Restoration of a Microdont Using the Resin Composite Injection Technique With a Fully Digital Workflow: A Flexible 3D-printed Index With a Stabilization Holder

• Published in: Operative dentistry Vol. 48; no. 5; pp. 483 - 489
• Main Authors: Watanabe, K, Tichy, A, Kamoi, K, Hiasa, M, Yonekura, K, Tanaka, E, Nakajima, M, Hosaka, K
• Format: Journal Article
• Language: English
• Published: 01-09-2023
• ISSN: 0361-7734; 1559-2863
• DOI: 10.2341/23-007

Direct composite restorations are accepted as a treatment option for microdontia, which is a relatively prevalent condition that poses esthetic concerns. While free-hand composite placement is technique-sensitive and time-consuming, the resin composite injection technique is more straightforward and predictable. A fully digital workflow has been recently introduced, but the 3D-printed resin index is rigid and challenged by undercuts, as opposed to the silicone index. This case report presents a flexible 3D-printed resin index, which can accurately transfer the digitally simulated functional and esthetic form to the final restoration. In addition, a rigid stabilization holder was designed to stabilize the flexible index.