Labial endodontic access opening for mandibular incisors: endodontic and restorative considerations

Area of Science:

• Endodontic Dentistry
• Dental Anatomy
• Restorative Dentistry

Background:

• Mandibular incisors present unique endodontic challenges due to their anatomy.
• Traditional access openings may compromise canal identification and instrumentation.
• Preservation of coronal tooth structure is crucial for post-endodontic restoration.

Purpose of the Study:

• To propose and evaluate a labial access opening approach for endodontic treatment of mandibular incisors.
• To assess the efficacy of this technique in identifying and instrumenting multiple canals.
• To determine the impact of the labial approach on coronal tooth structure preservation.

Main Methods:

• A novel labial access opening preparation was designed for mandibular incisors.
• The technique was applied in extracted teeth to evaluate canal negotiation and instrumentation.
• Assessment of preserved coronal tooth structure and suitability for dowel core placement was performed.

Main Results:

• The labial access facilitated clear identification of root canal orifices, including accessory canals.
• Instrumentation of both canals, when present, was more straightforward compared to conventional approaches.
• Significant preservation of coronal tooth structure was observed, allowing for improved dowel core retention.

Conclusions:

• A labial access opening is a viable and advantageous approach for endodontic treatment of mandibular incisors.
• This technique enhances procedural efficiency and improves the quality of root canal obturation.
• Preserving coronal tooth structure with the labial approach optimizes conditions for successful post-endodontic rehabilitation.