Dens invaginatus type III in a mandibular premolar

Area of Science:

• Dentistry
• Endodontics
• Dental Morphology

Background:

• Dens invaginatus is a developmental anomaly of teeth, often leading to bacterial pulp infection.
• It most frequently affects the maxillary lateral incisor.
• This condition requires careful clinical evaluation and management.

Observation:

• A case report details a Type III dens invaginatus in a mandibular first premolar.
• The tooth presented with acute apical periodontitis.
• The dental pulp tested vital at the time of presentation.

Findings:

• Endodontic treatment involving instrumentation and obturation was performed.
• Coronal restoration included a glass ionomer base and occlusal composite resin.
• Pulp vitality was maintained throughout the treatment process.

Implications:

• This case demonstrates successful endodontic management of a rare mandibular dens invaginatus.
• Preserving pulp vitality in such cases is achievable with appropriate treatment.
• Clinicians should consider pulp vitality preservation for dens invaginatus cases.