Stephen J Bonsor

The Dental Practice, 21 Rubislaw Terrace, Aberdeen; Hon Senior Clinical Lecturer, Institute of Dentistry, University of Aberdeen; Online Tutor/Clinical Lecturer, University of Edinburgh, UK.

Re-endodontic Treatment. Part 2: How?

Where a decision is made to undertake non-surgical re-treatment, additional assessment is required. Case selection is essential to providing predictable treatment and obtaining informed consent, with...

Root canal re-treatment. Part 1: why and when?

There may several reasons for failure, which can be categorized as technical (procedural) errors, biological factors or others..

The high-speed revolution: a practical guide to friction grip burs

Common to both high-speed and speed-increasing handpieces is the friction grip (FG) bur, the component parts of which are shown in Figure 1. The International Organization for Standardization (ISO)...

Indirect restorations: an update

Indirect restorations are associated with a range of widely documented disadvantages, dating back to some of the earliest professional publications, for example: crowns are ‘a mausoleum of gold over a...

Endodontic Update: 50 years of progress

The use of X-ray radiation to make images has been used in dentistry since 1896, and in endodontics since 1899. Its main uses have been as follows:
In the diagnosis of peri-radicular disease often...

The Use of a Gothic Arch Tracing to Record Centric Relation in the Construction of Complete Dentures

Despite the diversity of opinion regarding the nature of CR,6 it has been used in restorative dentistry as a stable and reproducible position when registering the occlusion in the provision of...

Disinfection of the root canal system: what should the protocol be?

In orthograde root canal treatment, the clinician must access the pulp chamber of the tooth, locate and access all the root canals and prepare these to remove all pulpal tissue and infection, if...

‘Let there be Light,’ and there was Light, but was it Enough? A Review of Modern Dental Light Curing

Modern dental material and light-curing technology developments are often based on improving convenience for the dental practitioner.

Hydraulic cements for various intra-coronal applications: Part 1

The most important feature of these materials is the setting mechanism and their interaction with the clinical environment. When the cement is mixed with water, hydration reactions ensue and, in the...

Hydraulic cements for various applications in endodontics: Part 2

The intra-radicular materials include the root canal sealers and the materials used for apical plugs. The properties of these materials are very diverse. The requirements of hydraulic cements used for...

Ceramics in dentistry: which material is appropriate for the anterior or posterior Dentition? Part 1: materials science

The translucency of glass ceramic materials depends largely on the volume of crystals within the glassy matrix and the pore size.2 Zirconia has been regarded as an opaque restorative material with...

Ceramics in dentistry: which material is appropriate for the anterior or posterior dentition? Part 2: recent clinical research

The authors of the present article consider that this comparison is of great relevance, given that metal–ceramic crowns and bridges have been the ‘gold standard’ for tooth-coloured indirect...

Technique tips: Ten top tips to overcome common mistakes concerning the use of dental materials

This is the most important tip and one that can never be repeated too often or stressed too much. Regrettably, it is one that many dentists fail to do often, or indeed, at all. On receipt of a new...

Two Eyes, Two Fingers, Two Minutes: Making It Easier to Recognize and Manage Medical Emergencies in Dental Practice Part 2: Algorithms to Guide Treatment using the M-DEWS2 Tool

In the UK, over 8 million people, or approximately 12% of the population, have been diagnosed with asthma with approximately 160,000 people being newly diagnosed each year.2 Asthma is a chronic...