Accuracy of Digital Implant Impression

Accuracy of Complete-arch Digital Implant Impression With Newly Designed Scan Bodies

This study aims to investigate the accuracy of complete-arch digital implant impression using newly designed scan bodies with extensional structure.

Fully edentulous patients with 2-6 dental implants are included in this study. For each patient, the follow three impressions are made: conventional splinted open-tray impression, digital impression using scan bodies without extensional structure, and digital impression using scan bodies with extensional structure. The accuracy of the three impressions is compared in an inspection software.

Inclusion Criteria:

• At least 18 years old and able to understand an informed consent
• Fully edentulous jaw
• 2-6 dental implants have been placed in the edentulous jaw
• The implants have been osseointegrated
• Mouth opening larger than 4.5 cm

Exclusion Criteria:

• Poor oral hygiene
• Presence of peri-implantitis or peri-implant mucositis
• Presence of temporamandibular joint disease
• Unwilling to paticipate in the research