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Mouth mirror handle (European Norm) A mouth mirror or dentist's mirror is an instrument used in dentistry. The head of the mirror is usually round, and the most common sizes used are No. 4 (⌀ 18 mm) and No. 5 (⌀ 20 mm). [1] A No. 2 is sometimes used when a smaller mirror is needed, such as when working on back teeth with a dental dam in place.
A curved mirror is a mirror with a curved reflecting surface. The surface may be either convex (bulging outward) or concave (recessed inward). Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices. The most common non-spherical type are parabolic reflectors, found in ...
A real image is the collection of focus points actually made by converging/diverging rays, while a virtual image is the collection of focus points made by extensions of diverging or converging rays. In other words, a real image is an image which is located in the plane of convergence for the light rays that originate from a given object.
A head mirror is a simple diagnostic device, stereotypically worn by physicians, but less so in recent decades as they have become somewhat obsolete. [1] A head mirror is mostly used for examination of the ear, nose and throat (ENT). It comprises a circular concave mirror, with a small hole in the middle, and is attached to a headband.
Dilaceration is a developmental disturbance in shape of teeth. It refers to an angulation, or a sharp bend or curve, in the root or crown of a formed tooth. This disturbance is more likely to affect the maxillary incisors and occurs in permanent dentition. [1] Although this may seem more of an aesthetics issue, an impacted maxillary incisor ...
July 10, 1998. (1998-07-10) Mark Kistler's Imagination Station is a public television series where artist Mark Kistler taught children and adults to draw using techniques such as perspective and shading. The program was originally presented by TV station KIXE in the Redding and Chico areas of the U.S. state of California.
The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.
Oobi: Dasdasi. Oobi is an American children's television series produced by Little Airplane Productions for the Noggin channel. The show's concept is based on a training method used by puppeteers, in which they use their hands and a pair of glass eyes instead of a full puppet. The main character is a bare hand puppet named Oobi.