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Each row is one question a systematic review asked: who, what, compared with what, and which outcome, with the effect it found and how certain that is. Words match anywhere in the field.

Limit to evidence status or GRADE (optional)

664 questions in 25 reviews · Endodontics and dental trauma

current versions
No studies 111 · 16.7%Ungraded 417 · 62.8%Very low 69 · 10.4%Low 50 · 7.5%Moderate 16 · 2.4%High 1 · 0.2%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

QuestionEffectEvidenceStatus / GRADE
Repositioning of ankylosed teeth after osteotomy followed or not by distraction osteogenesis, or after luxation vs Conventional orthodontic treatment or follow-up with no specific treatment for ankylosis
Outcome NR · Any patient with ankylosis and displacement of permanent front teeth diagnosed by clinical and radiographic…
Interventions for treating traumatised ankylosed permanent front teeth (2015) · Cochrane
no estimate extracted0 studiesNo studies
Endodontic therapy (surgical or non-surgical) performed with the aid of one or more magnification devices (surgical microscope, endoscope or magnifying loupes) vs The same endodontic therapy performed without magnification devices (without visual enhancers)
Quality of root-end filling (retrograde/surgical treatment) · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Endodontic therapy performed with one type of magnification device (surgical microscope, endoscope or magnifying loupes) vs Endodontic therapy performed with a different type of magnification device
Quality of root-end filling (retrograde/surgical treatment) · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Root canal medications and canal filling, splinting, extraction of teeth, or surgical removal of any relevant pathology vs Each other, placebo, or no treatment
Outcome NR · Patients with single and multiple permanent teeth with evidence of any type of external root resorption irrespective… · Any follow-up period
Interventions for the management of external root resorption (2015) · Cochrane
None of the studies fulfilled our inclusion criteria and therefore no data analysis was conducted. (Main results: no RCTs that met the inclusion criteria were identified; one ongoing study, NCT00423956, potentially…0 studiesNo studies
Endodontic therapy (surgical or non-surgical) performed with the aid of one or more magnification devices (surgical microscope, endoscope or magnifying loupes) vs The same endodontic therapy performed without magnification devices (without visual enhancers)
Removal of broken (fractured) instruments from the root canal · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Endodontic therapy (surgical or non-surgical) performed with the aid of one or more magnification devices (surgical microscope, endoscope or magnifying loupes) vs The same endodontic therapy performed without magnification devices (without visual enhancers)
Total time required to complete the clinical procedure · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed procedure time; such outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Transplantation of other teeth after extraction of the ankylosed teeth vs Conventional orthodontic treatment or follow-up with no specific treatment for ankylosis
Outcome NR · Any patient with ankylosis and displacement of permanent front teeth diagnosed by clinical and radiographic…
Interventions for treating traumatised ankylosed permanent front teeth (2015) · Cochrane
no estimate extracted0 studiesNo studies
Endodontic therapy (surgical or non-surgical) performed with the aid of one or more magnification devices (surgical microscope, endoscope or magnifying loupes) vs The same endodontic therapy performed without magnification devices (without visual enhancers)
Repair of root perforations · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Endodontic therapy performed with one type of magnification device (surgical microscope, endoscope or magnifying loupes) vs Endodontic therapy performed with a different type of magnification device
Repair of root perforations · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Endodontic therapy (surgical or non-surgical) performed with the aid of one or more magnification devices (surgical microscope, endoscope or magnifying loupes) vs The same endodontic therapy performed without magnification devices (without visual enhancers)
Quality of visualisation of root canal anatomy and morphology · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Endodontic therapy (surgical or non-surgical) performed with the aid of one or more magnification devices (surgical microscope, endoscope or magnifying loupes) vs The same endodontic therapy performed without magnification devices (without visual enhancers)
Treatment success (resolution of clinical signs and symptoms with periapical radiographic healing) · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment · >=1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
