Peri-implantitis, Risk of Recurrence and Implant Loss in Soldiers with Stage III/IV Periodontitis during 20-30 Years of Supportive Periodontal Therapy (SPT).

Purpose: To help fill the knowledge gaps regarding the long-term effectiveness of peri-implantitis therapy, this retrospective study of soldiers with treated severe periodontitis (stage III gen. / IV) who had been undergoing adherent SPT for at least 20 years aimed to determine the frequency of peri-implantitis and patient-related risk factors for this, as well as the 10-year survival rates of dental implants under peri-implantitis therapy.

Materials And Methods: The observation period was between 1993 and 2023.

Lifespan of Splints in a Sample of German Soldiers Hospitalised with Post-traumatic Stress Disorder (PTSD) in Combination with Sleep Bruxism and Painful Temporomandibular Disorder (TMD).

Purpose: This cross-sectional longitudinal observational study aimed to clarify the question of whether painful temporomandibular disorders (TMD) in psychiatrically confirmed patients hospitalised for post-traumatic stress disorder (PTSD) therapy after using splint therapy (ST) show long-term therapeutic effects in the case of functional disorders.

Materials And Methods: One hundred fifty-three (153) inpatients (123 male and 20 female soldiers, age 35.8 ± 9.

The effects of standing foot-transmitted vibration on self-reported discomfort ratings.

Background: Occupational foot-transmitted vibration (FTV) exposure is common in industries like mining, construction, and agriculture, often leading to acute and chronic injuries. Vibration assessments require technical expertise and equipment which can be costly for employers to perform. Alternatively, researchers have observed that self-reported discomfort can be used as an effective indicator of injury risk.

Workers' compensation experience in some Indigenous Northern Ontario communities.

Background: There is a dearth of research about occupational health and safety experience in Indigenous communities and compensation applications from Indigenous workers appear limited.

Objective: This qualitative descriptive study was designed to explore workers' compensation experiences in some Canadian Indigenous communities.

Methods: A community-based participatory research approach was used to conduct focus groups (n = 25 participants) in three Northeastern Ontario (NEO) Indigenous communities and at one NEO Indigenous employment centre.

Periodontal Disease and Tooth Wear in a Sample of German Soldiers with Posttraumatic Stress Disorder.

Purpose: Dental symptoms of post-traumatic stress disorder (PTSD) patients include a majority of painful temporomandibular joint and masticatory muscle findings, restricted mouth opening, and pronounced attritions. Traumatic occlusal force resulting in injury of the teeth and/or the periodontal attachment apparatus may exceed the adaptive capacity of the individual person or site. This observational cross-sectional study in soldiers with PTSD and a non-PTSD control group after military deployments aimed to evaluate a possible relationship between bruxism and periodontal diagnosis.

A Cyclometalated NHC Iridium Complex Bearing a Cationic (η -Cyclopentadienyl)(η -phenyl)iron Backbone*.

Nucleophilic substitution of [(η -cyclopentadienyl)(η -chlorobenzene)iron(II)] hexafluorophosphate with sodium imidazolate resulted in the formation of [(η -cyclopentadienyl)(η -phenyl)iron(II)]imidazole hexafluorophosphate. The corresponding dicationic imidazolium salt, which was obtained by treating this imidazole precursor with methyl iodide, underwent cyclometallation with bis[dichlorido(η -1,2,3,4,5-pentamethylcyclopentadienyl]iridium(III) in the presence of triethyl amine. The resulting bimetallic iridium(III) complex is the first example of an NHC complex bearing a cationic and cyclometallated [(η -cyclopentadienyl)(η -phenyl)iron(II)] substituent.

[Dental disorders with a psychosocial background].

While the mouth and teeth play a lifelong central role in a person's development and wellbeing, psychosocial aspects of disease and health are still only reluctantly included in dental explanatory models. Only dental anxiety with its disease quality of a specific phobia is generally recognized as a mental disorder requiring intervention. It is interpreted as an emotional reaction to aspects of dental treatment, which results in distress for the affected person and appears to be unreasonably intense given the actual dangers involved.

