Evaluation of osseointegration of plasma treated polyaryletherketone maxillofacial implants.

Osseointegration is a crucial property of biomaterials used for bone defect repair. While titanium is the gold standard in craniofacial surgeries, various polymeric biomaterials are being explored as alternatives. However, polymeric materials can be bioinert, hindering integration with surrounding tissues.

Quality of life outcomes in patients receiving dental implants in vascularised bone flaps for mandibular reconstruction.

Resection, reconstruction, and rehabilitation of the mandible impact function and health related quality of life (HRQOL). In this study, we aimed to understand the impact of delayed versus immediate dental implant placement. A cross-sectional and prospective study was conducted including patients who underwent reconstruction of the mandible via osseous vascularised bone flaps and dental implants.

Evaluating the Value of Eye-Tracking Augmented Debriefing in Medical Simulation-A Pilot Randomized Controlled Trial.

Introduction: Debriefing after simulation facilitates reflective thinking and learning. Eye-tracking augmented debriefing (ETAD) may provide advantages over traditional debriefing (TD) by leveraging video replay with first-person perspective. This multisite randomized controlled trial compared the impact of ETAD with TD (without eye-tracking and without video) after simulation on 4 outcomes: (1) resident metacognitive awareness (the primary outcome), (2) cognitive load (CL) of residents and debriefers, (3) alignment of resident self-assessment and debriefer assessment scores, and (4) resident and debriefer perceptions of the debriefing experience.

Jaw in a day surgery: early experience with 19 patients at an Australian tertiary referral center.

Background: The Jaw-in-a-Day (JIAD) procedure aims to achieve immediate functional occlusion via a single-stage approach to maxillofacial reconstruction. While JIAD has gained popularity since its inception by Levine and colleagues, efficacy and outcome data remain limited. In this report, we discuss our experience with the JIAD technique at an Australian tertiary referral centre.

Restorabite™: Phase II trial of jaw stretching exercises using a novel device for patients with trismus following head and neck cancer.

Patients treated for oral cancer, may experience restricted mouth opening (trismus). Barriers such as cost have limited the utilization of traditional jaw stretching devices, and consequently, patients experience problems with swallowing, oral care, communication, and cancer surveillance. The safety and efficacy of Restorabite™, a new device designed to overcome these barriers, is evaluated prospectively over 12 months.

Surgical and health related quality of life outcomes following treatment with zygomatic implant perforated (ZIP) flaps.

Background: The zygomatic implant perforated (ZIP) flap is a novel approach to the challenge of reconstructing the maxilla. We report on our experience using the ZIP flap technique for patients undergoing infrastructure maxillectomy at Chris O'Brien Lifehouse, Sydney, Australia.

Methods: Thirteen patients who underwent a ZIP flap reconstruction between August 2019 and August 2021 were identified.

A Comparison of In Vivo Bone Tissue Generation Using Calcium Phosphate Bone Substitutes in a Novel 3D Printed Four-Chamber Periosteal Bioreactor.

Autologous bone replacement remains the preferred treatment for segmental defects of the mandible; however, it cannot replicate complex facial geometry and causes donor site morbidity. Bone tissue engineering has the potential to overcome these limitations. Various commercially available calcium phosphate-based bone substitutes (Novabone, BioOss, and Zengro) are commonly used in dentistry for small bone defects around teeth and implants.

Outcomes of immediate dental implants in vascularised bone flaps for mandibular reconstruction.

Background: The aim of this study is to assess the outcomes of immediate implant placement for dental rehabilitation following mandibular reconstruction with vascularised bone flaps in a single Australian tertiary cancer centre.

Methods: A retrospective analysis of patients who underwent immediate dental implant or delayed placement in vascularised bone flaps was performed. Primary outcome measures assessed included the number of implants placed, operative time, complication rates, time to radiotherapy initiation, dental rehabilitation rates and time to dental rehabilitation.

Normative isometric plantarflexion strength values for professional level, male rugby union athletes.

Objectives: The primary aim was to establish normative values of isometric plantarflexor muscle strength in professional male rugby union players and compare forwards with backs. The secondary aims were to examine how individual playing position or age influences isometric plantarflexor strength.

Design: Cross-sectional.

A pilot study of intensive intervention using a novel trismus device.

Purpose: Trismus secondary to head and neck neoplasm treatment impacts upon quality of life, nutrition, oral hygiene, and dentition. Current treatment options for trismus apply unquantified force to the jaw, and in many cases, the device costs are prohibitive. This study aimed to prospectively evaluate the impact of a novel trismus device.

Effect of Radiotherapy on Functional and Health-Related Quality of Life Outcomes after Jaw Reconstruction.

Long-term health-related quality of life (HRQOL) and functional outcomes following mandibular and maxillary reconstruction are lacking. To determine these outcomes, a cross-sectional study of patients with a history of cancer who underwent jaw reconstruction was undertaken. Participants were identified from a database of jaw reconstruction procedures at the Chris O'Brien Lifehouse (Sydney, Australia).

Airway injury from the presence of endotracheal tubes and the association with subglottic secretion drainage: a prospective observational study.

Purpose: Laryngeal and tracheal injuries are known complications of endotracheal intubation. Endotracheal tubes (ETTs) with subglottic suction devices (SSDs) are commonly used in the critical care setting. There is concern that herniation of tissue into the suction port of these devices may lead to tracheal injury resulting in serious clinical consequences such as tracheal stenosis.

