Zirconia and Metal-based Single Crown Posterior Restorations.

University of Bologna

Status and phase

Completed

Phase 4

Conditions

Dental Prosthesis

Prosthodontics

Dental Crowns

Treatments

Device: dental crowns

Study type

Interventional

Funder types

Other

Identifiers

NCT02758457

222893

Details and patient eligibility

About

The objective of this study was to compare the 5-year survival and clinical behavior of single posterior ceramic crowns made with pressable ceramic on zirconia or on a metal framework. If failures occurred, the further aim of the study was to delineate the factors contributing to the failure. The null hypothesis stated that the survival of zirconia-based restorations would be no worse that those made with metal-based material.

Enrollment

72 patients

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Informed Consent as documented by signature
Male and female patients from 18-70 years of age
Need for a single crown restoration
Presence of antagonist
minimum of 20 teeth
moderate to good oral hygiene with the ability to perform mechanical oral hygiene techniques including tooth brushing
low to moderate caries risk, and no active periodontal disease.

Exclusion criteria

Women who are pregnant at the date of inclusion
Known or suspected non-compliance, drug or alcohol abuse
Inability to follow the procedures of the study, e.g. due to language problems, psychological disorders, dementia, etc. of the participant
Smoking more than 15 cigarettes a day
Poor oral hygiene (Plaque Index over 30%)
Bruxism
vital teeth
allergic reaction or hypersensitivity to ingredients of the adhesive or restorative material