MN LDA Licensure Exam 2025 – 120+ Solved Questions | Orthodontics, Sealants, Polishing, Dental Dam

This fully updated and detailed exam guide contains 120+ verified multiple-choice questions with correct answers for the Minnesota Licensed Dental Assistant (LDA) Licensure Exam for the 2025/2026 academic year. It is structured to help students review all key procedures, tools, and clinical responsibilities required for licensure and professional success. The content comprehensively covers: Orthodontics: separators, band placement, arch wires, ligatures, power chains, bracket orientation, and malocclusion classification Preventive Care: sealants (failures, application, retention), fluoride treatments, polishing strokes, and plaque removal Provisional Coverage & Impressions: crown types, bite registration, tray selection, alginate, elastomeric and hydrocolloid materials Dental Dam Use: clamp placement, inversion techniques, ligatures, isolation procedures, and moisture control Endodontics & Restorative: pulpotomy, obturation, rubber stops, canal filling, IRM use, and topical anesthetic application OSHA & Clinical Best Practices: infection control, drying protocols, cement removal, trimming crowns, pre-cleaning agents, and chart documentation This guide is ideal for: Dental Assisting students preparing for Minnesota board exams Learners in Expanded Functions Dental Assisting (EFDA) and Dental Hygiene programs Candidates needing a practical, question-based study format for chairside procedures, orthodontics, and preventive dentistry Each Q&A reinforces exam readiness with clear clinical relevance and alignment to state licensure competencies. Keywords: MN LDA exam, orthodontic bands, sealant failure, coronal polishing, dental dam clamp, rubber cup, alginate impressions, elastomeric material, topical anesthetic, pulpotomy, gutta percha, IRM, fluoride varnish, occlusion classes, ligature tie, arch wire, power chain, endodontic file, provisional crowns, bite registration, suture removal, stainless steel crown, orthodontic separator, moisture control