Maxillary premolar severe wedge-shaped defect fiber post restoration and production method thereof

A technology of premolars and prosthetics, which is applied in dental prosthetics, dentistry, filling teeth, etc. It can solve problems such as increasing unfavorable fractures, root fractures, and loss of affected teeth, and achieves the best restoration effect

Active Publication Date: 2018-01-26
西安交通大学口腔医院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The full crown restoration can make the stress disperse evenly and improve the fracture resistance of the remaining tooth tissue. However, due to the high mechanical strength of the full crown restoration, when sub

Method used

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  • Maxillary premolar severe wedge-shaped defect fiber post restoration and production method thereof
  • Maxillary premolar severe wedge-shaped defect fiber post restoration and production method thereof
  • Maxillary premolar severe wedge-shaped defect fiber post restoration and production method thereof

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Embodiment 1

[0033] This example provides a preparation method for a buccal fiber post restoration of a penetrating wedge-shaped defect in maxillary premolars. The single fiber post 1 is a glass fiber post. The wedge-shaped defect is triangular in shape, and the width of the wedge-shaped defect is 3.0mm. The wall is located 2.0mm above the enamel-cementum junction, the gingival wall is located 1.0mm below the enamel-cementoplasma junction, the depth is set to 1 / 2 of the buccal-lingual diameter of the neck, and the tip of the wedge-shaped defect is located 1.0mm below the enamel-cementoplasma junction. The penetrating wedge-shaped defect is often accompanied by gingival recession and alveolar bone absorption, so the periodontal tissue was reduced 1.0 mm to the root, and the double-root canal tooth model included dentin, enamel, pulp, periodontal ligament, and cortical bone. and a complete 3D solid model of cancellous bone,

[0034] According to the method of penetrating wedge-shaped defect...

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Abstract

The invention discloses a mandibular premolar severe wedge-shaped defect fiber post restoration. The mandibular premolar severe wedge-shaped defect fiber post restoration comprises a single fiber postand a wedge-shaped composite resin filling, and the single fiber post is a cylinder with the tail end diameter being 0.7-0.8 mm and the occlusion square diameter being 1.3-1.6 mm; and the height of the single fiber post is 6.0-7.5 mm less than that of a tooth length. The depth from the tip end to the bottom end of the wedge-shaped composite resin filling is 1/2 to 2/3 of the buccolingual diameterof a dental cervical part, the width of the wedge-shaped composite resin filling is from the mesial proximal surface to the distal mandibular premolar of the mandibular premolar tooth, the thicknessis 3.0-5.0 mm, and the wedge-shaped composite resin filling encircles occlusal 1/3 to middle 1/3 junction of the singe fiber post. The single fiber post of the restoration is positioned in a buccal root canal, and the fiber post is compounded with the composite resin by using the connection and auxiliary retention effects of the fiber post in order to directly complete the restoration without fullcrown.

Description

technical field [0001] The invention belongs to the technical field of dental prosthesis preparation, and in particular relates to a fiber post prosthesis of a maxillary premolar penetrating wedge-shaped defect and a preparation method thereof. Background technique [0002] The possible causes of penetrating wedge-shaped defects in maxillary premolars are weak structure of the tooth neck, mechanical action, acid erosion, It is caused by the joint action of multiple factors such as mechanical fatigue and muscle pressure, often causing pulp disease, periapical disease, and severe cases leading to transverse fracture of the crown and neck. [0003] At present, the commonly used clinical treatment method is root canal treatment + post and core + full crown to prevent the occurrence of crown neck fracture. However, after the root canal treatment of the penetrating wedge-shaped defect in the maxillary premolar, the remaining dental tissue in the neck becomes less; after the full...

Claims

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Application Information

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IPC IPC(8): A61C5/20A61C5/60
Inventor 蒋月桂费秀智李迎楼卢奕冯睿孙沫逸
Owner 西安交通大学口腔医院
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