PROBLEM TO BE SOLVED: To provide a probe for periodontal pocket measurement, for implementing easy viewing using light and making it easy to determine a prescribed load.SOLUTION: A probe part 1 includes an anterior light guiding path 7, a posterior light guiding path 11, and a beam-shaped elastic part 12 that are integrally molded by transparent resin. An application of a load to the tip of a probe needle part 3 deforms the beam-shaped elastic part 12 to change positional relation between the anterior light guiding path 7s light-receiving surface 5 and the posterior light guiding path 11s light-emitting surface 8 that face each other. Depth measurement is performed using a scale capable of being easily viewed while applying a prescribed load at the time of brightness of the probe needle part 3 being maximized by light of an LED 16 entering the light-receiving surface 5, while being guided by a light introduction part 6, and being totally reflected by a light reflection part 4.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】光で見易く、規定荷重の判断が容易な歯周ポケット測定用のプローブを提供する。【解決手段】プローブ部1は、先の導光路7、後の導光路11、および梁状の弾性部12が透明樹脂で一体的に成形され、深針部3の先に荷重が加えられて梁状の弾性部12が変形して対向する先の導光路7の受光面5と後の導光路11の光放出面8の位置関係が変化し、LED16の光が光導入部6に導かれて受光面5に入り、光反射部4で全反射されて深針部3の明るさが最大になる時を規定加重として見やすい目盛りで深さが測定される。【選択図】図1
