A novel approach to evaluate the mechanical responses of elastin-like bioresorbable poly(glycolide-co-caprolactone) (PGCL) suture.

Poly(glycolide-co-caprolactone) (PGCL) has become a novice to the bioresorbable suture owing to the synergistic properties taken from the homo-polyglycolide (PGA) and polycaprolactone (PCL) such as excellent bioresorption and flexibility. In addition to under conventional monotonic loading, the understanding of mechanical responses of PGCL copolymers under complex loading conditions such as cyclic and stress relaxation is crucial for its application as a surgical suture. Consequently, the present work focuses on evaluating the mechanical responses of PGCL sutures under monotonic, cyclic, and stress relaxation loading conditions.

A systematic review on the effectiveness of dialectical behavior therapy for improving mood symptoms in bipolar disorders.

Background: Evidence-based psychotherapies available to treat patients with bipolar disorders (BD) are limited. Dialectical behavior therapy (DBT) may target several common symptoms of BD. We conducted a systematic review on the efficacy of DBT for mood symptoms in patients with BD.

Mechanical Response of Glass-Epoxy Composites with Graphene Oxide Nanoparticles.

Graphene-based fillers possess exceptional properties that encourage researchers toward their incorporation in glass-epoxy (GE) polymer composites. Regarding the mechanical and wear properties of glass-epoxy composites, the effect of graphene oxide (GO) reinforced in glass-epoxy was examined. A decrease in tensile modulus and increase in tensile strength was reported for 1 wt.

Scientific Advancements in Composite Materials for Aircraft Applications: A Review.

Recent advances in aircraft materials and their manufacturing technologies have enabled progressive growth in innovative materials such as composites. Al-based, Mg-based, Ti-based alloys, ceramic-based, and polymer-based composites have been developed for the aerospace industry with outstanding properties. However, these materials still have some limitations such as insufficient mechanical properties, stress corrosion cracking, fretting wear, and corrosion.

Evaluating CNC Milling Performance for Machining AISI 316 Stainless Steel with Carbide Cutting Tool Insert.

The present study investigates the CNC milling performance of the machining of AISI 316 stainless steel using a carbide cutting tool insert. Three critical machining parameters, namely cutting speed (v), feed rate (f) and depth of cut (d), each at three levels, are chosen as input machining parameters. The face-centred central composite design (FCCCD) of the experiment is based on response surface methodology (RSM), and machining performances are measured in terms of material removal rate (MRR) and surface roughness (SR).

On the Residual Stresses and Fracture Toughness of Glass/Carbon Epoxy Composites.

The resistance to delamination in polymer composite depends on their constituents, manufacturing process, environmental factors, specimen geometry, and loading conditions. The manufacturing of laminated composites is usually carried out at an elevated temperature, which induces thermal stresses in composites mainly due to a mismatch in the coefficient of thermal expansion (CTE) of fiber and matrix. This work aims to investigate the effect of these process-induced stresses on mode-I interlaminar fracture toughness (G) of Glass-Carbon-Epoxy (GCE) and Glass-Epoxy (GE) composites.

Comparative evaluation of efficacy of two minimally invasive caries removal techniques on fracture resistance of the teeth restored with composite: An SEM study.

Aim: The aim of the study was to evaluate and compare the efficacy and fracture resistance of the teeth restored with composite using two minimally invasive caries removal techniques under a scanning electron microscope.

Materials And Methodology: Forty-five freshly extracted human permanent molars with Class I and II dentinal caries were selected. Diamond bur group (15): The carious lesion was excavated using round diamond bur until hard dentine was detected.

Microsurgical simulation, a 'cheep' solution.

There is a demand for simulation-themed courses within maxillofacial surgery, yet these are often expensive. With this in mind, we used a non-living chicken thigh model to simulate microsurgical procedures on a training day for specialty registrars. The advantages and limitations of the simulation were explored through participant feedback.

Carotid aneurysms: unusual referrals from general dental practice.

Oral and maxillofacial surgeons carry out the diagnosis and treatment of diseases affecting the mouth, jaws, face and neck. They provide a critical referral service for dentists in general practice, with the most suspicious of these being sent as 'urgent suspected cancer', or 'USC'. According to national guidelines, such cases must be seen within 14 days.

The use of zygomatic implants for the retention of nasal prosthesis following rhinectomy: the Morriston experience.

Reconstruction and rehabilitation following rhinectomy remains controversial and presents a complex problem. Although reconstruction with local and microvascular flaps is a valid option, the aesthetic results may not always be satisfactory. The aesthetic results achieved with a nasal prosthesis are excellent; however patient acceptance relies on a secure method of retention.

Successful Harvest of Free Fibula Flap in a Rare Anomalous Variant of the Peroneal Artery.

We present a case of successful harvest and anastomosis of a free fibula flap with 15 cm of bone where the peroneal artery was only 1.0 cm long and situated in the distal 1/3rd of the fibula.

Management of macroglossia in Beckwith-Wiedemann syndrome.

Beckwith-Wiedemann syndrome (BWS) is a rare congenital disease of low prevalence. Its most common feature is macroglossia, being present in most cases. Clinically macroglossia can compromise the airway, cause dysphagia, drooling and poor cosmesis.

Necrotising fasciitis of the submandibular region; a complication of odontogenic origin.

Inadequate treatment or neglect of odontogenic infections can have serious consequences. The potential for spreading through fascial planes and intracranially can cause compromise of the airway and cavernous sinus thrombosis respectively. On rare occasions this can lead to a rapidly progressing necrotising fasciitis, with destruction of soft tissue, making reconstruction difficult.

A form for referral of injured patients between maxillofacial and ophthalmology units.

We have designed a form to facilitate referral of injured patients between maxillofacial and ophthalmology units. This form improves communication, gives a written record of referral, and can be used for audit.

Blood transfusion requirements in bimaxillary osteotomies.

The over-ordering of cross-matched blood to cover operations can result in blood shortages and is costly; it can never be free of risk. Current published guidelines recommend cross-matching 2 units of blood for bimaxillary orthognathic procedures with an additional 2 units if combined with a genioplasty. We reviewed the records of 115 consecutive cases of simultaneous bimaxillary osteotomies at Morriston Hospital over a 5-year period (January 1996 to December 2000).

Post-traumatic orbital cellulitis.

Orbital cellulitis is uncommon. It may arise as a sequel to eyelid infection, or from direct spread of infection from the paranasal sinuses; it may be of odontogenic origin and has been reported after meningitis and after nasoorbital fractures with pre-existing sinusitis. Clinically, orbital cellulitis is of great importance, as it is a severe disease with potentially disastrous consequences.

'Do-it-yourself' dental treatment: a case report.

The use of topical desensitizing agents and the placement of superficial restorations at cervical margins are part of a conventional treatment plan for hypersensitive teeth. This case report describes a dental-phobic patient who employed a rather peculiar 'do-it-yourself' approach to alleviate the problems of hypersensitivity, by covering her teeth with a mixture of candle wax and 'household' glue.