Artificial lesion preparation to support in vitro studies of tooth remineralisation & demineralisation and study of acid induced lesions/white-spot lesions
Artificial lesion preparation is the initial stage of studying tooth remineralisation or demineralisation. Lesions are areas of decalcified tooth enamel which may develop into dental caries or be precursors to dental erosion.
The relative efficacy of dentifrices in the repair of demineralised tooth enamel is often compared using in vitro models. Fluoride is often the active agent of choice in such dentifrices though other agents may also assist in enamel repair. In vitro remineralisation and demineralisation studies are a cost-effective alternative to clinical trials which can guide formulation development and support product claims.
Our experts can provide artificial lesion preparation to support in vitro studies of enamel remineralisation. We are able to provide you with lesions so that you can carry out your own in vitro studies. Alternatively we can design and carry out bespoke studies that meet your particular requirements, whether they are for toothpastes, mouthrinses, gels or other type of dentifrice.
Within our dedicated oral care testing laboratory we can produce artificial lesions in bovine or human enamel or dentine in a wide variety of shapes and sizes. Lesion ‘windows’ can be created by protecting the sides and undersides of the substrates with dental wax or protective coatings (e.g. nail varnish). We are also able to provide you with thin cross-sections for analysis by microradiography.
We have experience of conducting in-house or literature-sourced protocols and can tailor the protocol to your specific product application instructions. We can produce quick and simple acid-induced lesions or alternatively produce lesions over a period of several days by incubation in acid gels. These can then be used in enamel remineralisation models (pH cycling) and be measured using surface microhardness or microradiography.
For over 18 years our Clinical Research Services group has been a trusted partner for developers and manufacturers of oral care products. We provide a one source solution for both in vitro studies and human trials providing robust data to support the efficacy and safety of novel treatments.