Non-Cochrane · intervention · PM42639523
The Contribution of the Self-adjusting File in Debris Removal in Root Canal Retreatment: A Systematic Review and Meta-analysis of in Vitro Studies.
El Abbassi Salma, Sakout Majid · Iranian endodontic journal · 2026 · PubMed · doi:10.22037/iej.v21i1.50916
Findings
4 findings
| Population | ||||
|---|---|---|---|---|
| Extracted mature permanent teeth undergoing endodontic retreatment | Adjunctive Self-adjusting File (SAF) after root canal filling removal | Retreatment without supplementary SAF (conventional filling removal only) | Residual root canal filling material (volume, micro-CT) In vitro; extracted mature permanent teeth; micro-CT assessment · Full dataset (all canal morphologies) | SMD -0.50 [-0.82, -0.18] GRADE not reported 5 studies |
| Extracted mature permanent teeth undergoing endodontic retreatment with oval canals | Adjunctive Self-adjusting File (SAF) after root canal filling removal | Retreatment without supplementary SAF (conventional filling removal only) | Residual root canal filling material (volume, micro-CT) In vitro; extracted mature permanent teeth; micro-CT assessment · Oval canals | SMD -0.55 [-1.07, -0.02] GRADE not reported 2 studies |
| Extracted mature permanent teeth undergoing endodontic retreatment with curved canals | Adjunctive Self-adjusting File (SAF) after root canal filling removal | Retreatment without supplementary SAF (conventional filling removal only) | Residual root canal filling material (volume, micro-CT) In vitro; extracted mature permanent teeth; micro-CT assessment · Curved canals | SMD -0.27 [-0.68, 0.15] GRADE not reported 2 studies |
| Extracted mature permanent teeth undergoing endodontic retreatment with severely curved canals | Adjunctive Self-adjusting File (SAF) after root canal filling removal | Retreatment without supplementary SAF (conventional filling removal only) | Residual root canal filling material (volume, micro-CT) In vitro; extracted mature permanent teeth; micro-CT assessment · Severely curved canals | SMD -1.06 [-1.69, -0.43] GRADE not reported 1 study |
Included primary studies 28
Open in Studies| Study | Year | Also included by | Outcomes it informs here | Trial data |
|---|---|---|---|---|
| Aslan 2016 Degradation of benzenesulfonate to sulfite in bacterial extract. PMID:201612 | 1977 | 2 other reviews | not stated | not extracted yet |
| Kumar 2020 matched by author and year (probable) | NR | 2 other reviews | not stated | not extracted yet |
| Abramovitz 2012 The effectiveness of a self‐adjusting file to remove residual gutta‐percha after retreatment with rotary files DOI:10.1111/j.1365-2591.2011.01988.x | 2012 | this review only | not stated | not extracted yet |
| Abramovitz 2012 The effectiveness of a self-adjusting file to remove residual gutta-percha after retreatment with rotary files. PMID:22283664 | 2012 | this review only | not stated | not extracted yet |
| Alves 2012 EMC viral infection of the coronary blood vessels in newborn mice: viral vasculitis. PMID:201264 | 1977 | this review only | not stated | not extracted yet |
| Aslan 2016 matched by author and year (probable) | NR | this review only | not stated | not extracted yet |
| Keles 2014 Oval-shaped canal retreatment with self-adjusting file: a micro-computed tomography study DOI:10.1007/s00784-013-1086-0 | 2013 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Keles 2014 (flat-oval SEM) Retreatment of flat-oval root canals with a self-adjusting file: an SEM study. PMID:25311342 | 2014 | this review only | not stated | not extracted yet |
| Keles 2014 (oval canals micro-CT) Oval-shaped canal retreatment with self-adjusting file: a micro-computed tomography study. PMID:23959377 | 2014 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Keles 2014 (SEM) Retreatment of flat-oval root canals with a self-adjusting file: An SEM study DOI:10.4012/dmj.2014-054 | 2014 | this review only | not stated | not extracted yet |
| Keles 2016 The efficacy of laser, ultrasound and self‐adjustable file in removing smear layer debris from oval root canals following retreatment: A… DOI:10.1111/aej.12145 | 2016 | this review only | not stated | not extracted yet |
| Keles 2016 The efficacy of laser, ultrasound and self-adjustable file in removing smear layer debris from oval root canals following retreatment: A… PMID:26786709 | 2016 | this review only | not stated | not extracted yet |
