Decontamination of probes

OBJECTIVE: The main objective of this study aimed to evaluate the response to treatment in implants with peri-implantitis regarding the presence or absence of keratinized mucosa. MATERIALS AND METHODS: One hundred implants with peri-implantitis were treated non-surgically at the Prosthodontics and Occlusion Teaching Unit of the University of Valencia. Records were registered at day zero (recession, bleeding on probing, suppuration, probing depth, bone loss and plaque index), at 1, 3 and 6 months...

The COVID-19 pandemic resulted in imminent shortages of personal protective equipment such as face masks. To address the shortage, new sterilization or decontamination procedures for masks are quickly being developed and employed. Dry heat and steam sterilization processes are easily scalable and allow treatment of large sample sizes, thus potentially presenting fast and efficient decontamination routes, which could significantly ease the rapidly increasing need for protective masks globally during a pandemic like COVID-19...

INTRODUCTION: Moderate chronic periodontitis is the most common periodontal disease. The treatment of this condition should aim at achieving a biocompatible root surface and decontamination of the pocket, thereby restoring the health status. AIM: In the present study, the aim was to examine the clinical effectiveness of fibreless Er:YAG laser used for scaling and root planing and to compare it with a conventional treatment with Gracey curettes. MATERIALS AND METHODS: The study included 909 periodontal pockets which were treated in a split-mouth design with either Gracey curettes or with Er:YAG laser (1...

The present work studied ibuprofen degradation using titanium dioxide as a photocatalyst. Mechanistic aspects were presented and the preferred attack sites by the OH˙ radical on the ibuprofen molecule were detailed, based on experimental and simple theoretical-computational results. Although some previous studies show mechanistic proposals, some aspects still need to be investigated, such as the participation of 4-isobutylacetophenone in the ibuprofen degradation and the preferred regions of attack by OH˙ radicals...

There are more than 160 defined nontuberculous mycobacteria (NTM) species within Mycobacterium genus. In recent years, the number of NTM species associated with human infections and the infections caused by them have been reported at increasing rates. The identification of these species by phenotypic methods is difficult, laborious, and unlikely to obtain reliable results. Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) MALDI-TOF MS has proven to be a good method for the identification of bacteria and yeasts in routine laboratory practices...

The activation of peroxymonosulfate (PMS) by Fe(II) or Fe(III) for environmental decontamination is severely limited by the low conversion rate from Fe(III) to Fe(II). Here, we found that this puzzling problem could virtually be solved by introducing trace amounts of S2- . With the addition of 0.2 mM S2- , the bisphenol A (BPA) degradation efficiency and total organic carbon (TOC) removal in PMS/Fe(III) system were improved by 3.8 and 6.0 times, respectively. Meanwhile, the kobs and PMS utilization efficiency also markedly increased by 650% and 160%, respectively...

Background and Objectives : Peri-implantitis treatment is still undefined. Regenerative treatment is expensive and technically demanding due to the need to handle biomaterials, membranes and different methodologies of decontamination. Resective treatment and implantoplasty might be a viable solution. This case series presents a 24 month retrospective observational study of 10 peri-implantitis patients treated with implantoplasty. Materials and Methods : In the present case series, 10 peri-implantitis patients (20 implants) were treated with a resective approach and implantoplasty...

This case series retrospectively investigated the one-year surgical outcome of regenerative peri-implantitis therapy using a hydroxyapatite (HA) bone substitute material in combination with enamel matrix derivate (EMD) and collagen membrane for guided bone regeneration (GBR). Data-sheets of patients were screened to detect patients who received identical regenerative peri implantitis-therapy with surface decontamination and GBR applying HA, EMD and a collagen membrane under broad- spectrum antibiotic regime...

A systematic review of seven studies on infections related to contaminated ultrasound probes showed that the infections were related to a failure in the decontamination process of ultrasound devices used on immature skin of neonates in an intensive care unit and transesophageal echocardiography probes. Six of the studies involved outbreaks in patients who underwent transesophageal echocardiography either during or after surgery or as a part of treatment for a nonsurgical cardiac condition. The evidence shows links between the infection outbreaks and environmental contamination, lack of standardized ultrasound probe disinfection processes, inadequate storage, and lack of monitoring of probe integrity...

A versatile, functional nanomaterial for the removal of ionic and non-ionic pollutants is presented in this work. For that purpose, the high charge mica Na-4-Mica was exchanged with the cationic surfactant (C16 H33 NH(CH3 )2 )+ . The intercalation of the tertiary amine in the swellable nano-clay provides the optimal hydrophilic/hydrophobic nature in the bidimensional galleries of the nanomaterial responsible for the dual functionality. The organo-mica, made by functionalization with C16 H33 NH3 + , was also synthesized for comparison purposes...

