Zhermack Information Magazine

The Casartelli (or Bridge Guide) Impression Technique

21 October 2022

The Casartelli (or Bridge Guide) impression technique is best suited to fixed prostheses, clinical cases in which correct reproduction of the preparation margin is complex or when other previously used impression techniques have failed.

We will now focus on why this technique was developed, its…

Disinfection of noncritical surfaces in dental clinics

20 October 2022

The market offers many types of disinfectants with differing characteristics in terms of theireffectiveness and compatibility with materials.

In healthcare settings, choosing the right disinfectant can be far from simple. For this reason, in 1957, Earle Henry Spaulding defined the criteria …

The classification of elastic and rigid impression materials

8 September 2022

What impression materials are used in dentistry and how are they classified?

Impression materials can be divided into two main types [1,2]:

  1. Elastic impression materials
  2. Rigid (or non-elastic) impression materials

All impression materials fall into one or the other of these categories, which differ

ISO 4823: the standard governing impression materials

8 September 2022

187 ISO standards have been published in the field of dentistry, regulating almost all aspects of the dental industry and establishing the requirements that need to be respected. (1)

ISO is an independent, international, non-governmental organisation. Its membership is made up of the national …