sentences:  For around forty years in Australia, dental therapists have been practicing under guidance of dentists providing diagnostic, preventive, restorative and health promotion services to children and adolescents.Common procedures performed by dental therapists include examination, prescribing and exposing intra and extra oral dental xrays, administration of local anaesthesia, preparation and restoration of carious lesions, pulpal therapies, extraction of deciduous teeth and preventive therapies such as fissure sealants and fluoride application.Oral health education and promotion also plays a large part in the dental therapists role.