Accuracy of Computer Guided Implant Placement in Edentulous Mandible A Three-Dimensional In Vitro Study

NCT06990360 | Completed DMC

• 2 other identifiers: FUE.REC (13)/12-2017Future University
• Study Type: observational
• Target: 5
• Locations: 1 country
• Sites: 1

Brief Summary

Five stryofoam mandibles were included in this study to assess the accuracy of using computer guided surgical stent in placement of dental implants. The mandibles were CBCT scanned and imported to 3diagnosys software to implant planning. 8 implants were placed in each mandible virtually, 4 anterior implants and 4 posterior implants were placed. The plan was exported as STL file to be imported to the CAD software for designing of the stent. The surgical stent is printed using Micro DGP printer and invision tec e-shell 600 clear resin was used. Stainless steel sleeves were placed in the surgical guide then placed in ethanol 99% to remove the excess monomer. The stent in placed over the mandible and sequential drilling was done until the desired osteotomies width was approached followed by the placement of the implants. Post-operative CBCT was done for the mandible including the implants to assess the accuracy, angulation and position of the placed implants

Conditions

Edentulous Alveolar Ridge; Edentulous Alveolar Ridge In Mandible

Keywords

Computer-guided implant placement; Edentulous mandible; 3D printed surgical guide

Outcome Measures

Primary Outcomes (1)

• Mesiodistal (MD) Angle

  measures in the software in degrees

  1 year

Interventions

CBCT Scanning DIAGNOSTIC_TEST

The Styrofoam mandibles were scanned using CBCT, which was performed for each mandible pre-operatively, the raw DICOM data set obtained from the CBCT scanning were imported to a special third-party software\* for secondary reconstruction.

Eligibility Criteria

• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Five styrofoam mandibles

You may qualify if:

• Five styrofoam mandibles

You may not qualify if:

• no fractures or pathology

Sponsors & Collaborators

• Eslam Nashaat Saied Ahmed Mohamed: lead

Study Sites (1)

future university in Egypt

Cairo, Giza Governorate, 123456, Egypt

Location

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR INVESTIGATOR
• PI Title: Post graduate student

Study Record Dates

• First Submitted: May 18, 2025
• First Posted: May 25, 2025
• Study Start: May 20, 2017
• Primary Completion: August 20, 2024
• Study Completion: September 20, 2024
• Last Updated: May 30, 2025

Record last verified: 2025-05

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL

Locations

EG (1)