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Mello‐Moura ACV, Moura‐Netto C, Araki AT, Guedes‐Pinto AC, Mendes FM. Ex vivo performance of five methods for root canal length determination in primary anterior teeth. International Endodontic Journal, 43, 142–147, 2010.

Aim  To evaluate in a laboratory setting the performance of five methods for the determination of root canal length in primary anterior teeth.

Methodology  Twenty extracted primary incisors, with at least two‐thirds of the root, were used. After access cavity preparation, the teeth were embedded in alginate mixed with 0.9% sodium chloride solution. One operator determined root canal length using tactile sense (T), conventional radiography (RAD), tactile sense and conventional radiography (T + RAD), digital radiography (RDIG) and Root ZX electronic apex locator (EAL) methods. Next, the actual length (AL) was visually determined using a K‐file from the coronal reference …