35 Result(s)

Article

The effect of ultrasound on the setting reaction of zinc polycarboxylate cements

The set of glass ionomer cement (GIC) is accelerated by application of ultrasound. Although GIC has somewhat displaced zinc polycarboxylate cement (ZPC) in dental applications the latter is still extensively u...

S. Shahid, R. W. Billington, R. G. Hill… in Journal of Materials Science: Materials in… (2010)

Article

Kinetics of fluoride ion release from dental restorative glass ionomer cements: the influence of ultrasound, radiant heat and glass composition

To compare the effect of ultrasonic setting with self curing on fluoride release from conventional and experimental dental glass ionomer cements. To compare hand mixed and capsule mixing and the effect of repl...

N. K. Thanjal, R. W. Billington, S. Shahid… in Journal of Materials Science: Materials in… (2010)

Article

Effect of ultrasound on the setting characteristics of glass ionomer cements studied by Fourier Transform Infrared Spectroscopy

Objective To investigate the effect of ultrasound (US) application, US staring time and US duration on the setting of glass ionomer cement (GIC) by using Attenuated Total Reflectance Four...

A. Talal, K. E. Tanner, R. Billington… in Journal of Materials Science: Materials in… (2009)

Article

The role of glass composition in the behaviour of glass acetic acid and glass lactic acid cements

Cements have recently been described, made from glass ionomer glass reacted with acetic and lactic acid instead of polymeric carboxylic acid. From their behaviour a theory relating to a possible secondary sett...

Saroash Shahid, R. W. Billington… in Journal of Materials Science: Materials in… (2008)

Article

Characterisation of some experimental silicones

Release of antimicrobials/antibacterials like chlorhexidine diacetate (CHD) has proved successful in inhibiting Candidal colonisation of silicone-based biomaterials. However, their addition will increase water...

S. Parker, I. Meththananda, M. Braden… in Journal of Materials Science: Materials in… (2006)

Article

An alternative regimen for root canal disinfection

Article

Microbiological evaluation of photo-activated disinfection in endodontics (An in vivo study)

Article

The advantages and disadvantages of running a clinical trial in general practices

Article

The in vivo perception of roughness of restorations

Article

A laboratory evaluation of the construction of resin-bonded cast restorations

Objective: To compare the effect of two construction techniques and two pattern materials on the fit of resin-bonded cast restorations.

H S Chana, G J Pearson, R J Ibbetson in British Dental Journal (1997)

Article

Surface topography of enamel and dentine from primary teeth following infrared Nd-YAG laser irradiation: An in vitro study

Data on the effects of laser radiation on primary teeth are scarce. This study investigates the effects of exposing sound enamel, photo-initiated sound enamel, sound dentine and carious dentine of extracted pr...

L. A. Jalil, R. Labella, G. J. Pearson in Lasers in Medical Science (1997)

Article

A comparative study of etching enamel by acid and laser

Acid etching is regarded as one of the main means of providing additional retention in aesthetic dentistry. Alternative methods of achieving bonding to tooth tissue which have been proposed include laser etchi...

H. Jamjoum, G. J. Pearson, A. V. McDonald in Lasers in Medical Science (1995)

Article

Excimer laser (248 nm) drilling of tooth tissue: Preliminary investigation

Removal of bulk dental hard tissue is carried out conventionally using burrs and turbine handpieces. This paper reports on the use of excimer laser radiation in the production of tunnel preparations to access ...

B. C. M. Patel, J. Moss, G. J. Pearson in Lasers in Medical Science (1994)

Article

A survey of current practice into the use of aesthetic inlays

In recent years there has been a concerted effort to produce an aesthetic restoration to replace amalgam, while retaining its qualities of strength and longevity. The use of porcelains and composite resins use...

D A Oram, G J Pearson in British Dental Journal (1994)

Article

Effect of mixing speed on mechanical properties of encapsulated glass-ionomer cements

It is well established that the strength of encapsulated dental amalgam is affected by the speed of mixing. An investigation into the effects of mixing speeds on the compressive strength of three encapsulated ...

D Gee, G J Pearson in British Dental Journal (1993)

Article

The effect of maturation on in-vitro erosion of glass-ionomer and other dental cements

The clinical durability of restorations made using water-based materials depends upon the type of material used. Current specification tests cannot predict durability, possibly because these are carried out on...

J A Williams, R W Billington, G J Pearson in British Dental Journal (1992)

Article

The comparative strengths of commercial glass-ionomer cements with and without metal additions

Metal reinforced glass-ionomer cements are said to possess superior mechanical properties when compared to non-metal reinforced glass-ionomer cements. However, the literature to date does not always support th...

J A Williams, R W Billington, G J Pearson in British Dental Journal (1992)