2026 Volume 18 Issue 2 Pages 62-69
Digital impression using intraoral scanners (IOS) has garnered significant attention as an innovative alternative to conventional impression techniques. This article comprehensively examines the measurement principles of IOS, characteristics of digital data, and comparative analysis with traditional methods. IOS offers numerous advantages including enhanced patient comfort, reduced chair time, and streamlined digital workflow efficiency. While IOS demonstrates accuracy comparable to or exceeding conventional methods for single crowns and small-span bridges, limitations exist in cases involving extensive edentulous spans and deep subgingival preparations. Achieving high-precision data acquisition requires systematic protocols encompassing pre-scan evaluation, thorough moisture control and gingival retraction, appropriate scanning paths, and rigorous data verification. This article addresses the clinical decision-making competencies necessary for understanding case-specific characteristics and selecting optimal impression techniques accordingly.
