NCT01522365

Brief Summary

This study has been designed in order to collect data with regards to the peri-implant tissue outcome of abutment-supported restoration and direct implant-fixed restoration. Therefore a small group of subjects with partly edentulous maxilla is selected to show that both techniques are efficient and safe and to show comparable peri-implant tissue outcome for both methods. At the time of impression forming for each centre treatment A (= abutment-supported XiVE® CAD/CAM supra-structure) and B (= direct implant-fixed XiVE® CAD/CAM supra-structure) is assigned to the left and right side of the maxilla by being randomized at the time of impression forming.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Oct 2010

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 7, 2010

Completed
1.3 years until next milestone

First Submitted

Initial submission to the registry

January 23, 2012

Completed
8 days until next milestone

First Posted

Study publicly available on registry

January 31, 2012

Completed
5.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 8, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 8, 2017

Completed
5.1 years until next milestone

Results Posted

Study results publicly available

September 13, 2022

Completed
Last Updated

September 13, 2022

Status Verified

August 1, 2022

Enrollment Period

6.8 years

First QC Date

January 23, 2012

Results QC Date

March 25, 2022

Last Update Submit

August 18, 2022

Conditions

Keywords

Dental implantsXiVE CAD/CAM bridge

Outcome Measures

Primary Outcomes (1)

  • Mean Change of Bone Level

    Intra-oral radiographs from implant insertion and at time for prosthesis insertion as well as from 1 and 2-year follow-up visits (calculated from the time of loading) should be taken for evaluation of bone level. All radiographs will be examined by an independent dentist. For the purpose of this examination XCP film holder (DENTSPLY Rinn, 1212 Abbott Drive, Elgin, Illinois 60123-1819, USA) are individualized for each subject and for each x-ray.

    0, 12, 24 months

Secondary Outcomes (1)

  • Sulcus-fluid-flow-rate

    6 weeks, 6, 12, 24 months

Study Arms (2)

Abutment-supported XiVE CAD/CAM bridge

ACTIVE COMPARATOR

After randomization one side of the jaw will be provided with a XiVE CAD/CAM bridge placed on an abutment.

Device: Abutment-supported XiVE CAD/CAM bridge

Implant-supported XiVE CAD/CAM bridge

ACTIVE COMPARATOR

After randomization one side of the jaw will be provided with a XiVE CAD/CAM bridge placed directly on an implant.

Device: Implant-supported XiVE CAD/CAM bridge

Interventions

One side will be provided with a XiVE CAD/CAM bridge placed directly on an abutment

Abutment-supported XiVE CAD/CAM bridge

One side will be provided with a XiVE CAD/CAM bridge fixed directly on the implant

Implant-supported XiVE CAD/CAM bridge

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subject \> 18 years.
  • Female subject of child-bearing potential must use reliable methods of contraception.
  • Subject has partly edentulous maxilla (free-end or large gap in posterior area on both sides).
  • For all implants immobility and clear percussion sound is applicable.
  • The subject is healthy and compliant with good oral hygiene.
  • Favorable and stable occlusal relationship between the remaining teeth.
  • Subject must be reliable, cooperative, and in the opinion of the Investigator, likely to be compliant with study procedures.
  • Subject provides written informed consent signed and dated prior to entering the study.
  • Implantation of XiVE® implants at least 3 months ago.
  • XiVE® implants have been placed primary stable by considering sufficient horizontal and vertical bone dimension.

You may not qualify if:

  • Subject has a history of drug abuse, addiction to medication or alcohol abuse within the previous year.
  • Subject with planned or performed head and neck radiation.
  • Known unavailability of subject for FU Visit(s).
  • Subject has - in the opinion of the investigator - any systemic metabolic disorder or bone disorder or is taking medication that compromises or might have compromised post-operative tissue regeneration or osseointegration.
  • Subject has major bone defects in the implantation area.
  • Subject is taking medication that compromises or might have compromised post-operative healing and/or osseointegration (e. g. bisphosphonates).
  • Subject exhibits an oral infection.
  • Subject has received any investigational drug within 30 days prior to screening.
  • Severe bruxing.
  • Subject has a clinically significant or unstable medical or physiological condition.
  • Female subject is pregnant or lactating or intends to become pregnant during the course of the study.
  • Subject is not willing to participate in the study or not able to understand the content of the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Birmingham, School of dentistry

Birmingham, B4 6NN, United Kingdom

Location

Results Point of Contact

Title
Director Center of Clinical Research, AnnaKarin Lundgren
Organization
Dentsply Sirona Implants

Study Officials

  • Manfred Wichmann, Prof. Dr.

    Erlangen University Hospital

    PRINCIPAL INVESTIGATOR
  • Thomas Dietrich, Prof. Dr. Dr.

    Birmingham University, School of Dentistry

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
LTE60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Split-mouth design, i.e. each subject have both treatment arms.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 23, 2012

First Posted

January 31, 2012

Study Start

October 7, 2010

Primary Completion

August 8, 2017

Study Completion

August 8, 2017

Last Updated

September 13, 2022

Results First Posted

September 13, 2022

Record last verified: 2022-08

Data Sharing

IPD Sharing
Will not share

Locations