Community First for Treatment has been accused by the UK dental regulator, the General Dental Council (GDC), of the illegal business of dentistry on two occasions in the last two years.
The charges against the company concern dental practices in Eastfield Road in Peterborough, Cambridgeshire and Main Ridge in West Boston, Lincolnshire.
The company was due to appear before Peterborough Magistrates Court on 17 January to answer the charges but the case was adjourned and will be reheard on 15 February.
It is a criminal offence if a company receives payment for dental work when the majority of its directors are not GDC-registered dentists or dental care professionals.
The GDC is committed to protecting the public by bringing cases of illegal practice to court.
All dentists, dental hygienists, dental therapists, clinical dental technicians and orthodontic therapists must be registered with the GDC to work in the UK.