MedTrace Logo

Vital and Non-vital Posterior Teeth Restored With Onlays and Single Crowns Using Three Different Restorative Materials.

NCT07259265 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 120

Last updated 2025-12-02

No results posted yet for this study

Summary

The objective of this study is to assess the survival rate and the biological and technical outcomes of onlays and single crowns made out of different restorative materials on vital and non-vital teeth. The onlays are made either out of a lithium-disilicate glass ceramic (E.max CAD, Ivoclar Vivadent), hybrid ceramic (VITA ENAMIC, VITA Zahnfabrik) or out of a lithium aluminosilicate glass ceramic reinforced with lithium disilicate (N!ce, Straumann). The crowns are made either out of lithium aluminosilicate glass ceramic reinforced with lithium disilicate (N!ce, Straumann), hybrid ceramic (VITA ENAMIC, VITA Zahnfabrik) or lithium-disilicate glass ceramic (E.max CAD, Ivoclar Vivadent).

Conditions

  • Decayed Teeth

Interventions

PROCEDURE

Crown preparation

The conventional crown preparation will be performed.

PROCEDURE

Onlay preparation

A defect-oriented tooth preparation is performed for an onlay restoration.

Sponsors & Collaborators

  • Institut Straumann AG

    collaborator INDUSTRY

  • Ivoclar Vivadent AG

    collaborator INDUSTRY

  • Dr. med. dent. Malin Strasding

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2019-03-04
Primary Completion
2024-02-06
Completion
2024-02-06

Countries

  • Switzerland

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07259265 on ClinicalTrials.gov