Retrograde amalgam filling: a scanning electron microscopic study

Moodnik, Richard M.; Levey, Marc; Besen, Martin A.; Borden, Bernard G.

doi:10.1016/s0099-2399(75)80247-0

Cited by 66 publications

(31 citation statements)

References 4 publications

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“…The SEM has been used to determine the marginal adaptation of various filling materials to the surrounding tooth structures (12, [14][15][16][17][18]. The microscopes were developed because of high magnification and good resolution, not possible with optical microscopes.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to these techniques, confocal microscopy (4, 13) and scanning electron microscopy (SEM) have also been used to assess theadaptation and sealing ability of commonly used and potential root-end filling materials (12, [14][15][16]. Using the confocal microscope, Torabinejad et al (13) compared the sealing ability of MTA with those of amalgam and Super-EBA and found that MTA leaked significantly less than the others.…”

mentioning

confidence: 99%

“…Moodnik et al (14) used the SEM to measure "defects" in the amalgam-dentin interface on amalgam reirofillings and found gaps ranging from 6 to 150 /xm. Tanzilli et al (15) used SEM to determine marginal adaptation of some retrofiUing techniques to dentin and found that cold-burnished gutta-percha had smaller defects than heat-sealed gutta-percha and amalgam as root-end filling materials.…”

mentioning

confidence: 99%

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Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Torabinejad

Smith²,

Kettering³

et al. 1995

Journal of Endodontics

299

211

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This study investigated the marginal adaptation of mineral trioxide aggregate (MTA) as a root-end filling material, compared with commonly used rootend filling materials by scanning electron microscopy (SEM). Eighty-eight single-rooted freshly extracted human teeth were cleaned, shaped, and obturated with gutta-percha and root canal sealer. Following root-end resection and cavity preparation, the root-end cavities were filled with amalgam, Super-EBA, Intermediate Restorative Material (IRM), or MTA. Using a slow-speed diamond saw, 40 roots were longitudinally sectioned into two halves. Resin replicas of resected root ends of the remaining nonsectioned roots were also prepared. After mounting longitudinal sections of roots and resin replicas of resected roots on aluminum stubs, the distance between the test rootend filling materials and surrounding dentin was measured at four points under SEM. Examination of the original samples showed numerous artifacts in the longitudinal sections of the specimens. In contrast, the resin replicas of resected and filled root ends had no artifacts. Statistical analysis of data comparing gap sizes between the root-end filling materials and their surrounding dentin shows that MTA had better adaptation compared with amalgam, Super-EBA, and IRM.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Torabinejad

Smith²,

Kettering³

et al. 1995

Journal of Endodontics

299

211

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“…Root end filling: Replantation of teeth sealed by a filling material seems to be more successful than replantation without root canal filling. 14,22,100, 103 Moodnik et al 104 and Oynick 105 do not agree with the use of amalgam.…”

Section: Discussionmentioning

confidence: 98%

Intentional Replantation: A Procedure as a Last Resort

Rouhani¹,

Javidi²,

Habibi³

et al. 2011

The Journal of Contemporary Dental Practice

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Aim: To address the indications, contraindications, surgical procedure, complications following treatment, factors influencing the results and success rate of intentional replantation procedure.Background: Intentional replantation is extraction of a tooth to do extraoral root canal therapy, curettage of apical lesion when present, and its replacement in its socket. It has been proposed as an alternative to routine extraction; however, it should be considered a last resort because the root may be fractured during extraction.

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“…Evaluation of marginal adaptation of root end filling materials by means of scanning electron microscopy (SEM) can provide information concerning their sealing capacity (10,11) . SEM has been used in this study because it was proven to be a reliable method of examining features such as surface topography (12) , measuring the marginal gaps at the interface and the percentage in gap formation under higher image magnifications (13) .…”

Section: Discussion:-mentioning

confidence: 99%

Adaptability of Different Root End Filling Materials.

Shershaby¹

2018

IJAR

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Introduction:The purpose of this study was to evaluate and compare the adaptability of TotalFill, Mineral trioxide aggregate (MTA) and Intermediate restorative material (IRM) on human extracted teeth. Methods: Thirty single rooted freshly extracted human teeth with mature apices were selected. Clinical crowns were sectioned at the cement-enamel junction to create a standardized length of about 16 mm. The root canals were instrumented in a crown down technique by using Protaper rotary nickel titanium files. Root canals were obturated with Gutta-percha and resin based sealer. The root-ends were then resected perpendicular to the long axes of the teeth and ultrasonically prepared to receive a retrofilling. Under scanning electron microscopy, the gaps between the material and dentinal wall were measured. Results:The maximum mean gap measurements were found in IRM, whereas the minimum mean gap measurements were found in TotalFill. Conclusion: None of the tested materials had a perfect marginal adaptation to the walls of the prepared retro cavity.

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Retrograde amalgam filling: a scanning electron microscopic study

Cited by 66 publications

References 4 publications

Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials

Intentional Replantation: A Procedure as a Last Resort

Adaptability of Different Root End Filling Materials.

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