Non-Cochrane · intervention · PM41139814
Influence of Engine-Driven NiTi Files on the Effectiveness and Technical Quality of Endodontic Treatment Performed by Undergraduate Students: A Systematic Review and Meta-Analysis.
Barbosa Monique Corrêa Rocha Ferrari, Ribeiro Elidiane Elias, Pinto Karem Paula, et al. · International endodontic journal · 2026 · PubMed · doi:10.1111/iej.70056
Findings
Population Patients receiving primary non-surgical root canal treatment performed by undergraduate dental students
9 findings
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Adequate overall quality of root canal treatment Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 4.52 [1.55, 13.16] Low Downgraded: risk of bias, imprecision 3 studies · 824 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Adequate root canal obturation length Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 2.19 [1.60, 3.02] Low Downgraded: risk of bias, imprecision 3 studies · 1131 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Procedural errors (overall) Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 0.70 [0.40, 1.25] Low Downgraded: risk of bias, imprecision 4 studies · 1208 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Instrument separation Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 1.13 [0.66, 1.94] Low Downgraded: risk of bias, imprecision 4 studies · 1759 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Adequate root canal obturation homogeneity Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 3.35 [0.91, 12.28] Low Downgraded: risk of bias, imprecision 2 studies · 263 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Ledge formation Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 0.35 [0.17, 0.74] Low Downgraded: risk of bias, imprecision 3 studies · 1502 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Overfilling Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 0.91 [0.55, 1.51] Low Downgraded: risk of bias, imprecision 4 studies · 2142 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Perforation Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 0.74 [0.48, 1.14] Low Downgraded: risk of bias, imprecision 3 studies · 1502 participants |
| Engine-driven NiTi instrumentation (rotary or reciprocating) | Stainless-steel hand instrumentation | Apical transportation Post-treatment periapical radiographic assessment · Undergraduate dental student clinics | OR 0.68 [0.35, 1.32] Low Downgraded: risk of bias, imprecision 2 studies · 1010 participants |
Included primary studies 14
Open in Studies| Study | Year | Also included by | Outcomes it informs here | Trial data |
|---|---|---|---|---|
| Almanei 2018 Pars intermedia ACTH and MSH content: effect of adrenalectomy, gonadectomy and a neurotropic (noise) stress. PMID:201881 | 1977 | this review only | not stated | not extracted yet |
| Cheung 2009 A retrospective study of endodontic treatment outcome between nickel-titanium rotary and stainless steel hand filing techniques. PMID:19567311 | 2009 | this review only | not stated | not extracted yet |
| El-Ma'aita 2024 Molar root canal treatment performed by undergraduate dental students; an observational study of procedural errors and student perception DOI:10.1186/s12909-024-05397-z | 2024 | this review only | not stated | not extracted yet |
| El-Ma'aita 2024 Molar root canal treatment performed by undergraduate dental students; an observational study of procedural errors and student perception. PMID:38649844 | 2024 | this review only | not stated | not extracted yet |
| Haug 2018 Impact of Case Difficulty on Endodontic Mishaps in an Undergraduate Student Clinic DOI:10.1016/j.joen.2018.03.012 | 2018 | this review only | not stated | not extracted yet |
| Haug 2018 Impact of Case Difficulty on Endodontic Mishaps in an Undergraduate Student Clinic. PMID:29803337 | 2018 | this review only | not stated | not extracted yet |
| Kelbauskas 2009 Quality of root canal filling performed by undergraduate students of odontology at Kaunas University of Medicine in Lithuania. PMID:19996675 | 2009 | this review only | not stated | not extracted yet |
| Marinova 2021 matched by author and year (probable) | NR | this review only | not stated | not extracted yet |
| Matoug-Elwerfelli 2022 Radiographic assessment of endodontic mishaps in an undergraduate student clinic: a 2-year retrospective study. PMID:35945941 | 2022 | this review only | not stated | not extracted yet |
| Micooğulları Kurt 2022 Quality of root canal treatment performed by undergraduate students using nickel‐titanium reciprocating versus hand instruments DOI:10.1002/jdd.13038 | 2022 | this review only | not stated | not extracted yet |
| Miçooğulları Kurt 2022 Quality of root canal treatment performed by undergraduate students using nickel-titanium reciprocating versus hand instruments. PMID:35830253 | 2022 | this review only | not stated | not extracted yet |
| Tekin 2023 matched by author and year (probable) | NR | this review only | not stated | not extracted yet |
| Tekín 2023 matched by author and year (probable) | NR | this review only | not stated | not extracted yet |
| Zajkowski 2020 matched by author and year (probable) | NR | this review only | not stated | not extracted yet |
Review question
| Element | Planned (methods) | Found (results) |
|---|---|---|
| Population | Patients submitted to root canal treatment performed by undergraduate students | Patients treated by undergraduate dental students (n=10 studies; 23 to 652 teeth per study) |
| Intervention | Engine-driven NiTi primary non-surgical root canal treatment (rotary or reciprocating) | Engine-driven NiTi files: rotary (n=7 studies) or reciprocating (n=3 studies) |
| Comparison | Stainless-steel hand root canal preparation | Stainless-steel hand files (mostly K-files, step-back technique) |
| Outcomes | Quality of root canal treatment (postoperative pain, periapical healing, length and homogeneity of root canal fillings, procedural errors) | Adequate overall quality; filling length; filling homogeneity; procedural errors; overfilling; ledges; perforation; apical transportation; instrument separation; also periapical healing and postoperative pain (single studies) |
| Study designs | Randomised and non-randomised clinical studies | Randomised clinical trials (n=5) and non-randomised studies (n=5) |
| Timing | Not specified | Follow-up reported in only two studies (minimum 1 year) |