None of the studies fulfilled our inclusion criteria and therefore no data analysis was conducted (three potentially eligible trials were identified from 1234 records; all were excluded).NRNo studies
Endodontic therapy performed with one type of magnification device (surgical microscope, endoscope or magnifying loupes) vs Endodontic therapy performed with a different type of magnification device
Total time required to complete the clinical procedure · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed procedure time. In the excluded trial Taschieri 2008, based on the operators' experience, completing the surgical procedure took on average four to five minutes longer for the endoscope than…NRNo studies
Endodontic therapy performed with one type of magnification device (surgical microscope, endoscope or magnifying loupes) vs Endodontic therapy performed with a different type of magnification device
Treatment success (resolution of clinical signs and symptoms with periapical radiographic healing) · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment · >=1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
None of the studies fulfilled our inclusion criteria; the only trial comparing three magnification devices (Taschieri 2008) was excluded, so no data analysis was conducted.NRNo studies
Endodontic therapy performed with one type of magnification device (surgical microscope, endoscope or magnifying loupes) vs Endodontic therapy performed with a different type of magnification device
Quality of visualisation of root canal anatomy and morphology · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Endodontic therapy performed with one type of magnification device (surgical microscope, endoscope or magnifying loupes) vs Endodontic therapy performed with a different type of magnification device
Removal of broken (fractured) instruments from the root canal · Patients of any age who received endodontic therapy and were followed up for at least 1 year after treatment
Magnification devices for endodontic therapy (2015) · Cochrane
No included study assessed this outcome; the review notes that such secondary outcomes were only sporadically reported and were never statistically assessed.NRNo studies
Fixed prostheses cemented to prepared teeth after extraction or decoronation of the ankylosed teeth vs Conventional orthodontic treatment or follow-up with no specific treatment for ankylosis
Outcome NR · Any patient with ankylosis and displacement of permanent front teeth diagnosed by clinical and radiographic…
Interventions for treating traumatised ankylosed permanent front teeth (2015) · Cochrane
no estimate extracted0 studiesNo studies
Implant-supported crowns after extraction or decoronation of the ankylosed teeth vs Conventional orthodontic treatment or follow-up with no specific treatment for ankylosis
Outcome NR · Any patient with ankylosis and displacement of permanent front teeth diagnosed by clinical and radiographic…
Interventions for treating traumatised ankylosed permanent front teeth (2015) · Cochrane
no estimate extracted0 studiesNo studies
Antibiotics (systemic) vs No antibiotics, placebo, or a different type of antibiotic
Outcome NR · Patients (mainly children and young adults) with a history of dental trauma and a diagnosis of luxation (intrusion,… · Minimum 12 months follow-up
Interventions for treating traumatised permanent front teeth: luxated (dislodged) teeth (2013) · Cochrane
Types of antibiotics: the effect of using no antibiotics, a placebo or different types of antibiotics. Main results: No randomised or quasi-randomised controlled trials were found; no study was included in this review.0 studiesNo studies
Dental repositioning vs Spontaneous re-eruption, orthodontic repositioning, or surgical repositioning
Outcome NR · Patients (mainly children and young adults) with a history of dental trauma and a diagnosis of luxation (intrusion,… · Minimum 12 months follow-up
Interventions for treating traumatised permanent front teeth: luxated (dislodged) teeth (2013) · Cochrane
Types of dental repositioning: to compare spontaneous re-eruption, orthodontic repositioning or surgical repositioning. Main results: No randomised or quasi-randomised controlled trials were found; no study was…0 studiesNo studies
Root canal medicaments vs No medicaments, placebo, or a different type of medicament
Outcome NR · Patients (mainly children and young adults) with a history of dental trauma and a diagnosis of luxation (intrusion,… · Minimum 12 months follow-up
Interventions for treating traumatised permanent front teeth: luxated (dislodged) teeth (2013) · Cochrane
Types of root canal medicaments: this was compared with no medicaments, placebo and different types of medicaments. Main results: No randomised or quasi-randomised controlled trials were found; no study was included in…0 studiesNo studies
Fixation (splinting) vs No splint, or a different type or duration of splint
