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3. American Dental Hygienists' Association (ADHA) Standards for Clinical Dental Hygiene Practice 2016 https://www.adha.org/resources-docs/2016-Revised-Standards-for-Clinical-Dental-Hygiene-Practice.pdf
4. The complete periodontal examination;Armitage;Periodontol.,2004
5. Diagnosis of dental caries conventional V/S 2 recent methods;Bindra;Indian J. Dent. Sci.,2016