Retrospective Study on Clinical Performance of Screw-retained Implant Crowns

University of Bern32 enrolled

Overview

Survival and success rates of all-ceramic implant-supported fixed reconstructions fabricated with CAD/CAM technology after at least one year in function. Survival and success rates (clinical, radiologic and esthetic) of all-ceramic implant-supported fixed reconstructions fabricated with CAD/CAM technology after 2 to 10 years in function. Establishment of a database of patients with all-ceramic implant-supported fixed reconstructions fabricated with CAD/CAM technology for future longitudinal retrospective studies.

Study Type

INTERVENTIONAL

Allocation

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Dental Implant Failed

Interventions

Dental prostheticsOTHER

Implant-supported crowns

Eligibility

Sex: ALLMin age: 18 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Patients with at least one fixed all-ceramic reconstruction (single implant restoration on BL implant with individualized zirconia abutment directly screwed and directly veneered, three- to five-unit zirconia bridges directly veneered, single tooth crown made of a lithium disilicate glass-ceramic (LS2) blank) * Written informed consent Exclusion Criteria: * Pregnancy at the time of the follow-up examination * Mental handicap * Patients that could not be contacted/located * Patients not interested in participating * Patients with the need of antibiotic prophylaxis prior to a clinical examination

Locations (1)

University of Bern

Bern, Switzerland

Outcomes

Primary Outcomes

Survival and success rates of all-ceramic implant-supported fixed reconstructions

Number of all-ceramic implant-supported fixed reconstructions fabricated with CAD/CAM technology still in place after at least one year in function.

Time frame: 1 year

Secondary Outcomes

Number of patients with biological complications assessed via clinical examination

A clinical evaluation of the implant crowns will be performed in order to detect any kind of biological complication, namely periimplantitis and perimucositis

Time frame: 1 year

Number of patients with biological complications assessed via periapical x-ray

A radiological evaluation of the implant crowns will be performed to measure and evaluate the bone crestal changes

Time frame: 1 year

Number of patients with technical complications

A clinical evaluation of the implant crowns will be performed in order to detect any kind of complication, namely chipping, screw loosening or abutment fracture

Time frame: 1 year

Patient satisfaction as assessed by VAS A

Patients assess by patient questionnaire their implant reconstructions, in terms of function by means of a Visual Analog Scale (VAS A), where the parameter will be scored from 1 to 10.

Time frame: 1 year

Patient satisfaction as assessed by VAS B

Patients assess by patient questionnaire their implant reconstructions, in terms of esthetics by means of a Visual Analog Scale (VAS B), where the parameter will be scored from 1 to 10.

Time frame: 1 year

Data from ClinicalTrials.gov

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