The Influence of Different Factors on the Survival of Root Canal Fillings: A 10-Year Retrospective Study

Stoll, Norbert; Betke, Kirsten; Stachniss, Vitus

doi:10.1097/01.don.0000158229.43298.a9

Cited by 92 publications

(104 citation statements)

References 29 publications

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“…After conducting a literature search and meta-analysis, Schaeffer et al 93 concluded that teeth obturated 0-1mm from the radiographic apex showed better healing outcomes than teeth obturated greater than 1mm from the apex, while others have found that the best outcome occurs when the root filling extends to within 2mm of the radiographic apex. 94,95 The findings of these studies confirm that the apical canal may harbour a sufficient microbial load to maintain periapical inflammation, and in light of current evidence, it is recommended that canals should be instrumented and filled to within 0.5mm of the radiographic apex, unless it is clinically determined that the canal exits at a greater distance. It is also recognized that the termination point of instrumentation does not always correspond to the final level of obturation.…”

Section: Termination Point Of Cleaning Proceduresmentioning

confidence: 68%

The principles of techniques for cleaning root canals

Parashos

Messer

2007

Australian Dental Journal

131

120

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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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Section: Termination Point Of Cleaning Proceduresmentioning

confidence: 68%

The principles of techniques for cleaning root canals

Parashos

Messer

2007

Australian Dental Journal

131

120

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“…It has been well-documented in the literature that preoperative presence of a lesion adversely effects success (5,52,(54)(55)(56)(57)(58)(59). Among the nonsurgical retreatment articles included in this study that provide sufficient detail of preoperative periapical status, most reported a negative influence of apical periodontitis on the success of nonsurgical retreatment.…”

Section: Discussionmentioning

confidence: 91%

Outcomes of Nonsurgical Retreatment and Endodontic Surgery: A Systematic Review

Torabinejad

Corr

Handysides

et al. 2009

Journal of Endodontics

362

210

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Introduction: The purpose of this systematic review was to compare the clinical and radiographic outcomes of nonsurgical retreatment with those of endodontic surgery to determine which modality offers more favorable outcomes. Methods: The study began with targeted electronic searches of MEDLINE, PubMed, and Cochrane databases, followed with exhaustive hand searching and citation mining for all articles reporting clinical and/or radiographic outcomes for at least a mean follow-up of 2 years for these procedures. Pooled and weighted success rates were determined from a meta-analysis of the data abstracted from the articles. Results: A significantly higher success rate was found for endodontic surgery at 2-4 years (77.8%) compared with nonsurgical retreatment for the same follow-up period (70.9%; P < .05). At 4-6 years, however, this relationship was reversed, with nonsurgical retreatment showing a higher success rate of 83.0% compared with 71.8% for endodontic surgery (P < .05). Insufficient numbers of articles were available to make comparisons after 6 years of follow-up period. Endodontic surgery studies showed a statistically significant decrease in success with each increasing follow-up interval (P < .05). The weighted success for 2-4 years was 77.8%, which declined at 4-6 years to 71.8% and further declined at 6+ years to 62.9% (P < .05). Conversely, the nonsurgical retreatment success rates demonstrated a statistically significant increase in weighted success from 2-4 years (70.9%) to 4-6 years (83.0%; P < .05). Conclusions: On the basis of these results it appears that endodontic surgery offers more favorable initial success, but nonsurgical retreatment offers a more favorable long-term outcome. (J Endod 2009;35:930-937)

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“…In general, endodontic treatment that is done for the first time in a particular tooth has a higher long-term tooth survival rate (Imura et al, 2007). Also, the absence of periapical lesions, or the presence of smaller ones, has a better prognosis than larger lesions in terms of the success of endodontic treatment (Stoll et al, 2005). If an endodontically treated tooth presents persistent symptoms, retreatment of the affected tooth is a suitable option.…”

Section: Survival Ratesmentioning

confidence: 99%