root fractureとは 意味・読み方・使い方

To provide a post for a dental root which is capable of averting the stress concentration to the tooth substance induced by wearing of the post for the dental root which is the cause for a dental root fracture and can make treatment without breaking a pier structure even when a secondary infection occurs in the dental root area.例文帳に追加

歯根破折の原因となる歯根用ポストの装着により生じる歯質への応力集中を回避することができ、根管部に二次感染が発生した場合にも支台構造を破壊することなく治療を行うことができる歯根用ポストの提供。 - 特許庁

To provide a dental kit for filling root canal, including dental post for constructing an anchor tooth, where not only dental prosthesis treatment is possible for a devitalized tooth by causing no dental root fracture or no metallic allergies, but root canal re-treatment becomes easy as occasion demands.例文帳に追加

歯根破折を引き起こしにくく、かつ金属アレルギーを惹起せずに失活歯の補綴治療を行うことができるとともに、必要に応じて行われる再根管治療が容易となる、歯科用支台築造用ポストおよび該歯科用支台築造用ポストを含む歯科用根管充填用キットを提供すること。 - 特許庁

Since the degree of crystallinity of the sharp-pointed part is made relatively large compared with the root part to provide the needle-like object high in puncture performance because of high rigidity of the tip part and restrained from brittle fracture because of flexibility of the root part.例文帳に追加

先鋭部の結晶化度を根元部と比べ相対的に大きくすることにより、先端部の剛性が高いために穿刺性能が高くかつ根元部に柔性が備わるため脆性破壊が抑制される針状体を提供することが出来る。 - 特許庁

When a fracture surface of the composite ceramic body 1 subjected to a four-point bending test according to JIS R 1601 is observed and the square root of the projected area of an internal defect acting as the starting point of breakdown is regarded as a defect size, the defect size is ≤55 μm.例文帳に追加

ＪＩＳ Ｒ １６０１に基づく４点曲げ試験を行った複合セラミック体１の破面を観察し、破壊の起点となった内部欠陥の投影面積の平方根を欠陥サイズとした場合に、その欠陥サイズが５５μｍ以下である。 - 特許庁

The portion positioned at a pitch circle diameter PCD of a needle roller arrangement in the inside surface along the pocket 14 in the longitudinal direction is made as a shear surface 14a near the longitudinal intermediate part of the pillar 13b, and as a fracture surface 14b in the root section.例文帳に追加

前記ポケット１４の長手方向に沿う内面における、針状ころ配列のピッチ円直径ＰＣＤ上に位置する部分は、前記柱部１３ｂの長手方向中央部付近ではせん断面１４ａ、根元部では破断面１４ｂとされる。 - 特許庁

The bone therapeutic agent is usable for repairing bone defect after lesion curettage or excision, prolonging bone fracture healing, pseudo-joint formation, distraction osteogenesis, artificial joint replacement, spinal fusion, cartilage transplantation, transplantation into jaw cleft, repairing bone defect caused by wound, repairing bone defect after craniotomy, alveolar ridge formation, maxillary sinus floor lifting, alveolar bone regeneration, jaw bone regeneration around artificial dental root, and so on.例文帳に追加

本発明は、病巣掻爬もしくは切除後の骨欠損補填、骨折の治癒遷延、偽関節、仮骨延長術、人工関節置換術、脊椎固定術、軟骨移植、顎裂骨移植、外傷による骨欠損部補填、開頭術後骨欠損補填、歯槽提形成術、上顎洞底挙上術、歯槽骨再生、人工歯根周囲の顎骨再生等において用いられる。 - 特許庁