Clinical Trial of Zirconia and Metal Adhesive Bridges

Queen Mary University of London

Status

Withdrawn

Conditions

Missing Teeth

Treatments

Procedure: Zirconia-based adhesive bridge

Procedure: Metal-based adhesive bridge

Study type

Interventional

Funder types

Other

Identifiers

NCT01347177

100298307

Details and patient eligibility

About

Adhesive bridges are becoming popular in patients with congenitally missing teeth and these are type of bridges that can be done with only minimal or with no preparation to replace the missing tooth/teeth. The best clinical gain is the minimal tooth preparation or no need for the removal of tooth substance. Treatment for this type of bridges does not usually require anaesthesia. In addition, adhesive bridges can provide reasonable aesthetical outcome with minimal cost and reduced chair time.

The biggest issue is that high failure rate in the long term, and gray colour shining through the metal wing cemented onto the abutment tooth. This can compromise the aesthetical outcome. The aesthetical problem can be solved by the use of zirconia all ceramic material to construct the bridge.

Sex

All

Ages

18 to 80 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

Male or female ≥ 18 years of age
Has a maximum of 2 units requiring placement
Is a regular dental attendee and agree to return for assessments
Written subject informed consent (IC) for this protocol will be obtained prior to study enrolment. Each subject will be required to sign and date the IC form prior to their participation
Sound or minimally restored abutment(s)

Exclusion criteria

The presence of any periodontal pocket depths equal or above 4 mm with active periodontal disease
Any history of adverse reaction to clinical materials to be used in this study
They are pregnant or had serious medical condition that may interfere with the dental treatment
Acquired tooth loss more than 2 units requiring replacement
Participants who have parafunctional habits
Severe Class II Div II cases