Tooth anatomy risk factors influencing root canal working length accessibility

Abstract

The aim of this study was to analyze the specific influence of root canal anatomy on the accessibility of working length during root canal therapy. Four hundred seventy-six root canal therapy cases (amounting to a total of 1 005 root canals) were examined. The anatomy risk factors assessed in each case included: tooth type (tooth location), root canal curvature, and root canal calcification, as well as endodontic retreatment. The investigation examined the correlation between each of these anatomic factors and the working length, with statistical analysis consisting of Chi-square tests and multiple logistic regression analysis. In an independent factor analysis, tooth type (tooth location), root canal curvature, canal calcification, and endodontic retreatment were determined to be the primary risk factors. In a multiple-factor regression model, root curvature and canal calcification were found to most significantly influence root canal working length accessibility (P<0.05). Root canal anatomy increases the difficulty of root canal preparation. Appropriate consideration of tooth anatomy will assist in accurate determination of preparation difficulty before instrumentation. This study alerts clinical therapists to anatomical factors influencing the working length accessibility, and allows for a direct estimate of success rate given in situ measurements of tooth factors during the root canal treatment procedure.

Proses penyembuhan lesi periapikal pada radiografi periapikal menggunakan Software Image J

“…Hal ini dapat disebabkan karena pada gigi posterior terdapat anatomi gigi yang lebih rumit dibanding gigi anterior yang hanya memiliki satu saluran akar sehingga penyembuhan lebih baik pada gigi anterior. 9 Hasil penelitian pada tabel 2 menunjukkan pengurangan luas lesi pada bahan pengisi Gutta-percha dan Guttaflow sebesar 10,46±10,44 mm2, pada bahan pengisi gutta-percha dan Endomethasone sebesar 12.06±12.28 mm2, dan pada bahan pengisi Gutta-percha dan AH Plus sebesar 11.12±7.20 mm2. Peningkatan densitas pada bahan pengisi gutta-percha dan Guttaflow sebesar 12.71±10.30%, pada bahan pengisi gutta-percha dan Endomethasone sebesar 10.85±6.48%, dan pada bahan pengisi Gutta-percha dan AH Plus sebesar 6.61±5.61%.…”

Apical termination of root canal procedures—ambiguity or disambiguation?

“…In a unique study that addressed tooth anatomy risk factors that influenced root canal working length accessibility, Tang et al (Tang et al 2011) found that tooth type, root canal curvature, canal calcification, and retreatment were primary risk factors in an independent factor analysis. However, using a multiple-factor regression model, root curvature and canal calcification were found to most significantly influence working length accessibility and ultimate treatment success.…”

Traditional and contemporary techniques for optimizing root canal irrigation

“…Root canal anatomy is highly varied and often presents with many difficulties in terms of allowing access to the whole canal system. A recent study 1 investigated the effect of anatomical factors on working length accessibility and found, unsurprisingly, that complex anatomy such as canal curvature and calcification significantly increased the difficulty of achieving working length. Other variations include multiple and lateral canals, apical deltas and variations in the transverse plane such as C-canals.…”