This article presents a novel technique for developing a master cast for two implants which are clinically placed convergent and very close to each other. The technique consists of making an implant level impression using a transfer coping for the posterior implant. Then fabricate a positional index intraorally, which contains a registration of the second transfer coping, the healing abutment reattached from the transfer in the impression and the adjacent teeth. The master cast is altered, using this positional index to incorporate the second implant analog.
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Bioengineering (Basel)
January 2025
Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University of Chieti-Pescara, 66100 Chieti, Italy.
This study aimed to evaluate the biomechanical performance of two truncated cone implant designs in maxillary sinus lift (MSL) procedures using polyurethane laminas. A total of 128 implants were used. Polyurethane laminas were divided into two groups based on thickness (1 and 3 mm) and two subgroups based on density (20 and 30 pounds per cubic foot, PCF).
View Article and Find Full Text PDFArch Orthop Trauma Surg
January 2025
BG Klinikum Unfallkrankenhaus Berlin, Department of Hand-, Replantation- and Microsurgery and Chair of Hand-, Replantation- and Microsurgery, Charité Universitätsmedizin Berlin, Berlin, Germany.
Introduction: Rhizarthrosis, or osteoarthritis of the trapeziometacarpal joint, predominantly affects women over 50, with up to 30% experiencing some degree of arthritis in this joint. Traditional surgical approaches, such as trapeziectomy with ligament reconstruction, can result in some patients in persistent pain or limited functionality. TMC ball-in-socket arthroplasty, with a cup placed in the distal scaphoid, offers a promising alternative to traditional arthrodesis or resection-suspension arthroplasty.
View Article and Find Full Text PDFSwiss Dent J
January 2025
Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland.
Due to effective preventive measures and advanced techniques in operative dentistry, tooth loss occurs later in life and implant restorations have become a common solution for replacement of missing teeth. Therefore, the use of removable dental prostheses (RDPs) is expected to decline over time. This study aims to evaluate the expected decrease in the production of RDPs in Swiss dental laboratories over the past decade.
View Article and Find Full Text PDFACS Appl Mater Interfaces
January 2025
Institute of Materials Science and Engineering, Chemnitz University of Technology, Erfenschlager Straße 73, Chemnitz 09125, Germany.
The generation of laser-induced periodic surface structures (LIPSS) using femtosecond lasers facilitates the engineering of material surfaces with tailored functional properties. Numerous aspects of their complex formation process are still under debate, despite intensive theoretical and experimental research in recent decades. This particularly concerns the challenge of verifying approaches based on electromagnetic effects or hydrodynamic processes by experiment.
View Article and Find Full Text PDFHum Reprod
December 2024
IVIRMA Global Research Alliance, IVI Foundation, Health Research Institute La Fe, Valencia, Spain.
Study Question: Is it possible to predict an euploid chromosomal constitution and identify a transcriptomic profile compatible with extended embryonic development from RNA sequencing (RNA-Seq) data?
Summary Answer: It has been possible to obtain a karyotype comparable to preimplantation genetic testing for aneuploidy (PGT-A), in addition to a transcriptomic signature of embryos which might be suggestive of improved implantation capacity.
What Is Known Already: Conventional assessment of embryo competence, based on morphology and morphokinetic, lacks knowledge of molecular aspects and faces controversy in predicting ploidy status. Understanding the embryonic transcriptome is crucial, as gene expression influences development and implantation.
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