One-Piece Monolithic Zirconia Single Tooth Implant-Supported Restorations in the Posterior Region: A 1-Year Prospective Case Series Study.

Objective: To assess the clinical, radiographic and patient-reported outcome measures, and the success of screw-retained one-piece monolithic zirconia implant-supported restorations in the posterior region during a 1-year follow-up.

Methods: In a prospective case series, 50 single molar sites in the posterior region of 41 patients with a minimum age of 18 years and sufficient bone volume for placing an implant (≥ 8 mm) and space for an anatomical restoration were included. Following prosthetic-driven digital three-dimensional treatment planning, a tissue-level implant with an internal connection was inserted during a one-stage surgical procedure.

Metal-Free Custom-Made Zirconia Implants-A Prospective 5-Year Follow-Up Single-Arm Clinical Trial.

Background: Dental implants made of zirconia (ZrO) are a potential alternative for titanium implants in dentistry because of their good biocompatibility, mechanical properties and excellent aesthetic results. However, solid long-term scientific data to prove clinical success of ZrO implants are scarce.

Aim: The aim of this study was to describe and to examine the clinical performance of custom-made two-piece ZrO implants, to identify possible influencing factors: a) manipulation of the implant after placement and b) the occlusal scheme on the survival rate, and to evaluate the performance of the implant-supported crown.

Outcomes of implants placed in sites of previously failed implants: a systematic review and meta-analysis.

The survival rate of implants placed at sites of previous failures including the best treatment strategies remain unclear. This systematic review was performed to assess implant survival and peri-implant health for such cases, including subgroup analyses of immediate versus delayed implant placement and augmentation. Four electronic databases were searched.

First detection of industrial hydrogen emissions using high precision mobile measurements in ambient air.

Projections towards 2050 of the global hydrogen (H) demand indicate an eight-fold increase in present-day hydrogen consumption. Leakage during production, transport, and consumption therefore presents a large potential for increases in the atmospheric hydrogen burden. Although not a greenhouse gas itself, hydrogen has important indirect climate effects, and the Global Warming Potential of H is estimated to be 12.