DH 170 – Dental Hygiene Principles – 2025/2026 – 30 Exam Questions on Ergonomics, Clinical Setup, Instruments & Oral Care

This document provides 30 updated exam questions with fully correct answers for the course DH 170 – Dental Hygiene Principles for the 2025/2026 academic year. It serves as a focused and reliable resource for mastering foundational concepts essential to both academic success and clinical readiness in dental hygiene programs. Topics include key terms and principles such as ergonomics, client and operator positioning, oral wellness, and cultural diversity. The document also explains the roles of students, clients, and primary care providers, while introducing the components of the dental hygiene treatment area—including the dental chair, air/water syringe, evacuation lines, radiographic equipment, and typodonts. In addition, students will become familiar with instrument kits, instrument reprocessing areas, and the structure of an efficient clinical workspace. Highly suitable for: First-year Dental Hygiene students Dental Assisting students and applicants Students preparing for clinic orientation or practical assessments Learners reviewing for theory-based quizzes on dental equipment and care environments Keywords: DH 170, dental hygiene principles, ergonomics, client positioning, oral care, treatment area, dental equipment, air water syringe, evacuation lines, instrument kits, reprocessing area, radiographic tools, typodont, cultural diversity, dental assistant prep