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. 2015 Jan-Feb;18(1):66-9.
doi: 10.4103/0972-0707.148899.

In vitro evaluation of Root ZX and Raypex 6 in teeth with different apical diameters

Ugur Aydin  1 , Emrah Karataslioglu  1 , Fatih Aksoy  1 , Cihan Yildirim  1
Affiliations

In vitro evaluation of Root ZX and Raypex 6 in teeth with different apical diameters

Ugur Aydin et al. J Conserv Dent. 2015 Jan-Feb.

Abstract

Background: There is a growing interest about electronic apex locators for working length determination. There are several studies dealing with their performance in different conditions.

Aims: The aim of this study is to evaluate the accuracy of Root ZX and Raypex 6 in teeth with different apical diameters.

Materials and methods: Actual working length (AWL) of 80 single rooted teeth were determined as 0.5 mm short of apical foramen. The teeth were divided into 4 groups (n = 20). First group (G 0) included teeth with mature apices. Root canals of the other groups (G 32, G 57 and G 72) were enlarged until apical sizes of 0.32, 0.57 and 0.72 mm were obtained. Samples were embedded in alginate and electronic measurements (EM) were performed.

Statistical analysis: was achieved with Fisher exact test.

Results: Both devices revealed a high rate of success in G 0 and G 32. Their accuracy decreased significantly in G 57 and G 72 groups (P < 0.05). Intra-group results of Root ZX and Raypex 6 were similar (P > 0.05).

Conclusions: Root ZX and Raypex 6 are reliable in teeth with mature apices. At foramen diameters exceeding 0.57 mm, their accuracy is susceptible.

Keywords: Apical constriction; Raypex 6; Root ZX; electronic apex locator; working length determination.

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Conflict of interest statement

Conflict of Interest: None declared.

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