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Immediate Implant Placement in the Molar Regions

This study has been completed.
Sponsor:
Collaborator:
The Danish Medical Research Council
Information provided by:
University of Aarhus
ClinicalTrials.gov Identifier:
NCT00226148
First received: September 23, 2005
Last updated: September 8, 2009
Last verified: September 2009

September 23, 2005
September 8, 2009
September 2005
September 2009   (final data collection date for primary outcome measure)
Digitial radiography of the implants at placement, 3 month, 6 month, at abutmentoperation, at crownplacement, 3 month after crownplacement and 6 month after crownplacement. [ Time Frame: see above ] [ Designated as safety issue: No ]
Digitial radiography of the implants at placement, 3 month, 6 month, at abutmentoperation, at crownplacement, 3 month after crownplacement and 6 month after crownplacement.
Complete list of historical versions of study NCT00226148 on ClinicalTrials.gov Archive Site
Not Provided
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Immediate Implant Placement in the Molar Regions
Immediate Implant Placement in the Molar Regions

The purpose of this study is to look at the bonehealing when a molar has been extracted and immediately replaced by an implant leaving some defects around the implant.

The defects are being treated in three different with the hypothesis that the three ways of treatment result in equal bonehealing.

This study is a randomized clinically controlled study with three group of each thirty patients, where the bonehealing after immediate implantplacement in molarregions is being investigated.

Totally 90 patients are going to get a molar tooth extracted and immediately replaced with an implant (Brånemark System, Wide Platform). The molar tooth should be in such a condition that is has to be extracted.

Extracting a molar leaves a defect which cannot completely be filled out by an implant. The 90 patients are therefore randomised into 3 groups according to how the perimarginal bonedefects around the placed implants are being treated: 1. Bonechips 2. Membrane 3. Bonechips+Membrane. The bonehealing of the defects around the implants are then compared the groups in between. The amount of newly formed bone is being estimated too by digital radiography and subtractionradiography. Furthermore the prognosis for immediate placed implants in molar regions in relation to the method of defectreconstruction one year after crown delivery is also being investigated. All the investigations are conducted with the Ho-hypothesis that there is no difference in the bonehealing the three groups in between.

Interventional
Phase 0
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
  • Periodontitis
  • Dental Caries
  • Periapical Periodontitis
  • Procedure: Use of a membrane to cover bonedefects around implant
  • Device: Use of bonechips to fill up defects around implant
  • Procedure: Use of membrane and bonechips to manage defects
Not Provided
Urban T, Kostopoulos L, Wenzel A. Immediate implant placement in molar regions: a 12-month prospective, randomized follow-up study. Clin Oral Implants Res. 2012 Dec;23(12):1389-97. doi: 10.1111/j.1600-0501.2011.02319.x. Epub 2011 Nov 25.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
92
September 2009
September 2009   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • A molar tooth which has to be extracted
  • Healthy persons with only mild systemic disease with no functional limitation

Exclusion Criteria:

  • Pregnant
  • Any disease that is influencing the turnover of bone or oral mucosa
Both
18 Years and older
Yes
Contact information is only displayed when the study is recruiting subjects
Denmark
 
NCT00226148
2005/0091, 22-04-0281
No
Thomas Urban, Dental School, Aarhus University
University of Aarhus
The Danish Medical Research Council
Study Chair: Ann Wenzel, Prof.Dr.Odont, Ph.d.,DDS The Royal Dental College of Aarhus
University of Aarhus
September 2009

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP