Single-Access Endodontic Treatment of the Maxillary Carnassial Tooth in Dogs: A Conservative Technique Based on Clinical Experience and Modern Materials

Single-Access Endodontic Treatment of the Maxillary Carnassial Tooth in Dogs: A Conservative Technique Based on Clinical Experience and Modern Materials
Author:
Dr. Philippe ROUX, Dipl. EVDC
Dentovet Sàrl, Lausanne, Switzerland

Abstract:
Introduction:
Endodontic treatment of the maxillary fourth premolar (P4) in dogs remains a technical challenge due to the complex and irregular anatomy of its three roots. Traditional approaches often require multiple access points, leading to excessive removal of healthy dental tissue and increasing the risk of weakening the tooth structure, particularly the crown.
Objective:
To present a conservative, single-access endodontic technique developed through clinical experience and anatomical observation. This approach aims to minimize hard tissue loss while ensuring effective canal debridement and shaping.
Technique Overview:
The technique is based on a strategic vestibular access through the natural fracture line commonly found at the tip of the main cusp. This allows direct entry to all three root canals from a single point, reducing the need for invasive secondary accesses. The method leverages the use of highly flexible nickel-titanium (NiTi) files, which adapt well to sharp curvatures and angulated canal entries. In addition, modern adaptive file systems are employed to respect the individual morphology of each canal, removing only the dentin necessary for effective cleaning and shaping. This approach prioritizes preservation of the coronal and radicular structure, reducing the risk of post-treatment fracture.
Clinical Rationale:
The combination of anatomical understanding, minimally invasive access, and modern instrumentation provides a technique that is both conservative and practical. It allows for effective endodontic treatment while maintaining the structural integrity of the tooth, especially in cases where the crown is already compromised.
Conclusion:
This single-access conservative technique offers a valuable alternative to conventional multi-access methods in veterinary endodontics. Rooted in clinical experience and supported by recent advancements in endodontic materials, it emphasizes structural preservation, functional restoration, and long-term success. Further sharing and refinement of this approach across clinical settings are encouraged.