This course expands knowledge of comprehensive dental hygiene care through lecture and group discussions. Instructional material from other courses is reviewed and supplemented. Clinical issues and cases are also covered. Field trips may be required. Prerequisites: DH R020 and DH R021 and DH R022 and DH R023 and DH R024 and DH R025. Corequisites: DH R030 and DH R031 and DH R032 and DH R034 and DH R035 and DH R036.