Endodontic failures—An analysis based on clinical, roentgenographic, and histologic findings

Seltzer, Samuel; Bender, I.B.; Smith, Jennifer E.; Freedman, Irwin; Nazimov, Harold

doi:10.1016/0030-4220(67)90546-4

Cited by 152 publications

(81 citation statements)

References 21 publications

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“…Interestingly enough is the fact that low-grade inflammation was present in most of the specimen at the time of histology. This is in agreement with the findings of Brynolf (11), Rowe (12), and Seltzer (13). Green et al (14), question the findings of Brynolf and state that her findings are not applicable to current clinical practice because of differences both in treatment technique and methods of radiographic and histological analysis; However, even Green et al demonstrated that the 19 specimens without periapical radiolucencies displayed a variety of histological findings varying from none to slight to moderate inflammation.…”

Section: Discussionsupporting

confidence: 81%

Healing of Apical Periodontitis After Endodontic Treatment With and Without Obturation in Dogs

Sabeti¹,

Nekofar²,

Motahhary³

et al. 2006

Journal of Endodontics

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Section: Discussionsupporting

confidence: 81%

Healing of Apical Periodontitis After Endodontic Treatment With and Without Obturation in Dogs

Sabeti¹,

Nekofar²,

Motahhary³

et al. 2006

Journal of Endodontics

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“…Iatrogenic root perforations are the second most common reason for endodontic failure. 3,4 The frequency of iatrogenic root perforations has been reported to range from 3% to 10%.3,4,5 This article will focus on iatrogenic perforations and their avoidance.…”

Section: Introductionmentioning

confidence: 99%

Perforations in endodontics

S¹,

Sharma²

2017

Int j curr adv res

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Aim:To determine the various causes of perforations and how to overcome problems related to perforation in endodontic procedure Objective: The objective of this study is to have a detailed idea on perforations in endodontics Back Ground: Prime objective of an access cavity is to provide straight line pathway to the apical foramen. Perforation occurs due to excess removal of tooth structure or may occur during attempts to locate canals. If straight line access is not attained there is high risk for intracanal accidents. Perforation need to be recognised early to avoid subsequent damage to periodontal tissues with instruments.Reason: This study is done to have a detailed idea on causes of perforations of root canal and problems related to it. With this study we can have a clear idea on perforations in endodontics. INTRODUCTIONCanal perforation can be identified by blood in the cavity or patients complains of taste of NaOcl. Initially site of perforation must be found, the floor of the preparation is cleansed, the bleeding stooped and MTA is then applied. Root perforations occurs due to three errors creating a ledge and persisting until a perforation develop.A perforation is a communication between the root canal system and the supporting tissues of the tooth or oral cavity.1,2 Perforations may be iatrogenic, resorptive or carious in origin. Iatrogenic root perforations are the second most common reason for endodontic failure.3,4 The frequency of iatrogenic root perforations has been reported to range from 3% to 10%.3,4,5 This article will focus on iatrogenic perforations and their avoidance. Furcal perforations. Cervical PerforationCervical perforations occur when large instrument is used to widen the canal orifice, like in case of gates glidden and peeso drill. It is indicated with the presence of blood in the canal. Midroot PerforationMidroot perforation is caused by zipping, it usually occurs in the distal wall of a curved mesial root of mandibular molar. International Journal of Current Advanced Research PERFORATIONS IN ENDODONTICS Syed Shihaab S and Subash SharmaDepartment of Conservative and Endodontics, Saveetha Dental College A R T I C L E I N F O A B S T R A C T Aim:To determine the various causes of perforations and how to overcome problems related to perforation in endodontic procedure Objective: The objective of this study is to have a detailed idea on perforations in endodontics Back Ground: Prime objective of an access cavity is to provide straight line pathway to the apical foramen. Perforation occurs due to excess removal of tooth structure or may occur during attempts to locate canals. If straight line access is not attained there is high risk for intracanal accidents. Perforation need to be recognised early to avoid subsequent damage to periodontal tissues with instruments.Reason: This study is done to have a detailed idea on causes of perforations of root canal and problems related to it. With this study we can have a clear idea on perforations in endodontics. INTRODUCTIONCanal perforation can ...

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“…Lateral canals and apical ramifications can make some areas of the root canal inaccessible to instruments 9,23) . Moreover, such areas can harbor significant numbers of bacteria, providing them with easy access to periradicular tissue, which then leads to the development of disease 11,14,16) . Such areas are difficult to reach, clean, disinfect, and fill during treatment.…”

Section: Introductionmentioning

confidence: 99%

Effect of “Apical Clearing” and “Apical Foramen Widening” on Apical Ramifications and Bacterial Load in Root Canals

Yadav

Shah

Naseem

et al. 2014

Bull. Tokyo Dent. Coll.

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The purpose of the study was to determine the effect of apical clearing and apical foramen widening in reducing apical ramifications and bacterial load in the apical third of root canals. The mesio-buccal roots of 21 maxillary first molar teeth were inoculated with Enterococcus faecalis suspension using a sterile pipette. Samples were incubated at 37°C for 72 hrs and divided into 3 groups: Group A, control group (n=5), no preparation; Group B (n=8) conventional preparation alone; and Group C (n=8), apical clearing and foramen widening in addition to conventional preparation. Bacterial counts were semi-quantitatively analyzed pre-and post-preparation. Samples were demineralized with 5% nitric acid after injection of India ink. Cross sections were obtained at every 0.5 mm from the apex to 3 mm of the root using a vibratome and viewed under a stereomicroscope at 64×magnification to locate any debris or apical ramifications. The Kruskal-Wallis and Mann-Whitney U tests were used for the statistical analysis. A statistically significant difference was observed (p value 0.006) in the number of ramifications among the 3 groups. Group C had a lower average number of ramifications (1) than Group B (2.5) or A (4). The debris score was analyzed at each level (0.5-3 mm). A statistically significant difference was observed at 0.5 mm and 1 mm between Group A and C (p=0.0041) and Group B and C (p=0.0050), whereas no difference was found between Group A and B (p>0.05). These results indicate that there was less debris and fewer apical ramifications in Group C. The microbiological study revealed a lower number of colony forming units (10 ). These results suggest that apical widening and clearing facilitates removal of apical ramifications and bacterial load within root canals.

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Endodontic failures—An analysis based on clinical, roentgenographic, and histologic findings

Cited by 152 publications

References 21 publications

Healing of Apical Periodontitis After Endodontic Treatment With and Without Obturation in Dogs

Healing of Apical Periodontitis After Endodontic Treatment With and Without Obturation in Dogs

Perforations in endodontics

Effect of “Apical Clearing” and “Apical Foramen Widening” on Apical Ramifications and Bacterial Load in Root Canals

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