1. Where the Assembly on considering a claim submitted for the approval of a free replacement of a dental appliance or an orthodontic appliance supplied in the course of the provision of relevant primary dental services, considers that there are grounds for believing that—
(a)the replacement is necessitated by such an act or omission as is referred to in regulation 11(1); or
(b)the replacement, although necessitated by such an act or omission as is referred to in regulation 11(1), was not wholly necessitated by a lack of reasonable care as is referred to in regulation 11(3),
it may investigate the matter.