Annals of Japan Prosthodontic Society
Online ISSN : 1883-6860
Print ISSN : 1883-4426
ISSN-L : 1883-4426
Case Reports (Specialist)
A case report of crown prosthetic treatment of a vital maxillary premolar with horizontal fracture in the cervical region
Shingo Tamiya
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2026 Volume 18 Issue 1 Pages 41-44

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Abstract

Patient: A 52-year-old woman presented with masticatory difficulty and esthetic concerns due to a coronal fracture of the maxillary left first premolar. The remaining tooth structure on both mesial and distal aspects was subgingival but exhibited vitality. Orthodontic extrusion and a crown lengthening procedure were performed to obtain a ferrule, followed by crown restoration with the pulp preserved.

Discussion: Electric pulp tests were performed until final restoration to assess pulp preservation. The occlusal scheme during lateral excursion was modified to a group function including the canine. These treatments are considered to have reduced the risk of further fracture.

Conclusion: By preserving pulp vitality, performing appropriate preprosthetic procedures, and adjusting the lateral occlusal scheme, a favorable clinical outcome was achieved in restoring a coronal-fractured tooth.

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© 2026 Japan Prosthodontic Society
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