Radiographic voids and leakage along root fillings <i>in vitro</i>

Beyer-Olsen, Eva Margrete Stermer; Ørstavik, Dag; Eriksen, Harald M.

doi:10.1111/j.1365-2591.1983.tb01296.x

Cited by 17 publications

(8 citation statements)

References 5 publications

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“…The relationship between radiographic quality and apical leakage has been studied previously (Beyer-Olsen et al 1983, Kersten et al 1987, Dummer el: al. 1993 with iittle, if any, correlation normally being found.…”

Section: Discussionmentioning

confidence: 99%

A laboratory study of root fillings in teeth obturated by lateral condensation of gutta‐percha or Thermafil obturators

et al. 1994

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The aim of this in vitro study was to assess the quality of root canal obturation and degree of apical dye penetration in teeth root-filled with either laterally condensed cold gutta-percha or Thermafil obturators. A total of 144 extracted teeth with single roots were included in the study. All canals were prepared with a standard technique using a sonic handpiece with copious irrigation. Radiographs taken of the teeth to show the maximum degree of canal curvature were then exposed and the angle, radius and position of curvature determined. This information about the canals, together with their working length and diameter at end-point was used to divide the teeth into two experimental and two control groups. A total of 71 teeth were filled with Thermafil obturators, 69 with lateral condensation while four teeth remained unfilled and acted as controls. Following obturation, the teeth were radiographed in two planes and the technical quality of fill assessed on a four-point scale. All access cavities were then sealed and the teeth immersed in dye for 48 h before being split longitudinally. Linear dye penetration via the apical foramen was then assessed. In both straight and curved canals obturation with Thermafil obturators was significantly quicker (P < 0.001) then lateral condensation. Apical extrusion of gutta-percha occurred significantly more often in straight canals obturated with lateral condensation (P < 0.005) but there was no difference in curved canals. There was little difference in the radiographic quality of fill in the apical halves of the root fillings but Thermafil obturators were significantly better in the coronal halves when viewed from the proximal.(ABSTRACT TRUNCATED AT 250 WORDS)

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Section: Discussionmentioning

confidence: 99%

A laboratory study of root fillings in teeth obturated by lateral condensation of gutta‐percha or Thermafil obturators

et al. 1994

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“…The results from the dye penetration test have been reported in detail by Beyer-Olsen et al (1983) and are illustrated in Fig. 4.…”

Section: Y E Penetration Testmentioning

confidence: 99%

Adhesive properties and leakage of root canal sealers in vitro

1983

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“…Some studies have combined radiographs, dye penetration and PGP to determine the quality of a root canal filling 9 whereas other studies used radiographs and dye penetration 10,11,27 In the studies of Beyer-Olsen and Kersten 27 , the correlation between the different tests was evaluated. Kersten et al 9 showed limited correlation between the bucco-lingual radiograph and the mesio-distal radiograph, the dye penetration and the stereomicroscopic evaluation.…”

Section: Introductionmentioning

confidence: 99%