In the endodontic treatment of curved canals, navigating the dilacerated and S-shaped roots frequently presents a difficult condition. Understanding canal anatomy, coronal preflaring, precurving all hand tools, and using fewer files all make it easier for curved canal negotiation and maintaining the shape without experiencing any procedural hiccups. In the current cases, all hand files are utilized with a balanced force approach, which has the advantages of reducing the extrusion of debris, reducing iatrogenic errors, and centralizing instrument maintenance. The team’s meticulous preoperative radiograph analysis and cautious approach ensured safe, effective endodontic treatment for the teeth. In this case series, we show two intriguing cases of endodontic treatment of curved canals.
A straight root and a straight canal are less common than the former. People think that the rapid shift in axial inclination between the root and the crown causes the dilaceration, or curvature, in the root. In endodontic treatment of curved canals, navigating such curvatures frequently presents a difficult situation.
PROCEDURAL ERRORS LIKE LEDGE, INSTRUMENT BREAKAGE, CANAL BLOCKAGE, ZIPPING, OR ELBOW FORMATION CAUSE ENDODONTIC TREATMENT FAILURE IN UNIQUE CANAL CASES. CAREFUL PLANNING, EXECUTION, AND RADIOGRAPH ANALYSIS ENSURE SAFE, SUCCESSFUL ENDODONTIC TREATMENT FOR CHALLENGING TEETH.
The majority of canals often have curves, making endodontic treatment difficult due to instrumentation challenges. Canal curvature examples: dilacerated, S-shaped, gradually curving root, and sharply curved apical third in dentistry. Tomes coined “dilatation,” defining it as a crown-root connection deviation in a tooth. Dilacerations have idiopathic developmental disturbances or damage to the permanent tooth bud as their origin. The S-shaped channel is one of the several anatomical differences in maxillary premolars that Vertucci demonstrated. An understanding of internal root architecture guides effective endodontic therapy.
Procedure errors such as ledge development, broken instruments, canal blockage, zipping, or elbow production are the most frequent reasons for endodontic treatment therapy failure in circumstances of unusual canal anatomy. Precurve hand tools, use fewer files for smooth curved canal negotiation and maintain form without procedural hiccups.
Users employ the balanced force technique when utilizing all hand files, which provides the benefits of reducing the extrusion of debris, minimizing iatrogenic mistakes, and enabling central instrument maintenance. Using rotary files in the crown-down approach promotes early coronal third flaring. The benefits include reduced instrument binding, less apical debris, and efficient apical root canal irrigation. To manage tooth bends well, understand tooth anatomy and use preoperative X-rays for effective treatment.
PATIENCE IS KEY FOR CHALLENGING MID-ROOT CURVATURES; START MANUAL CANAL NAVIGATION BEFORE USING ROTARY FILES WITH GENEROUS IRRIGATION.
Carefully following the traditional approach enables the safe and effective endodontic therapy of curved canals. Successfully treated due to a cautious conventional approach, resulting in sufficient canal enlargement. Using appropriate equipment techniques and personalized treatment planning can improve treatment quality, manage curved canal negotiation, and avoid problems.
Gaining access to the pulp is the first stage. Flare pulp chamber walls with tapered diamond until all canal orifices are visible, like using a camera lens. The term used for this is “straight-line access.” Straight-line access smooths pulp chamber walls, aiding file movement in the canal. Straight-line access eliminates the need for the file to curve to enter the root canal opening.
A No. 8 or No. 10 reamer—not a K file—should be used to go to working length after gaining straight-line access. This step will accomplish the initial glide path, check for patency, establish the operating length, and create an impression of the canal.
When you remove the reamer, its dead soft’ quality leaves an exact impression of the curved canals, which is the benefit of employing it over a K file. To serve as a reference point, however, mark the instrument’s labial or buccal surface handle with a magic marker before removing the reamer. In the reamer’s impression, the reamer reflects the degree, kind, location, and direction of the curvature. Apical transportation or zipping is also less likely with the reamer than with the K file because of its greater flexibility. Also, we should not use stainless steel hand files and No. 10 and higher reamers in curved canals because they are too rigid.