Plug-type post-core integrated crown suitable for posterior tooth occlusal gingival restoration with space less than 3 mm

Abstract

The invention provides a plug-type post-core integrated crown suitable for the posterior tooth occlusal gingival restoration with a space less than 3 mm. The plug-type post-core integrated crown comprises a main body, a plug channel and a plug, wherein the main body comprises a crown part and a pulp cavity part, the crown part restores the shape and occlusal relationship of an affected tooth, andcovers and envelops a prepared body of the affected tooth, the pulp cavity part is located in a pulp cavity of the affected tooth, and matches the shape of the pulp cavity to obtain the retention force, and the plug passes through the plug channel of the main body and extends into a prepared post channel in the root canal to obtain retention. The plug-type post-core integrated crown suitable for the posterior tooth occlusal gingival restoration with a space less than 3 mm has the advantages of good retention, no need to adjust and grind a contralateral tooth, little damage, and good aesthetics, provides a good and novel restoration body used for the restoration of dental defects for such patients, and is especially suitable for the case that a posterior tooth restoration occlusal gingivalspace 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 ...

AI Technical Summary

Problems solved by technology

However, there is a class of clinical cases in which the tooth defect of the patient’s posterior teeth is an indication for post-core crown restoration, but the affected tooth The gingival repair space is less than 3mm, and the posterior teeth are tightly occluded

However, this treatment method is traumatic, expensive, and requires many visits. In particular, crown lengthening surgery leads to shortening of the actual root length in the bone, and root canal treatment leads to a decline in tooth strength and other issues that may cause long-term complications. Patients are often difficult to accept

[0006] iii. The tooth should be restored to shape Although the height of the gingiva is less than 3mm, it is almost the same. Patients who can use auxiliary retainer design and other methods for post-core crown restoration can only use metal casting restorations. For patients with high aesthetic requirements and special inspection of nearby tissues Can't apply

However, the study also found that the pulp cavity-retaining crown relies on the pulp cavity and the part extending to the root canal to provide the retention shape. Since it is not connected with the root as a whole, it is easy to recover in cases with weak tooth tissue or when the force is uneven. crown fold

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