Safety Culture: A Retrospective Analysis of Occupational Health and Safety Mining Reports.

Background: In the mining industry, various methods of accident analysis have utilized official accident investigations to try and establish broader causation mechanisms. An emerging area of interest is identifying the extent to which cultural influences, such as safety culture, are acting as drivers in the reoccurrence of accidents. Thus, the overall objective of this study was to analyze occupational health and safety (OHS) reports in mining to investigate if/how safety culture has historically been framed in the mining industry, as it relates to accident causation.

Union, employer and compensation system gaps and failures: Workers with injuries perceptions.

Background: Workers who suffered a workplace injury and submitted a claim with the compensation board in Ontario often faced economic and non-economic costs that provoked depressive feelings, family strain, financial strain, and feelings of diminished self-worth.

Objective: This qualitative descriptive study aimed to understand the perceived gaps and failures associated with the support systems (e.g.

Four degree-of-freedom lumped parameter model of the foot-ankle system exposed to vertical vibration from 10 to 60 Hz with varying centre of pressure conditions.

Modelling the foot-ankle system (FAS) while exposed to foot-transmitted vibration (FTV) is essential for designing inhibition methods to prevent the effects of vibration-induced white-foot. K-means analysis was conducted on a data set containing vibration transmissibility from the floor to 24 anatomical locations on the right foot of 21 participants. The K-means analysis found three locations to be sufficient for summarising the FTV response.

Dental Anxiety and Higher Sensory Processing Sensitivity in a Sample of German Soldiers with Inflammatory Periodontal Disease.

(1) Background: Dental anxiety with disease value usually leads to avoidance of dental treatment. For the initial diagnosis of the level of anxiety, questionnaires such as the Hierarchical Anxiety Questionnaire (HAQ) are suitable. The construct of sensory processing sensitivity (SPS) describes a general trait in which people with a higher degree of SPS perceive information more strongly and process it more thoroughly.

Retraction Note: Infection of great apes and a zoo keeper with the same Mycobacterium tuberculosis spoligotype.

The original article can be found online.

Long-term effects of splint therapy in patients with posttraumatic stress disease (PTSD).

Objectives: The aim of a pilot study was to clarify the question of whether mouth opening restrictions in patients with PTSD by means of splint therapy (st) show long-term therapeutic effects in the case of functional disorders.

Material And Methods: In 31 of 36 inpatients (soldiers, average age 37.1 ± 7.

Development of a two-dimensional dynamic model of the foot-ankle system exposed to vibration.

Workers in mining, mills, construction and some types of manufacturing are exposed to vibration that enters the body through the feet. Exposure to foot-transmitted vibration (FTV) is associated with an increased risk of developing vibration-induced white foot (VIWFt). VIWFt is a vascular and neurological condition of the lower limb, leading to blanching in the toes and numbness and tingling in the feet, which can be disabling for the worker.

Mining-Related Lower Back Injuries and the Compensation Process: An Injured Worker's Journey.

In Ontario, when an occupational injury occurs in the mining industry, there is often a need to interact with the Workplace Safety and Insurance Board (WSIB). During this process, miners experience economic, social, and mental health-related issues that can affect their overall well-being. This study aimed to determine the impact of a lower back injury and the WSIB claim process experience expressed by some male, underground miners in Sudbury, Ontario, Canada.

Standing centre of pressure alters the vibration transmissibility response of the foot.

Vibration-white foot as an occupational disease has underscored the need to better understand the vibration response of the foot. While vibration transmissibility data exist for a natural standing position, it is anticipated that weight distribution will affect the response. The purpose of this study was to determine the effects of changes in centre of pressure (COP) on the foot's biomechanical response.

Biomechanical response of the human foot when standing in a natural position while exposed to vertical vibration from 10-200 Hz.

Exposure to foot-transmitted vibration (FTV) can lead to pain and numbness in the toes and feet, increased cold sensitivity, blanching in the toes, and joint pain. Prolonged exposure can result in a clinical diagnosis of vibration-induced white foot (VIWFt). Data on the biomechanical response of the feet to FTV is limited; therefore, this study seeks to identify resonant frequencies for different anatomical locations on the human foot, while standing in a natural position.

