
Contact :	John Hurford 03 479 5024
Alternate Physical Delivery Address  :
Alternate Physical Fax Number  :
Agency Address :

The University requires a high-speed optical, non-contact profilometer for all types of surfaces, including sloped surfaces. We need a non-contact tool that allows quantitative measurements of 3D form and roughness on a variety of surfaces (rough to very smooth, samples which are thin layers), including those with slopes or steps. The profiler should allow efficient and accurate surface measurements to be collected without the need for either fluorescence or vibration isolation.

Dental applications of the profilometer would involve investigations into the quantitative and qualitative analysis of tooth wear and the surface morphology of enamel that has been exposed to various conditions such as enameloplasty or bonding. Tooth wear is a common dental problem that may lead to functional and aesthetic problems, as well as effects on quality of life. Currently and previously used quantitative and qualitative methods for measuring tooth wear have limitations such as subjectivity and imprecision. The use of a profilometer can allow precise monitoring of tooth wear in patients over time, as dental impressions can be profiled. A positive relationship between bacterial adhesion and enamel surface roughness on extracted teeth has previously been identified by researchers within the SJWRI. However, the precise topography of enamel following enameloplasty remains unknown. The profilometer may be used to assess enamel topography in vivo as dental impressions taken following enameloplasty can be profiled, with the potential to lead to clinically relevant findings.

Investigations of surface roughness with applications relating to biofilm formation would be possible with this equipment. Surface roughness is an important factor in the formation of biofilms and applies to implants for medical and dental use. Biofilm-mediated infections in medical devices adversely affect public health and the function of such devices.

There is interest in using the optical surface profiler in research on degradable magnesium alloys for osteosynthesis and natural hydroxyapatite for bone regeneration, to assess the surface characteristics of these materials and to characterise the surface topology of 3D printed scaffolds for wound healing applications.

This tender has been awarded.

• Warsash Scientific Pty Ltd - Unit 7, 1-9 Marian Street, Redfern, New South Wales, 2016, AUSTRALIA
  Value $ 124,000

Award Date: Wednesday, 2 March 2022 (Pacific/Auckland UTC+13:00)
Date RFx was completed/updated: Wednesday, 2 March 2022 10:51 AM (Pacific/Auckland UTC+13:00)