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An Osteotomy Tool That Preserves Bone Viability: Evaluation in Preclinical and Clinical Settings.

ABSTRACT: The main objectives of this work were to assess the efficiency, ease-of-use, and general performance of a novel osseoshaping tool based on first-user clinical experiences and to compare these observations with preclinical data generated in rodents using a miniaturized version of the instrument. All patients selected for the surgery presented challenging clinical conditions in terms of the quality and/or quantity of the available bone. The presented data were collected during the implant placement of 15 implants in 7 patients, and included implant recipient site (bone quality and quantity) and ridge evaluation, intra-operative handling of the novel instrument, and the evaluation of subsequent implant insertion. The instrument was easy to handle and was applied without any complications during the surgical procedure. Its use obviated the need for multiple drills and enabled adequate insertion torque in all cases. This biologically driven innovation in implant site preparation shows improvements in preserving vital anatomical and cellular structures as well as simplifying the surgical protocol with excellent ease-of-use and handling properties.

SUBMITTER: Bahat O

PROVIDER: S-EPMC9103213 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature

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An Osteotomy Tool That Preserves Bone Viability: Evaluation in Preclinical and Clinical Settings.

Bahat Oded O Yin Xing X Holst Stefan S Zabalegui Ion I Berroeta Eva E Pérez Javier J Wöhrle Peter P Sörgel Norbert N Brunski John J Helms Jill A JA

Journal of clinical medicine 20220430 9

The main objectives of this work were to assess the efficiency, ease-of-use, and general performance of a novel osseoshaping tool based on first-user clinical experiences and to compare these observations with preclinical data generated in rodents using a miniaturized version of the instrument. All patients selected for the surgery presented challenging clinical conditions in terms of the quality and/or quantity of the available bone. The presented data were collected during the implant placemen ...[more]

PMID: 35566662

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Project description:Mucormycosis is an increasingly common, life-threatening fungal infection caused by fungi belonging to the subphylum Mucormycotina, order Mucorales. The major risk factors for mucormycosis include uncontrolled diabetes mellitus, treatment with corticosteroids, organ or bone marrow transplantation, neutropenia, trauma and burns, malignant hematological disorders, and deferoxamine-therapy in patients receiving hemodialysis. Amphotericin B (AmB) remains the only antifungal agent approved for the treatment of invasive mucormycosis. Because fungi belonging to the mucorales order are relatively resistant to AmB, high doses are required, which frequently causes nephrotoxicity and other adverse effects. In the absence of surgical removal of the infected focus (such as excision of the eye in patients with rhinocerebral mucormycosis), antifungal therapy alone is rarely curative. Even when surgical debridement is combined with high-dose AmB, the mortality associated with mucor¬mycosis is >50%. In patients with prolonged neutropenia or disseminated disease, mortality is 90-100%. Rhizopus oryzae is by far the most common organism isolated from patients with mucormycosis, and is responsible for approximately 70% of all cases of mucormycosis. Recent epidemiological data collected from transplant centers have demonstrated a striking increase in the number of reported cases of mucormycosis. Furthermore, mucormycosis outbreaks are also known to follow natural disasters as was the case following the tsunami that devastated Indonesia in 2004 and the tornadoes that destroyed Joplin, Missouri in June 2011. Hence, there exists a large impetus to identify particular virulence factors and biomarkers associated with mucormycosis, which would lead to a rational approach to develop new antifungals and vaccines to prevent deaths specifically due to mucormycosis. In order to better understand the complex nature of the host pathogen interaction during mucormycosis, we performed dual species RNA-seq on 5 different Mucorales strains during in vitro infection of endothelial or epithelial cells.

Dataset Information

An Osteotomy Tool That Preserves Bone Viability: Evaluation in Preclinical and Clinical Settings.

Publications

An Osteotomy Tool That Preserves Bone Viability: Evaluation in Preclinical and Clinical Settings.

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