[Orofacial dysfunction and posttraumatic stress disorder : A context analysis of soldiers after military deployment].

Background: In studies on posttraumatic stress disorder (PTSD, ICD 10: F43.1) and in clinical observation, the high proportion of soldiers with painful craniomandibular dysfunction (CMD) is conspicuous.

Aim: This study aimed to clarify if there is a connection between orofacial dysfunction, pain in this region, stress and PTSD.

Sleep Quantity and Quality of Ontario Wildland Firefighters Across a Low-Hazard Fire Season.

Objective: The aim of the study was to assess the sleep quality, quantity, and fatigue levels of Canadian wildland firefighters while on deployment.

Methods: Objective and subjective sleep and fatigue measures were collected using actigraphy and questionnaires during non-fire (Base) and fire (Initial Attack and Project) deployments.

Results: Suboptimal sleep quality and quantity were more frequently observed during high-intensity, Initial Attack fire deployments.

Novel Tools in Determining the Physiological Demands and Nutritional Practices of Ontario FireRangers during Fire Deployments.

Introduction: The seasonal profession of wildland fire fighting in Canada requires individuals to work in harsh environmental conditions that are physically demanding. The purpose of this study was to use novel technologies to evaluate the physiological demands and nutritional practices of Canadian FireRangers during fire deployments.

Methods: Participants (n = 21) from a northern Ontario Fire Base volunteered for this study and data collection occurred during the 2014 fire season and included Initial Attack (IA), Project Fire (P), and Fire Base (B) deployments.

Evaluation of the vibration attenuation properties of an air-inflated cushion with two different heavy machinery seats in multi-axis vibration environments including jolts.

Seats and cushions can attenuate whole-body vibration (WBV) exposures and minimize health risks for heavy machine operators. We successfully developed neural network (NN) algorithms to identify the vibration attenuation properties for four different seating conditions (seat/cushion combinations), and implemented each of the NN models to predict the equivalent daily exposure A(8) values for various vehicles in the forestry and mining environments. We also evaluated the performance of the new prototype No-Jolt™ air-inflated cushion and the original cushion of each seat with jolt exposures.

Comparing para-rowing set-ups on an ergometer using kinematic movement patterns of able-bodied rowers.

While numerous studies have investigated the biomechanics of able-bodied rowing, few studies have been completed with para-rowing set-ups. The purpose of this research was to provide benchmark data for handle kinetics and joint kinematics for able-bodied athletes rowing in para- rowing set-ups on an indoor ergometer. Able-bodied varsity rowers performed maximal trials in three para-rowing set-ups; Legs, Trunk and Arms (LTA), Trunk and Arms (TA) and Arms and Shoulders (AS) rowing.

Infection of great apes and a zoo keeper with the same Mycobacterium tuberculosis spoligotype.

An animal keeper was diagnosed with pulmonary tuberculosis (TB) after bi-annual screening for latent TB infection in zoo employees. In the same period, several bonobos of the zoo were suffering from TB as well. The Mycobacterium tuberculosis strains from both the animal keeper and the bonobos appeared identical.

Selecting seats for steel industry mobile machines based on seat effective amplitude transmissibility and comfort.

Objective: The purpose of this work was to help a steel industry partner select the most appropriate of three high end heavy equipment seats to retrofit a number of their heavy mobile machines used in the steel making process.

Participants: The participants included 8 males (22.3 ± 2.

Vibration induced white-feet: overview and field study of vibration exposure and reported symptoms in workers.

Background: Workers who stand on platforms or equipment that vibrate are exposed to foot-transmitted vibration (FTV). Exposure to FTV can lead to vibration white feet/toes resulting in blanching of the toes, and tingling and numbness in the feet and toes.

Objectives: The objectives are 1) to review the current state of knowledge of the health risks associated with foot-transmitted vibration (FTV), and 2) to identify the characteristics of FTV and discuss the associated risk of vibration-induced injury.