An observational study in Wear, Tooth, Dental Prosthesis Complication and Wear, Occlusal, sponsored by Implantology Institute. Recruiting at 1 site in Portugal. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2024-07-26.
Sponsored by Implantology Institute · Observational
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.
It will be our intention to perform a prospective study and proof-of-concept to assess wear in natural dentition, Full arch implant supported rehabilitation (FAISR) and opposing arches. Wear according to type of rehabilitation and of opposing arch, technical complications, parafunction and number of placed implants will be assessed.
Intra-oral digital acquisition will be performed at pre-defined intervals. Changes over time will be assessed through a previously described digital superimposition methodology volumetric changes determined.
Patients will be scanned using an intraoral dental scanner (T0)
Patients will be recalled at every 4-months (T1), 8-months (T2) and 12-months (T3) visits for re-scanning and from there every 6-months
Scanned images will be compared using a metrology software to determine maximum vertical wear of teeth and root mean square wear.
14 studies on the registry are indexed under Tooth Attrition; 5 are open to participants now.
Browse Tooth Attrition studies →Implantology Institute is the lead sponsor of 17 studies on the registry; 6 are open to participants now.
Compared within Tooth Attrition, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Tooth Wear. The counts are of registry records indexed under each term, refreshed daily. How we classify →
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
Dentate Group :
Inclusion criteria
Exclusion criteria
Edentulous Group:
Inclusion Criteria:
Exclusion Criteria:
Patients with natural dentition - maxilla and mandible
Behavioral: Dentate Patients
Patients that have a full-mouth (maxilla or mandible) dental implant supported rehabilitation restored with monolithic zirconia biomaterial
Device: Monolithic Zirconia
Patients that have a full-mouth (maxilla or mandible) dental implant supported rehabilitation restored with acrylic material (hybrid acrylic)
Device: Hybrid-Acrylic
Maxillary or/and mandibular screw retained zirconia monolithic prostheses supported by at least 4 implants
Maxillary or/and mandibular screw retained hybrid prostheses supported by at least 4 implants;
Dentate Patients with natural dentition or tooth supported crowns
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-up
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-up
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
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Implantology Institute