Anti-plaque and Anti-calculus Testing

In vitro anti-plaque and anti-calculus testing to evaluate anti-bacterial, anti-adhesion or enzyme inhibition agents or crystal growth inhibition agents

In vitro anti-plaque and anti-calculus testing can be carried out using essentially similar models whereby human plaque is grown on roughened glass rods seeded with whole human saliva.

Oral care product manufacturers often incorporate anti-plaque or anti-calculus agents in their dentifrice formulations to provide obvious consumer benefits. New agents require screening using a simple and effective model that can be used to guide product development.

We provide in vitro screening of anti-plaque and anti-calculus benefits using a model in which plaque is grown on roughened glass rods seeded with human saliva. Typically the growth will be built up over a period of four to five days and will involve cycling the rods between product treatment, saliva, and nutrient broth. Anti-plaque benefits can be quantified in terms of dry biofilm weight and/or by measuring Total Viable Counts (TVC) of aerobic bacteria.

Our dedicated team of scientists can design the test according to your specific requirements and incorporate the analyses appropriate to your needs. We can also perform statistical analysis of the data which will be provided to you in a fully signed-off report.

Anti-calculus tests use a similar model of in vitro plaque growth which also involves periodic exposure to crystal growth inhibitors and plaque mineralising solution. At the end of the test the residual biofilm is dissolved in acid and tested for calcium content using ICP-OES. The effectiveness of different agents can thereby be compared.

For over 18 years our Clinical Research Services group has been a trusted partner for developers and manufacturers of oral care products. We are bringing quality and safety to life by providing a one source solution for both in vitro studies and human trials providing robust data to support the efficacy and safety of novel treatments.

Intertek Clinical Research Services (CRS) has a dedicated in vitro laboratory which conducts testing of all aspects of Oral Care products. We are particularly adept in designing bespoke in vitro models to cater for your specific requirements. Intertek Clinical Research Services is licensed to handle and store human tissue under the Human Tissue Act 2004 and follows the principles outlined within the act as well as complying with local ethical guidelines.
Our team of laboratory scientists have a combined experience of over 30 years of testing oral care products and between them have degrees/PhD/MSc in Dentistry, Chemistry, Analytical Chemistry and Biological Sciences. They have also contributed to a variety of scientific papers in collaboration with many well-known clients and have presented posters at International scientific conferences.

Oral Care Product Consumer Trial Studies:

Need help or have a question? +44 (0) 151 347 4810

Need help or have a question?

+44 (0) 151 347 4810
Wirral (UK):
+44 (0) 151 347 4810