NCT04033380

Clinical Efficacy of Ceramic vs Resin Block Endocrown

Clinical Efficacy of Ceramic vs Resin Bloc Endocrowns: Study Protocol for the Randomized Clinical Trial

• Status: Unknown
• Phase: N/A
• Study type: Interventional
• Enrollment: 200 (estimated)
• Sponsor: Nanfang Hospital, Southern Medical University · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: Not accepted

Summary

Compare the comfort and durability of Ceramic (VITA,Suprinity ,VS) vs Resin Bloc (VOCO, Grandio Bloc,GB) Endocrown by chairside CAD/CAM system (computer aided design / manufacture). Objective:To provide information of material selection for the chair-side restoration of the teeth after root canal treatment.

Detailed description

Pulpal and periapical diseases are the main causes of tooth loss. Root canal treatment (RCT) is the only effective way to treat these diseases. However, failure of RCT is commonly seen without coronal restoration.Endocrown is a new type of onlay with a retainer in the pulp cavity which consists of a cervical margin in the form of a butt joint and a preparation of the pulp chamber.This restoration method is not only good at the preservation of residual tooth tissue, but also suitable for severely damaged molars or premolars after dental pulp treatment.More and more endondontist tend to use this ways because they are a minimally invasive solution in such cases.Endocrown is mainly made of glass-ceramics, which has the advantages of beautiful appearance, high hardness and good biocompatibility. However, ceramic materials are brittle and fracturable, and need to be sintered twice in the manufacturing process, which is relatively complex and time-consuming. Composite resin block material is a new type of composite material developed in recent years. It is used for chairside CAD/CAM restoration,It has beautiful and natural color, and its elastic modulus is close to dentin. Therefore, it is more compatible with natural teeth in performance.Moreover, In the process of making, the steps of secondary sintering and glazing are omitted and shortened. But, there was no sufficient data to verify which material was more effective. The main aim of this trial is to compare the clinical efficacy of ceramic vs resin-based bloc endocrown. Other objectives include looking for the prognostic and influence factors of the related effects.

Conditions

• Tooth Diseases

Interventions

Type	Name	Description
DEVICE	Resin blocs (Grandio Blocs, VOCO)	composite-base bloc (Grandio Blocs, VOCO)
DEVICE	Ceramic (Suprinity, VITA)	glass ceramic zirconia enhanced lithium silicate glass ceramics (Suprinity, VITA)

Timeline

• Start date: 2019-05-02
• Primary completion: 2021-05-30
• Completion: 2021-10-31
• First posted: 2019-07-26
• Last updated: 2019-07-26

Locations

1 site across 1 country: China