It is suitable for post-and-core integrated crowns with less than 3mm restoration space of posterior teeth and gums
A space-insufficient, plug-in technology, used in prosthetics, dentistry, filling teeth, etc., can solve the problems of less than 3mm of gingival repair space, tight occlusion of the posterior teeth, and decreased tooth strength, etc., to facilitate color matching or staining, The effect of less trauma and high machining accuracy
A space-insufficient, plug-in technology, used in prosthetics, dentistry, filling teeth, etc., can solve the problems of less than 3mm of gingival repair space, tight occlusion of the posterior teeth, and decreased tooth strength, etc., to facilitate color matching or staining, The effect of less trauma and high machining accuracy
CN111821044BActive Publication Date: 2021-02-05AFFILIATED STOMATOLOGICAL HOSPITAL OF NANJING MEDICAL UNIV
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[0043] In order to prove the rationality and effectiveness of the clinical application of the plug-in post-core integrated crown proposed by the present invention, the embodiment is used to restore a typical posterior tooth. Cases with a gingival space of less than 3 mm are repaired using the plug-in post-core integrated crown proposed by the present invention.
[0044] In this case, a large area of dental tissue defect was found on the mesio-distal occlusal surface of the left upper second molar. The mesial defect was located 0.5 mm below the gingiva, and the palatal defect was located about 1 mm above the gingiva. , has undergone complete root canal treatment. The patient did not accept adjustment and grinding of the opposing teeth, and the remaining teeth of the affected teeth were few, but the distal restoration The gingival space is only 1mm, and the mesial area is slightly less than 3mm, so conventional crown restoration or post-core crown restoration cannot be perf...
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The present invention provides a plug-type post-core integrated crown suitable for occlusal and gingival restorations of posterior teeth with a space less than 3mm, including a main body, a plug channel, and a plug. The main body includes a crown and a pulp cavity, and the crown restores the shape and occlusion of the affected tooth. Covering and enveloping the affected tooth preparation; the pulp cavity is located in the pulp cavity of the affected tooth, which matches the shape of the pulp cavity and obtains the retention force. The plug protrudes through the plug channel of the main body into the prepared post canal in the root canal to obtain retention . This type of post-and-core integrated crown is suitable for the occlusal and gingival repair space of posterior teeth less than 3mm. It has the advantages of good retention, no need to adjust and grind the opposing teeth, less damage, and good aesthetics. It provides a good treatment for this type of patients. The new type of restoration is used for the restoration of tooth defects, especially for the restoration of posterior teeth where the occlusal and gingival space is too small to apply conventional crown restoration and post-core + crown restoration.
Description
technical field [0001] The invention relates to the field of restoration of tooth defects in prosthodontics, in particular to a tooth restoration suitable for posterior tooth restoration A plug-in post-core integrated crown with a gingival space of less than 3 mm and a manufacturing method thereof. Background technique [0002] Tooth defects caused by caries, trauma, etc. are common and frequently-occurring diseases in dental restoration clinics. Residual roots and residual crowns belong to the category of severe tooth defects. Due to the lack of the retention shape required for crown restoration, it is necessary to restore the shape of the abutment tooth with a post-core to provide sufficient retention force, that is, the post-core crown restoration method. [0003] Compared with full crowns, the post-core + crown restoration method improves the retention rate of residual roots and residual crowns. However, there is a class of clinical cases in which the tooth defect of ...
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Patent Timeline
05 Feb 2021
Publication
CN111821044B
- IPC
- A61C5/20; A61C5/70; G06T17/00; G16H30/40
- CPC
- A61C2201/00; A61C5/20; A61C5/70; G06T17/00; G16H30/40
- Inventors
- 谢海峰; 陈晨