Effect of Implant Surface Material and Topography on Bone Regeneration.

Summary

Dental implants have been on the market for several years and they are routinely used to replace single/multiple missing teeth with a high success rate. However, there is still a limited number of studies comparing hydrophilic titanium and zirconia implants. In addition, there is no data available on the signalling pathways and the expression of healing biomarkers involved in the early stages of osseointegration around zirconia surface implants placed with guided bone regeneration (GBR).

This study aims 1) to describe and compare the early wound healing molecular pathways, and the 2) vascularization patterns of mucosal tissues after the placement of hydrophilic titanium or zirconia implants with simultaneous guided bone regeneration (GBR).

In this study, the investigators will assess the expression of inflammatory, angiogenesis and osseous biomarkers of PICF at 3, 7, 15 and 30 days after the placement of hydrophilic titanium or zirconia dental implants with simultaneous GBR and of saliva at day 1, 3, 7, 15 and 30.

Conditions

• Dental Implant
• Guided Bone Regeneration
• Biomarkers
• Saliva

Interventions

COMBINATION_PRODUCT

Zirconia surface implant and guided bone regeneration

The Straumann® PURE Ceramic Implant System is made from 100 % yttria-stabilized zirconia. Its surface features a topography characterized by macro- and micro-roughness to offer a structure for cell attachment and the osseointegration of this surface has been successfully proven. Owing to the increasing aesthetic standards in the field of implant dentistry and the concerns on sensitivity to titanium, there has been a growing interest towards metal-free implant rehabilitation. Guided bone regeneration (GBR) will be performed simultaneously with the implant placement with the aim to re-establish the bone contour. A bovine osteoconductive graft (Bio-Oss collagen®, Geistlich, Wolhusen, Switzerland) will be placed on the buccal aspect of the implant and covered with a collagen membrane (Bio-Gide®, Geistlich, Wolhusen, Switzerland).

COMBINATION_PRODUCT

Hydrophilic titanium surface implant and guided bone regeneration

The Straumann® Standard Plus (SP) Implant is a Soft Tissue Level Implant with a smooth neck section of 1.8 mm. It has a fundamentally improved hydrophilic surface chemistry (SLActive®) which accelerates the osseointegration process in the early healing phase. Guided bone regeneration (GBR) will be performed simultaneously with the implant placement with the aim to re-establish the bone contour. A bovine osteoconductive graft (Bio-Oss collagen®, Geistlich, Wolhusen, Switzerland) will be placed on the buccal aspect of the implant and covered with a collagen membrane (Bio-Gide®, Geistlich, Wolhusen, Switzerland).

Sponsors & Collaborators

• University of Zurich

  collaborator OTHER

• Queen Mary University of London

  lead OTHER

Principal Investigators

• Nikolaos Donos · QMUL

Study Design

Allocation

RANDOMIZED

Purpose

OTHER

Masking

SINGLE

Model

PARALLEL

Eligibility

Min Age

25 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2023-12-01

Primary Completion

2025-01-27

Completion

2025-01-27

Countries

• United Kingdom

Study Locations