A chairside digital radiographic guide for registering digital casts to cone beam computed tomography scans with strong metallic artifacts

Qin Wu; Jiacheng Wu; Ying Tan; Jikui Sun; Haiyang Yu

doi:10.1016/j.prosdent.2022.11.025

A chairside digital radiographic guide for registering digital casts to cone beam computed tomography scans with strong metallic artifacts

J Prosthet Dent. 2023 Jan 5:S0022-3913(22)00758-2. doi: 10.1016/j.prosdent.2022.11.025. Online ahead of print.

Authors

Qin Wu¹, Jiacheng Wu², Ying Tan², Jikui Sun², Haiyang Yu³

Affiliations

¹ Doctoral candidate, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
² Graduate student, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
³ Professor, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China. Electronic address: YHYmechanics@163.com.

PMID: 36610844
DOI: 10.1016/j.prosdent.2022.11.025

Abstract

Accurate registration of digital casts and cone beam computed tomography (CBCT) scans with strong metallic artifacts is essential for the accuracy of guided implant surgery. This article describes a procedure for mapping digital casts onto CBCT scans containing significant scatter artifacts in the virtual implant planning stage. The technique uses a chairside segmented occlusal wing-like radiographic guide, which is constructed of digital splints fabricated using a desktop 3-dimensional printer and composite resin spheres as markers to accurately superimpose the bimaxillary digital scans onto the CBCT scans in a single procedure. This cost-effective technique is timesaving for clinicians and patients, and the digital information for implant planning can be collected in a single visit.