Association of clinical indicators in TMJ, craniofacial, occlusal, and upper airway changes with symptoms of pediatric obstructive sleep apnea and mouth-breathing.

Objective: To assess the association between self-reported symptoms of pediatric OSA and clinical signs in MB children.

Methods: Seventy-three MB children aged 7-14 years answered an interview questionnaire on OSA symptoms in childhood, focusing on chewing, nasal, and sleep disturbances. MB children were checked for changes on the craniofacial, occlusion, TMJ, upper airway, and body posture by a multi-disciplinary team, consisting of medical residents, dental, and psychology postgraduate students.

Effects of solvent type and UV post-cure time on 3D-printed restorative polymers.

Objectives: This study evaluated the impact of different solvents and UV post-curing times on properties of 3D printing resins for provisional restorations.

Methods: The post-processing methods were tested using two solvents (isopropyl alcohol or absolute ethanol) and three UV times (5, 10, or 30 min). The resins tested were Resilab 3D Temp, Printax Temp, and Prizma Bioprov.

Retention of Iodide by Chloride Green Rust and Magnetite.

Green rust (GR), a layered double hydroxide (LDH) containing Fe, and magnetite can be found in natural and engineered environments. The ability of chloride GR (GR-Cl) and magnetite to retain iodide as a function of various parameters was investigated. Sorption equilibrium is achieved within 1 day of contact time between iodide and preformed GR-Cl in suspension.

Combined X-ray absorption and SEM-EDX spectroscopic analysis for the speciation of thorium in soil.

Mobility and bioavailability of radionuclides in the environment strongly depend on their aqueous speciation, adsorption behavior and the solubility of relevant solid phases. In the present context, we focus on naturally occurring Th-232 at a location in central Sri Lanka presenting high background radiation levels. Four different soil samples were characterized using X-ray Absorption Spectroscopy (XAS) at the Th L-edge (16.