A Comparative Study of Apical Leakage of Endomethasone, Top Seal, and Roeko Seal Sealer Cements

Abstract

A comparison was made of the apical leakage of three sealers. Fifty single-root human teeth were randomly divided into 5 groups (n = 10; 3 experimental and 2 control). The teeth of the positive-control and experimental groups were instrumented with K-type files to size 45. The experimental groups were obturated by laterally-vertically, condensed gutta-percha with Endomethasone, Top Seal, or RSA sealer cements. The positive-control group was nonobturated and the negative-control group was noninstrumented. The root surfaces were then coated with nail varnish (except the apex in the experimental groups) and immersed in black ink (for 1 week at 37 degrees C). The statistical evaluation of the results obtained by clearing and cross-section techniques showed no significant differences between sealers. Leakage, as determined by the clearing technique, was significantly greater than that quantified by cross-section analysis.

Methodologies for assessment of apical and coronal leakage of endodontic filling materials: a critical review

“…It is simple, fast, performed with substances low in toxins and does not require complex equipment (3,(23)(24)(25)(26)(27). Martin et al (2) also affirmed that the technique makes it easier to observe the lateral and accessory canals, and clearly reflects the relation between the sealing material and the apical foramen. However, Malvar et al (27) stated that some of the samples submitted to clearing may present deficient demineralization, which would compromise the final transparency of the specimen.…”

“…The phenomenon of capillarity is of utmost importance in this passive method used mainly for assessing apical leakage, as the tooth apex is submerged in the dye that penetrates through any space between the canal walls and filling material (19). Next, the teeth are sectioned longitudinally, transversely, or cleared and the linear penetration of the dye is recorded (2,21,22).…”

“…Ahlberg et al (21) pointed out that immersion in acids such as nitric acid and alcohol for a long period may cause dye dissolution in this technique. Martin et al (2) showed that the clearing technique was more precise than the transverse section for detecting apical leakage, as it allows the leakage to be visualized in tenths of millimeters, while transverse sectioning only determines whether or not leakage has occurred in each section. The clearing system could not, however, be used to measure the volume of tracer ingress (28).…”

“…Thus, perfect apical sealing is desirable to prevent the remaining bacteria and their endotoxins from reaching the root apex (1,2). Apical leakage is considered to be a common cause for endodontic therapy failure, and is influenced by many variables such as different filling techniques, the physical and chemical properties of sealers and the presence or absence of a smear layer (1,3).…”

The comparison of apical microleakage of single-cone tapered gutta-percha canal filling technique with the other gutta-percha canal filling techniques using with four different canal sealers

“…Bu yöntemlerden en sık kullanılanlar enine (horizontal) kesit alınması, uzunlamasına (longitüdinal) kesit alınması ve şeffaflaştırma yöntemidir. 17,18 Bu çalışmanın amacı, boya penetrasyon ve şeffaflaştırma yöntemi kullanılarak tek kon açılı güta perka kanal dolum tekniğinin apikal sızdırmazlığının lateral kondensasyon ve Thermafil teknikle karşılaştırılmasıdır.…”