Survival of Endocrowns Made From Different Ceramics

Not Applicable

Completed

• Conditions: Dental Caries; Dental Leakage; Pulp Disease, Dental
• Interventions: Device: Dental crown; Device: Hybrid ceramic; Device: Dental prosthesis

• Registration Number: NCT03542019
• Lead Sponsor: University of Jordan

Brief Summary

Restoration of endodontically treated teeth requires a means to protect the cusps from the wedging forces of occlusion. When there is extensive loss of tooth structure, cuspal coverage is warranted. Usually this is in the form of indirect restoration. Traditionally, full coverage crowns have been used which would require further removal of sound tooth structure. Recently, adhesive alternatives have been introduced which allow for conservation of tooth structure.

Different materials can be used for this purpose. The evidence on the long-term survival of these materials is scarce. This study aims to investigate the short and medium-long term survival rate of these prostheses.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2018-04-01
• Study First Submitted QC: 2018-05-29
• Study First Posted: 2018-05-31
• Study Start: 2018-07-01
• Primary Completion: 2020-12-31
• Study Completion: 2020-12-31
• Results First Submitted: 2021-09-08
• Status Verified: 2021-10
• Results First Submitted QC: 2021-11-03
• Last Update Submitted: 2021-11-03
• Results First Posted: 2021-11-04
• Last Update Posted: 2021-11-04

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 60

Inclusion Criteria

• Root canal treated molars with significant loss of tooth structure
• Supra-gingival margins
• Teeth scheduled for cuspal-covering indirect restorations

Exclusion Criteria

• Teeth with extensive cracks or fractures
• Teeth with deep subgingival margins
• Non-functional teeth (no opposing dentition)
• Teeth with advanced periodontitis

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Monolithic zirconia	Dental crown	Monolithic zirconia: a type of ceramic material used to make a dental prosthesis that replaces the missing tooth structure following root canal treatment. Other names might include: Zolid crown, Bruxzir, Bretau, CAD CAM crowns
Hybrid ceramic	Hybrid ceramic	Hybrid ceramic: a type of ceramic material used to make a dental prosthesis that replaces the missing tooth structure following root canal treatment. Other names might include: Enamec, Lava Ultimate, CAD CAM crowns
Lithium disilicate	Dental prosthesis	Lithium disilicate: a type of ceramic material used to make a dental prosthesis that replaces missing tooth structure following root canal treatment. Other names might include: E-max crowns, computer-aided design and computer-aided manufacturing (CAD CAM) crowns

Primary Outcome Measures

Name	Time	Method
Survival of Dental Prosthesis	24 months	The endocrowns (the dental prosthesis studied) were assessed after 24 months. Those that were functional and without any symptoms were considered surviving.

Trial Locations

Locations (1)

Jordan University Hospital; 🇯🇴 Amman, Jordan