A comparison of different methods and materials for establishing maximal intercuspal position: A clinical study.

Statement Of Problem: Which method or material used to record the intercuspal position yields the best accuracy of location of the maxillary and mandibular casts is unclear.

Purpose: The purpose of this clinical study was to determine the most reliable method of recording a patient's maximal intercuspal position by comparing 2 common methods with 2 popular registration materials.

Material And Methods: Complete arch impressions were made of both jaws with a polyvinyl siloxane impression material in a metal stock tray followed by 4 interocclusal registrations for each of the 17 participants.

A Coordinated Approach to Implementing Low-Dose CT Lung Cancer Screening in a Rural Community Hospital.

Purpose: The authors describe a rural community hospital's approach to lung cancer screening using low-dose CT (LDCT) to address the high incidence of lung cancer mortality.

Methods: An implementation project was conducted, documenting planning, education, and restructuring processes to implement a lung cancer screening program using LDCT in a rural community hospital (population 64,917, Rural-Urban Continuum Code 5) located in a region with the highest lung cancer mortality in Oregon. The hospital and community partners organized the implementation project around five recommendations for an efficient and effective lung cancer screening program that accurately identifies high-risk patients, facilitates timely access to screening, provides appropriate follow-up care, and offers smoking cessation support.

The DIVERSE Study: Determining the Importance of Various gEnders, Races, and Body Shapes for CPR Education Using Manikins.

Certain demographic groups are less likely to receive efficient Cardiopulmonary resuscitation (CPR), and poor representation of these groups in the manikins used for CPR simulation may play a role. The aim of the DIVERSE Study was to survey organizations that teach CPR to determine the demographic characteristics of the manikins they utilize for simulations. Institutions, businesses, and non-governmental organizations which provide CPR certification in North and Latin America were surveyed through a collaboration with the Emerging Leaders group of the Interamerican Society of Cardiology (SIAC).

Health-related quality of life in maxillectomy patients undergoing dentoalveolar rehabilitation.

Objectives: Surgical resection of the maxilla impairs aesthetics, speech, swallowing, and mastication. Maxillary reconstruction is increasingly performed with virtual surgical planning (VSP) to enhance functional dental rehabilitation with a conventional denture or osseointegrated implants. The aim of this study was to determine whether dental status and VSP is associated with health-related quality of life (HRQOL) and function in patients who have undergone maxillectomy.

Expanding the digital workflow for a prefabricated prelaminated fibula flap: A dental technique.

The workflow for a prefabricated prelaminated fibula free flap has been almost entirely digitized. One of the last 2 remaining steps is the impression making in stage 1 surgery. This article describes a novel computed-tomography based digital scanning technique with an assessment of the resultant accuracy.

Institutional-based and commercial virtual surgical planning in maxillomandibular reconstruction - Comparing the digital plan and postoperative scan.

Background: Virtual surgical planning (VSP) is increasingly used in maxillomandibular osseous free flap reconstruction. Non-commercial ('in-house') VSP may offer the same level of accuracy and other benefits, without the inflated costs and time delays inherent in using commercial providers. Comparisons between commercial and in-house methods are lacking.

System for Central Venous Catheterization Training Using Computer Vision-Based Workflow Feedback.

Objective: To develop a system for training central venous catheterization that does not require an expert observer. We propose a training system that uses video-based workflow recognition and electromagnetic tracking to provide trainees with real-time instruction and feedback.

Methods: The system provides trainees with prompts about upcoming tasks and visual cues about workflow errors.

The Code Silver Exercise: a low-cost simulation alternative to prepare hospitals for an active shooter event.

Mass-shooting incidents have been increasing in recent years and Code Silver-the hospital response to a person with a weapon such as an active shooter in many Provinces or States in North America-is quickly shifting from a theoretical safety measure to a realistic scenario for which hospitals must prepare their staff. A Code Silver Exercise (CSE) involving an independent mental practice exercise with written responses to scenarios and questions, followed by a facilitated debrief with all participants, was conceptualized and trialled for feasibility and efficacy. The CSE was piloted as a quality improvement and emergency preparedness initiative in three different settings including in situ within a hospital Emergency Department or Intensive Care Unit, offsite in a large conference room workshop, and online via virtual platform.

Metallic: A Bivalent Ambimodal Material Property?

Many metallic visual stimuli, especially the so-called precious metals, have long had a rich symbolic meaning for humans. Intriguingly, however, while is used to describe sensations associated with pretty much every sensory modality, the descriptor is normally positively valenced in the case of vision while typically being negatively valenced in the case of those metallic sensations that are elicited by the stimulation of the chemical senses. In fact, outside the visual modality, would often appear to be used to describe those sensations that are unfamiliar and unpleasant as much as to refer to any identifiable perceptual quality (or attribute).

The future of simulation-based medical education: Adaptive simulation utilizing a deep multitask neural network.

Background: In resuscitation medicine, effectively managing cognitive load in high-stakes environments has important implications for education and expertise development. There exists the potential to tailor educational experiences to an individual's cognitive processes via real-time physiologic measurement of cognitive load in simulation environments.

Objective: The goal of this research was to test a novel simulation platform that utilized artificial intelligence to deliver a medical simulation that was adaptable to a participant's measured cognitive load.