BACKGROUND AND AIMS: Peri-implantitis is a complex pathology, both in its diagnosis and in the identification of etiological causes. Although we have been studying more and more over the years to try to answer the many questions that remain regarding everything that circulates around this disease which affects implants, nothing has yet been taken as an official consensus regarding its surgical treatment. There are still many proposed protocols, each of which has been shown to have comforting results and promising prospects, but no total predictability...

Perovskites (the general formula of ABO3 ) with versatile substrates can serve as desirable catalysts to initiate advanced oxidation processes (AOPs) for environmental remediation. However, the knowledge regarding the active centers remains piecemeal and unclear, such as how the redox metal centers of B site, inert metals of A site, oxygen vacancies, and direct oxidation of catalysts govern the chemical degradation of aqueous pollutants. This study aimed to identify principal alternations in physicochemical and electrical properties of ABO3 -based perovskites modified with partial/overall substitution at A/B sites and synthesized at different conditions...

The presence of diverse pollutants in water has been threating human health and aquatic ecosystems on a global scale. For more than a century, chemical oxidation using strongly oxidizing species was one of the most effective technologies to destruct pollutants and to ensure a safe and clean water supply. However, the removal of increasing amount of pollutants with higher structural complexity, especially the emerging micropollutants with trace concentrations in the complicated water matrix, requires excessive dosage of oxidant and/or energy input, resulting in a low cost-effectiveness and possible secondary pollution...

The influence of the charge compensating cation nature (Na+ , Mg2+ ) on the water adsorption properties of LTA-type zeolites used as filler in composite materials (zeolite/polymers) was investigated. Large scale cation exchanges were performed on zeolite powder at 80 °C for 2 h using 1 M magnesium chloride (MgCl2 ) aqueous solutions. XRF, ICP, and EDX analyses indicate a successful cationic exchange process without the modification of the zeolite structure as shown by XRD and solid-state NMR analyses. Composite materials (granulates and molded parts) were manufactured using to extrusion and injection processes...

BACKGROUND: the prognosis of peri-implant surgery can be affected by poor decontamination of the implant surface, which could be improved with the use of titanium brushes. The objectives of this systematic review were to evaluate the effectiveness of titanium brushes in the decontamination of the implant surface in terms of plaque index, probing depth, bleeding on probing and bone loss/gain; as well as its effectiveness according to the type of peri-implant bone defect. METHODS: an electronic search was carried out in the PubMed, Scopus, Cochrane and Embase databases, as well as a manual search...

Cage washing is a key process of the biosecurity program in rodent facilities. For the current study, we developed systems (i. e., magnet attachments, quantitative biologic indicators (Q-BI), and measurement of thermal disinfection at equipment level) to assess the microbial decontamination achieved by a rodent equipment washer with and without thermal disinfection. 99% of the magnets remained in position to hold Q-BI and temperature probes inside cages, water bottles or at equipment level across a cabinet washer chamber with loads dedicated to either housing or drinking devices...

OBJECTIVES: Evaluate in a case series the clinical applicability of a regenerative approach for treatment of peri-implant lesions based on papilla preservation flaps (PPF) and minimally invasive surgery (MIST). MATERIAL AND METHODS: Twenty-one deep peri-implant defects in 21 patients were surgically accessed applying PPF and MIST. The exposed implant surface was decontaminated with the sequential application of mechanical devices and chemical agents. Bone substitutes alone or in combination with a collagen barrier were applied, according to the anatomy of the peri-implant lesion...

BACKGROUND: Peri-implantitis is a pathological condition characterized by an inflammatory process involving soft and hard tissues surrounding dental implants. The management of peri-implant disease has several protocols, among which is the chemical method HYBENX® . The aim of this study is to demonstrate the efficacy of HYBENX® in the treatment of peri-implantitis and to compare HYBENX® with other chemical agents used in the surgical treatment of peri-implantitis. METHODS: The present study included a population of ten subjects with severe peri-implantitis...

OBJECTIVES: To compare surgical (ST) and non-surgical (NST) debridement for the treatment of peri-implantitis in a two-center randomized trial. MATERIALS AND METHODS: Forty-five individuals with 63 implants with probing depth (PPD) ≥5mm, bleeding on probing (BOP), and radiographic bone loss ≥2mm were included. In the NST (30 implants), submucosal debridement was performed. In the ST (33 implants), a mucoperiosteal flap was raised and surfaces were decontaminated only by debridement as performed in NST...

In recent years, the activation of persulfates (peroxydisulfate (PDS) and peroxymonosulfate (PMS)) via transition metal ions for contaminants degradation has received extensive attention in water treatment. There has been growing interest on the mechanism (radical versus non-radical pathway) of activation processes. Interestingly, in contrast to copper, iron or cobalt ions regarded as effective activators for persulfates, manganese ion (Mn(II)) is inefficient for persulfates activation. Inspired by the enhanced stability of manganese species by ligands, this study for the first time systematically investigated the Mn(II)/persulfates with different ligands as a novel oxidation technology...