Outcome NR · Patients (mainly children and young adults) with a history of dental trauma and a diagnosis of luxation (intrusion,… · Minimum 12 months follow-up
Interventions for treating traumatised permanent front teeth: luxated (dislodged) teeth (2013) · Cochrane
Types and duration of fixation: the effect of using no splint or different types of splints and their duration. Main results: No randomised or quasi-randomised controlled trials were found; no study was included in…0 studiesNo studies
Sodium hypochlorite 1.3% with MTAD final rinse vs Sodium hypochlorite 1.3% with normal saline final rinse
Adverse effects · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with EDTA 17% vs Sodium hypochlorite 1.3% with MTAD
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with EDTA 17% vs Sodium hypochlorite 1.3% with MTAD
Adverse effects · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% (also 2.5%) vs Sodium hypochlorite 1%
Change in periapical radiolucency (radiography or CBCT), up to 1 year after treatment · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 1.3% with MTAD final rinse vs Sodium hypochlorite 1.3% with normal saline final rinse
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Sodium hypochlorite 5.25% with hydrogen peroxide 3%
Adverse effects · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite (NaOCl), 2.5% to 5.25% vs Chlorhexidine, 0.2% to 2% (solution or gel)
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 0.73 [0.34, 1.56]2 studies · 62 participantsUngraded
Sodium hypochlorite 5.25% with EDTA 17% vs Sodium hypochlorite 1.3% with MTAD
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% (also 2.5%) vs Sodium hypochlorite 1%
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with EDTA 17% vs Sodium hypochlorite 1.3% with MTAD
Change in periapical radiolucency (radiography or CBCT), up to 1 year after treatment · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Change in periapical radiolucency (radiography or CBCT), up to 1 year after treatment · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Normal saline
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 0.8 [0.27, 2.5]1 study · 178 participantsUngraded
Sodium hypochlorite 1% with chlorhexidine 2% final rinse vs Sodium hypochlorite 1% with normal saline final rinse
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 1.3% with MTAD final rinse vs Sodium hypochlorite 1.3% with normal saline final rinse
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 0.9 [0.6, 1.5]1 study · 166 participantsUngraded
Chlorhexidine 0.2% vs Normal saline
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Normal saline
Proportion of participants or samples with positive bacterial growth culture, up to 72 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Proportion of participants with moderate to severe pain 72 hours to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
None of the participants in either intervention group reported moderate to severe pain persisting after day 2.1 study · 166 participantsUngraded
Sodium hypochlorite 5.25% with hydrogen peroxide 3% vs Normal saline
Mean change in health-related quality of life or participant-expressed satisfaction with the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% (also 2.5%) vs Sodium hypochlorite 1%
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% with hydrogen peroxide 3% vs Normal saline
Adverse effects · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Chlorhexidine 0.2% vs Normal saline
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Sodium hypochlorite 5.25% with hydrogen peroxide 3%
Proportion of participants with new or worsening signs/symptoms of inflammation requiring a revisit, up to 14 days after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite (NaOCl), 2.5% to 5.25% vs Chlorhexidine, 0.2% to 2% (solution or gel)
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 1% with chlorhexidine 2% final rinse vs Sodium hypochlorite 1% with normal saline final rinse
Change in periapical radiolucency (radiography or CBCT), up to 1 year after treatment · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Normal saline
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Proportion of participants with moderate to severe pain up to 6 hours after the procedure · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
RR 1.5 [0.4, 5.0]1 study · 166 participantsUngraded
Sodium hypochlorite 5% vs Sodium hypochlorite 5% with proteolytic enzyme
Adverse effects · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies
Sodium hypochlorite 5.25% vs Normal saline
Change in periapical radiolucency (radiography or CBCT), up to 1 year after treatment · Patients aged 14 to 78 years with mature permanent teeth (fully formed roots), single or multi-rooted, with pulpal or…
Irrigants for non‐surgical root canal treatment in mature permanent teeth (2012) · Cochrane
no estimate extracted0 studiesNo studies