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Biomedical subjects

P J Milward

Publications and source records attributed to P J Milward.

9 recordsLinked to original sources
PubMed1997

Automatic identification of dental appliances.

AIM: To develop a reliable, machine-readable coding system for dental appliances. METHODS: Incorporation of two-dimensional bar codes and matrix codes into a range of dental appliances using printed thermal substrates and laser-etched ceramic discs. RESULTS: Problems including reaction of thermal substrates with methyl methacrylate monomer, loss of code clarity, limited areas available for bar codes, difficulty in scanning opaque pigmented acrylic resin and palatal and lingual surfaces were overcome using 4 mm2 data matrix codes etched onto ceramic discs. CONCLUSIONS: Reliable automatic identification of dental appliances was achieved using laser-etched matrix codes. Further development is necessary in relation to optimisation of code size, encryption, scanners and maintenance of code readability over time.

Dental Equipment↗
PubMed1997

A bimaxillary sports mouthguard: a modified technique.

The bimaxillary mouthguard provides enhanced protection for a participant in contact sports. This article describes the fabrication of a polyvinylacetate-polyethylene (PVAc-PE) bimaxillary mouthguard in which the connection of the maxillary and mandibular components is reinforced by pressure thermoforming a 2-mm PVAc-PE sheet over the labial and buccal portions of the mouthguard.

Athletic Injuries↗
PubMed1995

The bimaxillary mouthguard.

The bimaxillary mouthguard provides enhanced protection for the participation in contact sports. This article describes the bimaxillary mouthguard and outlines construction techniques.

Humans↗
PubMed1995

Heat-cured silicone bimaxillary mouthguard.

A laboratory procedure for the construction of a heat-cured, silicone, custom-made bimaxillary mouthguard for contact sports is described. Contours and vertical dimension are easier to control than with the conventional thermoformed product, and there is no danger of injury from contact between the maxillary and mandibular components.

Dental Prosthesis Design↗
PubMed1992

Computer aided technical instruction, (C.A.T.I.).

The article refers to the development of several computer programs designed to fulfil the role of teaching aids in relation to the technological aspects of dentistry. The hardware used was a BBC Master computer, this being a deliberate choice, to demonstrate that it is not necessary to have state of the art computer technology in order to produce very satisfactory computer aided technical instruction packages. All the programs were written in BBC Basic. Computer graphics illustrate and simplify dynamic concepts involved in dental technology. The programs having been developed in house proved to be inexpensive, in addition the program structure allows for easy upgrading. An extract from one of the procedures that serves to make up the modules is included to demonstrate the simplicity of the programming and the modular concept of program development.

Computer Simulation↗
PubMed1991

Effect of the curing cycle on acrylic denture base glass transition temperatures.

Glass transition temperature of a polymer is an important physical property which may have a major effect on the dimensional stability of denture base materials. Thermomechanical analysis has been used to determine the glass transition temperature of specimens of denture base materials which had been produced by various selected curing cycles. It was found that different curing cycles produced variations in glass transition temperature of up to 20 degrees C.

Acrylic Resins↗