Aim: To explore the basic and core competencies of dental hygienists, construct a systematic and scientific competency framework for dental hygienists taking into account China's national conditions and provide a theoretical basis for the future training in China and other countries that have not yet established the competencies of dental hygienists.
Background: The establishment of dental hygienists role is essential for the public to improve the dental health level. Currently, more than 50 countries around the world have established the role of dental hygienists and defined the core competencies needed by dental hygienists. However, studies on developing a standardized and unified consensus of competencies of dental hygienists are lacking in China.
Methods: Based on the literature review and theoretical research, this study explored the theoretical basis and fundamental principle of constructing the competency framework for dental hygienists. Moreover, a correspondence questionnaire on dental hygienists' competency framework was initially constructed to clarify the specific content of each competency. Finally, the Delphi method was adopted to establish the indicators of the dental hygienists' competency framework according to the principle of expert selection and inclusion criteria.
Results: The three rounds of Delphi consultation experts were from nursing, stomatology and management and other fields. Three rounds of Delphi results showed that the expert authority, enthusiasm and coordination coefficients were high. Thereafter, a competency framework of dental hygienists with 4 primary indicators, 15 secondary indicators and 50 tertiary indicators was constructed, which included theoretical knowledge, professional skills, professional abilities and occupational qualities.
Conclusion: Literature and theoretical research methods along with Delphi expert consultation were used to construct the competency framework of dental hygienists based on the onion model. The competency framework of dental hygienists was scientific, reasonable and practical, which is consistent with the current health situation in China and has distinct Chinese characteristics. Some of our findings, offer ideas for other developing countries that have not yet set up the role of dental hygienists or are in an initial stage.
Keywords: Competency; Delphi; Dental hygienists; Framework; Onion model.
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