Publications by authors named "H Van Viet"

Objectives: To evaluate the effectiveness of mini-implant (MI) anchorage versus conventional anchorage for the treatment of skeletal class II malocclusion.

Materials And Methods: The study was conducted on 64 patients with skeletal class II malocclusion. The patients were divided into two groups: 1) 32 patients underwent conventional anchorage, and 2) 32 patients underwent MI anchorage.

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A novel anticoincidence detector is proposed for the measurement of 478 keV gamma radiation for evaluation of boron neutron capture therapy. The Compton continuum around the target photopeak position is effectively suppressed by measuring only the Compton gamma rays scattered at small angles from the primary detector. A numerical evaluation using Monte Carlo simulations estimated an 80% reduction in counts, and the developed prototype detector showed 4% suppression of the Compton continuum of cobalt-60 gamma rays.

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The severe gummy smile and a skeletal class II profile pose challenges in treatment. This case report outlines an effective alternative for addressing these problems in a patient with skeletal class II division 2, class II molar relationship, retroclination of upper incisors, and lip protrusion. Treatment objectives included normalizing the overjet and overbite, improving the gummy smile, and establishing a satisfactory occlusion.

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Across the world and within Europe, a growing number of consumers are choosing to buy gluten-free products. Motivations for a gluten-free diet and the consequences of consuming gluten are varied, from a medical necessity for those diagnosed with celiac disease to a range of health complications and discomfort for those who are gluten-intolerant. In this research, 7296 gluten-free consumers across 13 European countries responded to an online survey on the 33 types of gluten-free products purchased, how frequently they purchased them, their satisfaction with gluten-free quality and availability, the problems they have experienced, and the strategies they have employed to cope with these problems.

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The study evaluated the larvicidal and reproductive effects of essential oils from Ocimum basilicum, Perilla frutescens, and Mentha spicata on engorged female Rhipicephalus sanguineus ticks. Adult immersion and larval packet assays were used to evaluate their larvicidal efficacy and impact on tick reproductive abilities. For tick larvae, Perilla frutescens essential oil had the highest 50% lethal dose of 1.

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