Natural Dentition, Prosthesis and Antagonist Wear 3D Analysis
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorImplantology Institute
About this trial
Wear resistance is one of the most important physical properties of teeth, and wear resistance of zirconia against artificial acrylic, enamel and composite resin denture teeth has not been clearly established.
Implant-supported dental restorations present a higher threshold for occlusion perception when compared to natural teeth, which can occlusal overload mechanisms or lead to wear of rehabilitation materials or the antagonist arch.
In clinical conditions, however, many other factors influence the complex interaction between dental enamel and opposing substrates: patient-related factors such as dietary habits, dysfunctional occlusion, masticatory forces, and bruxism contribute to accelerated enamel loss of antagonist teeth.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
fully dentate (with at least 10 teeth ) and do not have any tooth mobility;
at least 12months follow up
Disqualifiers
Maxilla or Mandible Implant full-mouth implant restoration
Monolithic ceramic or hybrid-acrylic restoration
at least12 months Follow-up
Heavy bruxists
Trial population
Control Group: Healthy Patients, Dentate Experimental Groups : Patients from a dental office that did a full-mouth (maxilla or mandible) implant-supported rehabilitation and made the final rehabilitation in either monolithic zirconia or hybrid-acrylic material
Trial design
Design model
Case-control
Time perspective
Prospective
Treatments tested in this trial
Monolithic Zirconia
DeviceMaxillary or/and mandibular screw retained zirconia monolithic prostheses supported by at least 4 implants
Hybrid-Acrylic
DeviceMaxillary or/and mandibular screw retained hybrid prostheses supported by at least 4 implants;
Dentate Patients
BehavioralDentate Patients with natural dentition or tooth supported crowns
Treatment groups
36 Participants
are divided into 3 treatment groupsGroup A: Dentate Patients1 intervention
Group B: Zirconia1 intervention
Group C: Hybrid Acrylic1 intervention
Trial outcomes
Primary outcomes
1
Wear of teeth and materials of restorations
Measure in different groups occlusal tooth wear from insertion (baseline) to 4, 8 and 12 months post-insertion Scanned images will be compared using a metrology software to determine maximum vertical wear of teeth and root mean square wear.
Time frame
at least 12 months follow-upSecondary outcomes
1
Wear of different antagonists
Measure occlusal tooth wear of antagonists from insertion (baseline) to 4, 8 and 12 months post-insertion Scanned images will be compared using a metrology software to determine maximum vertical wear of teeth and root mean square wear.
Time frame
at least 12 months follow-upSponsors and contacts
Click on the lead sponsor to view all of their trials.
Source ClinicalTrials.gov