Dental Hygienists can diagnose within their remit to scale and polish teeth and provide advanced periodontal therapy. They may do this utilising local infiltration and inferior dental nerve block analgesia. They may apply prophylactic and antimicrobial materials, carry out fissure sealants, take radiographs, and undertake monitoring and screening procedures including intra and extra oral assessments. They provide detailed oral hygiene and dietary advice. They may provide emergency temporary replacement of crowns or fillings and take impressions. With additional training they may treat patients under conscious sedation, carry out tooth whitening and remove sutures. Dental Therapist (who also now qualify as Dental Hygienists) in addition may also undertake the following treat the dentition with simple direct restorations using all materials except prior pinned placements, extract deciduous teeth under local infiltration analgesia and with appropriate training, provide pulp treatments and placement of preformed crowns on deciduous teeth.