Digital Technique to Analyze the Wear of Implants and Natural Tooth as Antagonist.

Digital Technique to Analyze the Wear of Screw-Retained Implant-Supported Metal-Ceramic Dental Prostheses and Natural Tooth as Antagonist. A Pilot Study

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05842655

Enrollment

Registered

2023-05-06

Start date

2022-01-01

Completion date

2022-09-01

Last updated

2023-05-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Dental Prosthesis Failure

Keywords

Implant supported, morphometry, screw-retained, digital, wear

Brief summary

The aim of this study was to describe a novel digital technique to analyze the wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth as antagonist. Materials and methods: Ten patients were consecutively included to rehabilitate partial edentulism by dental implants. Both the screw-retained implant-supported metal-ceramic dental prostheses and the natural tooth as antagonist were submitted to a digital impression through an intraoral scan to generate a Standard Tessellation Language digital file preoperatively (STL1), at 3 months (STL2), and 6 months (STL3) follow-up. Afterwards, an alignment procedure of the digital files (STL1-STL3) was performed on a reverse engineering morphometric software and volume changes at the screw-retained implant-supported metal-ceramic dental prostheses and the natural tooth as antagonist were analyzed using Student's t-test. Moreover, Gage R&R statistical analysis was conducted to analyze the repeatability and reproducibility of the digital technique.

Interventions

PROCEDUREThe wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth

A novel digital technique to analyze the wear of screw-retained implant-supported metal-ceramic dental prostheses and natural tooth as antagonist

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

BASIC_SCIENCE

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

21 Years to 35 Years

Healthy volunteers

Yes

Inclusion criteria

* in good health, who presented partial edentulism in the posterior upper maxilla, were consecutively included to rehabilitate partial edentulism by dental implants

Exclusion criteria

* all those who do not meet the inclusion criteria

Design outcomes

Primary

Measure	Time frame	Description
Wear volume (µm3) of the screw-retained implant-supported metal-ceramic dental prostheses	3 months follow-up appointment	Wear volume (µm3) of the screw-retained implant-supported metal-ceramic dental prostheses at 3 months follow-up appointment
Wear volume (µm3) of the natural tooth as antagonist	3 months follow-up appointment	Wear volume (µm3) of the natural tooth as antagonist at 3 months follow-up appointment

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026