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Effect of Nano-structured Alumina Coating on the Bond Strength of Zirconia Resin-bonded Fixed Dental Prostheses

ConditionsMissing IncisorsZirconia Surface PretreatmentChildrenAdultsDebonding
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
AgeNot listed
SponsorUniversity of Ljubljana, Faculty of Medicine

About this trial

The purpose of this study is to evaluate the clinical outcome of resin-bonded fixed dental prostheses (RBFDPs) pretreated with nanostructured alumina coating (NAC).

The study adopts a prospective, randomized, controlled, double-blind design contrasting the use of NAC to air-borne particle abrasion (APA) (control) as a surface pretreatment method of zirconia RBFDPs used for replacing missing central or lateral incisors. The primary outcome evaluated is the retention/survival of the zirconia RBFDPs pretreated with APA and NAC.

Eligibility criteria

This trial accepts healthy volunteers

Qualifiers

None

Disqualifiers

inadequate edentulous space for the pontic

signs of bruxism

abutment tooth with active periodontal or periapical disease

inadequate enamel bonding surface of the abutment tooth

Trial design

Design model

Parallel

Treatments tested in this trial

  • NAC

    Other intervention

    Pretreatment of zirconia RBFDP with nanostructured alumina coating after milling of RBFDP's framework

  • APA

    Other intervention

    Air-borne particle abrasion of zirconia RBFDPs prior to bonding

Treatment groups

80 Participants
are divided into 2 treatment groups
Group A: APAActive comparator 1 intervention
Group B: NACExperimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Survival rate of zirconia RBFDPs

Survival rate is defined by debonding or restoration loss

Time frame
From baseline through study completion, an average of 1 year

Secondary outcomes

1

Porcelain chipping

Porcelain chipping

Time frame
From baseline through study completion, an average of 1 year
2

Zirconia framework fracture

Zirconia framework fracture

Time frame
From baseline through study completion, an average of 1 year
3

Gingivitis

Visual and tactile inspection of gingiva

Time frame
From baseline through study completion, an average of 1 year
4

Parodontitis

Gingival sulcus depth measurement

Time frame
From baseline through study completion, an average of 1 year

Other outcomes

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

University of Ljubljana, Faculty of Medicine

Lead sponsor

Source ClinicalTrials.gov
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