The significance of the presence of foreign material periapically as a cause of failure of root treatment

Yusuf, Harmas Yazid

doi:10.1016/0030-4220(82)90196-7

Cited by 89 publications

(73 citation statements)

References 8 publications

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“…As suggested previously (13,33), healing in teeth with short root fillings could be enabled solely by the surgical resection of the infected portion of the root. In teeth with long root fillings, healing could be enabled by the surgical removal of extruded filling material or dentin chips colonized by microorganisms (34,35).…”

Section: Discussionmentioning

confidence: 99%

Treatment Outcome in Endodontics: The Toronto Study—Phases 3, 4, and 5: Apical Surgery

Barone

Dao

Basrani

et al. 2010

Journal of Endodontics

102

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Section: Discussionmentioning

confidence: 99%

Treatment Outcome in Endodontics: The Toronto Study—Phases 3, 4, and 5: Apical Surgery

Barone

Dao

Basrani

et al. 2010

Journal of Endodontics

102

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“…98 Extrusion of debris into the periapical tissues is undesirable and may play a role in flare-ups and in treatment failures. 99 It is therefore preferable to prevent accumulation of dentine debris in the apical portion of the canal.…”

Section: Apical Patencymentioning

confidence: 99%

The principles of techniques for cleaning root canals

Parashos

Messer

2007

Australian Dental Journal

125

118

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Chemomechanical preparation of the root canal includes both mechanical instrumentation and antibacterial irrigation, and is principally directed toward the elimination of micro-organisms from the root canal system. A variety of instruments and techniques have been developed and described for this critical stage of root canal treatment. Since their introduction in 1988, nickel-titanium (NiTi) rotary instruments have become a mainstay in clinical endodontics because of their exceptional ability to shape root canals with potentially fewer procedural complications. Safe clinical usage of NiTi instruments requires an understanding of basic metallurgy of the alloy including fracture mechanisms and their correlation to canal anatomy. This paper reviews the biologic principles of preparing root canals with an emphasis on correct use of current rotary NiTi instrumentation techniques and systems. The role and properties of contemporary root canal irrigants is also discussed.Key words: Nickel-titanium alloy, root canal instrumentation, rotary preparation, irrigation, endodontics.Abbreviations and acronyms: EDTA = ethylenediamene tetraacetic acid; NaOC1 = sodium hypochlorite; NIET = non-instrumentation endodontic treatment; NiTi = nickel titanium; PAD = photo activated disinfection.

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“…21), especially in the presence of obvious or even unidentified apical resorption (Brynolf 1967), files placed to the apical extent of the root as viewed radiographically will likely be outside the confines of the canal and create potential damage to the root anatomy at that point (Ricucci 1998;Ricucci & Langeland 1998). It is also possible that this technique may serve to inoculate the apical tissues with bacteria and material debris that may cause an adverse reaction or result in persistent inflammation, a concept that was considered as unacceptable by Ottolengui in 1922(Ottolengui 1922) and highlighted by Yusuf and Love and Firth, when examining biopsies from lesions from teeth that required periapical surgery due to persistent inflammation (Yusuf 1982;Love & Firth 2009). Here also, a middle-of-the-road philosophy has been proposed, that is, cleaning and shaping the canal to the entire length of the root and then backing up or retreating into the canal sufficiently to develop a constriction or stop inside of the root where the dentin terminates for further intracanal procedures (Simon 1994).…”

Section: Status Of the Dental Pulp And Periapical Tissuesmentioning

confidence: 99%

Apical termination of root canal procedures—ambiguity or disambiguation?

Gutmann

2016

Evid.-based endod

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The issues of working length determination, its apical extent, and the position of the final root canal filling have been controversial, as differing points of view have existed between the biologically based and clinically based endodontic gurus regarding this concept for decades. Coupled with the following issues, it has become somewhat of an empirical bastion for clinicians, especially those in the limelight or who use social media to augment their clinical prowess: (1) the variable anatomy of the root apex; (2) where to terminate canal enlarging and shaping apically; (3) status of the accessory communications apically; (4) size of the apical preparation; (5) ability to debride the apical extent of the root canal and remove both bacteria and biofilm; (6) response of the periapical tissues, when both vital and necrotic, to the intracanal filling materials and techniques that may impinge on these tissues; and (7) long-term outcomes and assessments of the procedures rendered. For purposes of succinctness, the concept of working length, the apical position of instrument termination, and the position of the final filling will be addressed simultaneously in this paper. Beyond the apex-danger lurksCravens JE. Immediate root filling. Trans Ill State Dent

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The significance of the presence of foreign material periapically as a cause of failure of root treatment

Cited by 89 publications

References 8 publications

Treatment Outcome in Endodontics: The Toronto Study—Phases 3, 4, and 5: Apical Surgery

Treatment Outcome in Endodontics: The Toronto Study—Phases 3, 4, and 5: Apical Surgery

The principles of techniques for cleaning root canals

Apical termination of root canal procedures—ambiguity or disambiguation?

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