Immediate Implant Placement in the Molar Regions

University of Aarhus

Status and phase: Completed; Early Phase 1

Conditions: Periodontitis; Dental Caries; Periapical Periodontitis

Treatments: Procedure: Use of membrane and bonechips to manage defects; Procedure: Use of a membrane to cover bonedefects around implant; Device: Use of bonechips to fill up defects around implant

Study type: Interventional

Funder types: Other

Identifiers

NCT00226148

22-04-0281

2005/0091

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 92 patients

Sex: All

Ages: 18+ years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Single Group Assignment

Masking: None (Open label)