Preshaw, P M Outcomes of non-surgical periodontal treatment by dental hygienists in training: impact of site- and patient-level factors. [electronic resource] - International journal of dental hygiene Nov 2013 - 273-9 p. digital Publication Type: Journal Article ISSN: 1601-5037 Standard No.: 10.1111/idh.12032 doi Subjects--Topical Terms: Chronic Periodontitis--classificationCohort StudiesDental Hygienists--educationDental Plaque--therapyDental Plaque IndexDental Scaling--methodsFemaleFollow-Up StudiesGingival Hemorrhage--therapyHumansMaleMiddle AgedMotivationOral Hygiene--educationPeriodontal Debridement--methodsPeriodontal IndexPeriodontal Pocket--classificationRetrospective StudiesRoot Planing--methodsSmokingTreatment Outcome