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Tooth Anatomy01:21

Tooth Anatomy

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The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
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Updated: Apr 14, 2026

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities
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Dental root elevator embedded into a subgingival caries: a case report.

Jaume Miranda-Rius1, Lluís Brunet-Llobet2, Eduard Lahor-Soler3

  • 1Departament d'Odontostomatologia, Facultat d'Odontologia, Universitat de Barcelona, Feixa Llarga s/n, 08907, L'Hospitalet de Llobregat, Barcelona, Spain. jmiranda-rius@ub.edu.

BMC Research Notes
|April 19, 2015
PubMed
Summary
This summary is machine-generated.

A rare dental complication occurred when a tooth elevator tip fractured and lodged in a hidden cavity. This case highlights the importance of careful instrument use and radiographic assessment following surgical accidents.

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Area of Science:

  • Oral Surgery
  • Dental Materials Science

Background:

  • Surgical instrument breakage is a rare but serious complication.
  • Tooth elevators are crucial for luxating teeth and fractured roots during oral procedures.
  • No prior cases documented tooth elevator tip fracture retained in a caries cavity.

Observation:

  • A 28-year-old male presented with acute pain six months post-mandibular third molar extraction.
  • Intraoral radiography revealed a metallic foreign body in distal subgingival caries of the mandibular left second molar.
  • The foreign body was consistent with a fractured tooth elevator tip.

Findings:

  • The fractured tooth elevator tip acted as a foreign body within a caries cavity.
  • This represents a novel presentation of instrument failure in oral surgery.
  • Radiographic imaging was essential for diagnosis.

Implications:

  • Dental surgeons must exercise caution with instruments in poorly visualized areas.
  • Radiographic evaluation is critical after suspected instrument breakage.
  • Ethical patient notification and appropriate management are paramount following surgical incidents.