Y. R. Chen

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OBJECTIVES To differentiate a symmetric face from an asymmetric face by analyzing a three-dimensional (3D) facial image and plotting the asymmetry index (AI) on a facial symmetry diagram. SETTING AND SAMPLE POPULATION Sixty healthy Chinese adults (30 men and 30 women, mean age: 27.7 + 4.9 years old) without any craniofacial deformity were recruited on a(More)
The purpose of this study was to analyze the geometry of the primary cleft lip nasal deformity using three-dimensional computerized tomography in a group of 3-month-old infants with complete unilateral cleft lip and palate before surgical intervention. Coordinates and axes were reconfigured after the three-dimensional image was oriented into neutral(More)
Rice plants were treated with 50 microM copper sulfate to induce the synthesis of phytochelatins by means of a series of enzymatic reactions, including that of photochelatin synthase. Phytochelatin synthase extracted from 3-week-old rice seedlings was purified through a series of steps including precipitation with ice-chilled acetone, QAE A-50 anion(More)
Of 2963 patients registered at the Chang Gung Craniofacial Center, 1755 patients (906 males and 849 females) who did not have any previous surgery were carefully delineated according to cleft side, involvement of primary or secondary palate and severity of cleft. Cleft lip and palate (43.88%) was the most common cleft, cleft palate (30.88%) the second,(More)
A facial "cone" can be drawn inside the head. The apex of the cone is the midpoint of the line that connects both ear canals, point C, and the face is the base. A modified face bow is designed with holes through which a Steinmann pin is passed, meeting at the apex of the facial cone. After the ear bolts are symmetrically fixed, the Steinmann pin through the(More)
Assembly and alignment of nanowires or nanotubes are critical steps for integrating functional nanodevices by the bottom-up strategy. However, it is still challenging to manipulate either an array of nanowires or individual nanowires in a controllable manner. Here we present a simple but versatile method of positioning and aligning nanowires by hydrodynamic(More)
Deficiency of the free border of the lip is frequently encountered in secondary cleft lip deformities. The free border of the lip consists of the orbicularis oris marginalis muscle and its overlying subcutaneous tissue, vermilion, and mucosa. The pathology may involve any or all of these components. When there is an absolute shortage of subcutaneous tissue(More)
In infancy, prior to cranial suture and fontanel calcification, the craniofacial skeleton can be easily deformed by an externally exerted force. In this study, the relationship between the sleep position and skull morphology was investigated. A group of 81 cleft lip and/or palate infants without other systemic anomalies was first seen in the craniofacial(More)
Ankylosis of the temporomandibular joint not only prevents mouth opening and chewing, but also affects the growth and position of the mandible. This produces progressive facial distortion with devastating psychosocial effects compounding the already difficult problem of not being able to open the mouth. Over the past 6 years, 18 patients in Canada and(More)
Risk attitude and perception is reflected in brain reactions during RPID experiments. Given the fMRI data, an important research question is how to detect risk related regions and to investigate the relation between risk preferences and brain activity. Conventional methods are often insensitive to or misrepresent the original spatial patterns and(More)