| Kiraz 2023 Micro-CT evaluation of the removal of root fillings using rotary and reciprocating systems supplemented by XP-Endo Finisher, the… PMID:38053777 | 2023 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Machado 2018 Effects of preparation with the Self‐Adjusting File, <scp>TRUS</scp>hape and <scp>XP</scp>‐endo Shaper systems, and a supplementary step… DOI:10.1111/iej.13039 | 2018 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Machado 2018 Effects of preparation with the Self-Adjusting File, TRUShape and XP-endo Shaper systems, and a supplementary step with XP-endo Finisher R… PMID:30417931 | 2019 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Pawar 2016 The efficacy of the Self-Adjusting File versus WaveOne in removal of root filling residue that remains in oval canals after the use of… PMID:26957798 | 2016 | this review only | not stated | not extracted yet |
| Silva 2020 Comparison of the Self-Adjusting File and Hedström File Used as Supplementary Instruments for the Remaining Filling Material Removal… DOI:10.14744/eej.2019-07-067 | 2020 | this review only | not stated | not extracted yet |
| Silva 2020 Comparison of the Self-Adjusting File and Hedström File Used as Supplementary Instruments for the Remaining Filling Material Removal… PMID:32766520 | 2020 | this review only | not stated | not extracted yet |
| Simsek 2014 3D Analysis of D-RaCe and Self-Adjusting File in Removing Filling Materials from Curved Root Canals Instrumented and Filled with Different… DOI:10.1155/2014/836513 | 2014 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Simsek 2014 3D analysis of D-RaCe and self-adjusting file in removing filling materials from curved root canals instrumented and filled with different… PMID:25114976 | 2014 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Solomonov 2012 Self-Adjusting Files in Retreatment: A High-resolution Micro–Computed Tomography Study DOI:10.1016/j.joen.2012.06.019 | 2012 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Solomonov 2012 Self-adjusting files in retreatment: a high-resolution micro-computed tomography study. PMID:22892752 | 2012 | this review only | Residual root canal filling material (volume, micro-CT) | not extracted yet |
| Voet 2012 Removal of Gutta-percha from Root Canals Using the Self-Adjusting File DOI:10.1016/j.joen.2012.03.003 | 2012 | this review only | not stated | not extracted yet |
| Voet 2012 Removal of gutta-percha from root canals using the self-adjusting file. PMID:22703671 | 2012 | this review only | not stated | not extracted yet |
| Yuruker 2016 Efficacy of Combined Use of Different Nickel-Titanium Files on Removing Root Canal Filling Materials DOI:10.1016/j.joen.2015.11.019 | 2016 | this review only | not stated | not extracted yet |
| Yuruker 2016 Efficacy of Combined Use of Different Nickel-Titanium Files on Removing Root Canal Filling Materials. PMID:26778268 | 2016 | this review only | not stated | not extracted yet |
| Zhekov 2024 Differential expression of the tumor necrosis factor/cachectin gene by blood and lung mononuclear phagocytes. PMID:3202418 | 1988 | this review only | not stated | not extracted yet |
| Zhekov 2024 Study on the Synthesis, Antioxidant Properties, and Self-Assembly of Carotenoid-Flavonoid Conjugates. PMID:32024181 | 2020 | this review only | not stated | not extracted yet |
Overlap with other reviews
Reviews that include the same primary studies are not independent evidence. Shared counts match studies by PMID, DOI or NCT, and otherwise by author and year (a probable match). Only the non-Cochrane dental reviews have study lists, so overlap with Cochrane reviews is not counted yet.
Review question
| Element | Planned (methods) | Found (results) |
|---|---|---|
| Population | Extracted mature permanent teeth | Extracted teeth with oval, curved or severely curved canals (16 studies; meta-analysis 5 studies) |
| Intervention | Additional use of the Self-adjusting File (SAF) after conventional root canal retreatment | Adjunctive SAF after filling removal (n=16) |
| Comparison | Retreatment without SAF; retreatment with an additional cleaning step with SAF (before/after within the same sample) | Retreatment without SAF or with other supplementary methods (n=16) |
| Outcomes | Quality of canal cleanliness (residual filling material) at the end of retreatment; meta-analysis on volume of residual filling by micro-CT | Residual filling material volume by micro-CT (5 studies, 10 comparisons); other methods narrative |
| Study designs | In vitro studies on mature extracted permanent teeth requiring retreatment | In vitro studies (n=16); risk of bias: 11 moderate, 5 low |
| Timing | Not specified | Not specified |