Peri-implantitis is an inflammatory disease that results in the destruction of soft tissue and bone around the implant. Titanium implant corrosion has been attributed to the implant failure and cytotoxic effects to the alveolar bone. We have documented the extent of titanium release into surrounding plaque in patients with and without peri-implantitis. An in vitro model was designed to represen...

PURPOSE Zirconia (ZrO₂) and titanium nitride (TiN) implant abutments were introduced mainly for esthetic purposes, as titanium's gray color can be visible through mucosal tissues. This study was aimed at assessing whether ZrO₂ and TiN abutments could achieve better esthetics in comparison with titanium (Ti) abutments, regarding the appearance of soft tissues. MATERIALS AND METHODS Ninety pati...

BACKGROUND Sternal dehiscence is one of the most troublesome complications following cardiac surgery. Treatment failure and consequent lethal outcomes are very common. The aim of this study was to evaluate titanium plate fixation as a treatment for sternal dehiscence following major cardiac surgery. MATERIALS AND METHODS Between 2010 and 2012, 17 patients underwent sternal reconstruction usin...

Highlights A novel NdFeB-Fe 3 O 4 magnetic photosensitive resin comprising 20 wt.% solid loading of particles is developed to fabricate high-precision and ferromagnetic functional devices via micro-continuous liquid interface production ( ? CLIP) process. penetration depth model established reveals the effect particle size, loading, absorbance on curing characteristics resin. Optimized (NdFeB:F...

Anatase titanium dioxide nanoparticles (TiO2-NPs) were synthesized by sol-gel method using rice straw as a soft biotemplate. Rice straw, as a lignocellulosic waste material, is a biomass feedstock which is globally produced in high rate and could be utilized in an innovative approach to manufacture a value-added product. Rice straw as a reliable biotemplate has been used in the sol-gel method t...

BACKGROUND The aim of the present study is a comparative evaluation of inflammatory infiltrate, microvessel density, vascular endothelial growth factor, nitric oxide synthase, and proliferative activity in soft tissues below intraorally welded titanium bars. METHODS Twenty-two patients participated in this study. All patients carried immediately loaded one-stage titanium implants splinted wit...

In the upper jaw, a cross-arch implant-supported fixed restoration was delivered. In the lower jaw, an implant-supported fixed partial prosthesis was provided, retaining some natural dentition, which increased the risk of a periodontal reservoir. Treatment included multiple extractions and submerged implants. Implant survival rate, patient satisfaction, marginal bone maintenance and soft-tissue...

OBJECTIVE The aim of the present study was to analyze the soft tissue barrier formed to implant abutments made of different materials. MATERIAL AND METHODS Six Labrador dogs, about 1 year old, were used. All mandibular premolars and the first, second and third maxillary premolars were extracted. Three months later four implants (OsseoSpeed, 4.5 x 9 mm, Astra Tech Dental, Mölndal, Sweden) were...

A 70-year-old man with an uncemented metal-on-polyethylene total hip prosthesis underwent revision arthroplasty 33 months later because of pain, swelling and recurrent dislocation. There appeared to be corrosion and metal release from the prosthetic head, resulting in pseudotumour formation and severe local soft-tissue destruction. The corrosion occurred at the junction between the titanium-mol...

An extremely strong mechanical bond between cement and bone was observed in three patients with cemented hip protheses who underwent revision operations. The nature of the bone--cement attachment was studied by electron microscopy. The tissue at the interface was found to be made up of viable bone alternating with areas of soft tissue containing macrophages. The important qualitative difference...