Mouth mirror
A mouth mirror , also a dental mirror , is a dental instrument for examining the oral cavity and especially the teeth . It consists of a handle and a mirror that can usually be screwed off . Stainless steel and plastic are common materials for the handles in various ergonomic shapes .
In the case of mirrors, a distinction is made between reflective layers applied behind the glass (“back surface”) and in front of the glass (“front surface”). The former are well suited for inspection and diagnostics in normal lighting conditions. The latter are better suited for dental work when the conditions are bright, because they are less reflective. Typical diameters range from ø 18 mm (Fig. 4) to ø 20 mm (Fig. 5) to ø 30 mm (Fig. 10). Shapes include flat and concave mirrors, magnifying mirror surfaces, and double-sided mirrors. As a dental diagnostic instrument according to CE , the mouth mirror belongs to hazard class 2. It is regarded as a unit with the mouth mirror handle and therefore a CE mark must be affixed either on the handle or on the mirror itself . There are two thread standards that are not compatible with each other. The European CE conformity matches the flat handle, the American FDA handle can be recognized by the cone of the handle end.
According to the Dental History Museum in Zschadraß , Joseph Murphy invented the mouth mirror in 1811.
See also
Individual evidence
- ↑ Hellwege K.-D .: The practice of dental prophylaxis: a guide for individual prophylaxis, group prophylaxis and initial periodontal therapy , Thieme Verlag, 2003, p. 227, ISBN 3-13-127186-8 , here online
- ↑ Mouth mirror (pdf) pages 247, 248 ff.
- ↑ Thread standards mouth mirror Source: Daniela Tocan (CC-BY-SA)
- ↑ Dental History Museum Zschadraß