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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.

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Intervention or exposure

Comparison

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Review versions

162 questions in 21 reviews · cluster CL0190

current versions

No studies 28 · 17.3%Ungraded 98 · 60.5%Very low 27 · 16.7%Low 9 · 5.6%Moderate 0 · 0%High 0 · 0%

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.

Intervention categories, outcome domains and clusters are a proposed key pending human validation. Clear all filters

Question	Effect	Evidence	Status / GRADE
Er:YAG laser surface debridement before bone augmentation vs Plastic curettes plus saline solution before bone augmentation Implant failure · People with at least one dental implant affected by peri-implantitis · 6 months Interventions for replacing missing teeth: treatment of peri‐implantitis (2012) · Cochrane	Six months after treatment there were no implant failures.	1 study · 30 participants	Ungraded
Er:YAG laser surface debridement before bone augmentation vs Plastic curettes plus saline solution before bone augmentation Change in probing pocket depth (PPD reduction) · People with at least one dental implant affected by peri-implantitis · 6 months Interventions for replacing missing teeth: treatment of peri‐implantitis (2012) · Cochrane	Six months after treatment there were no statistically significant differences for PPD reduction.	1 study · 30 participants	Ungraded
Er:YAG laser surface debridement before bone augmentation vs Plastic curettes plus saline solution before bone augmentation Change in soft tissue recession (REC) · People with at least one dental implant affected by peri-implantitis · 6 months Interventions for replacing missing teeth: treatment of peri‐implantitis (2012) · Cochrane	Six months after treatment there were no statistically significant differences for soft tissue recessions.	1 study · 30 participants	Ungraded
Er:YAG laser debridement vs Manual debridement plus chlorhexidine irrigation/gel Recurrence of peri-implantitis · People with at least one dental implant affected by peri-implantitis · 6 months Interventions for replacing missing teeth: treatment of peri‐implantitis (2012) · Cochrane	RR 0.25 [0.03, 2.06]	2 studies · 40 participants	Ungraded
Er:YAG laser debridement vs Manual debridement plus chlorhexidine irrigation/gel Change in probing pocket depth (PPD) · People with at least one dental implant affected by peri-implantitis · 6 months Interventions for replacing missing teeth: treatment of peri‐implantitis (2012) · Cochrane	No statistically significant differences for change in PPD.	1 study · 20 participants	Ungraded
Erbium:YAG laser (implant exposure) vs Flap elevation at implant exposure Biological complications · Patients undergoing implant exposure (second-stage surgery) Interventions for replacing missing teeth: management of soft tissues for dental implants (2012) · Cochrane	RR 3.0 [0.14, 65.90]	1 study · 20 participants	Ungraded
Laser (low level) vs Placebo/sham/no treatment Oral mucositis (any severity) · Patients with cancer receiving radiotherapy, chemotherapy or targeted therapies · Median 28 days Interventions for preventing oral mucositis for patients with cancer receiving treatment (2011) · Cochrane	RR 0.91 [0.71, 1.17]	5 studies · 234 participants	Ungraded
Laser (low level) vs Placebo/sham/no treatment Oral mucositis (moderate to severe) · Patients with cancer receiving radiotherapy, chemotherapy or targeted therapies · Median 28 days Interventions for preventing oral mucositis for patients with cancer receiving treatment (2011) · Cochrane	RR 0.64 [0.38, 1.08]	2 studies	Ungraded
Laser (low level) vs Povidone Oral mucositis (moderate to severe) · Patients with cancer receiving radiotherapy, chemotherapy or targeted therapies · Median 28 days Interventions for preventing oral mucositis for patients with cancer receiving treatment (2011) · Cochrane	RR 0.29 [0.16, 0.54]	1 study · 50 participants	Ungraded
Laser (low level) vs Placebo/sham/no treatment Oral mucositis (severe) · Patients with cancer receiving radiotherapy, chemotherapy or targeted therapies · Median 28 days Interventions for preventing oral mucositis for patients with cancer receiving treatment (2011) · Cochrane	RR 0.2 [0.06, 0.62]	2 studies	Ungraded
Laser (low level) vs Povidone Oral mucositis (severe) · Patients with cancer receiving radiotherapy, chemotherapy or targeted therapies · Median 28 days Interventions for preventing oral mucositis for patients with cancer receiving treatment (2011) · Cochrane	RR 0.02 [0, 0.31]	1 study · 50 participants	Ungraded
Low level laser therapy vs Sham (placebo) laser treatment Mucositis severity (mild to moderate) · People with cancer receiving chemotherapy or radiotherapy (or both) who have oral mucositis Interventions for treating oral mucositis for patients with cancer receiving treatment (2010) · Cochrane	RR 5.28 [2.30, 12.13]	2 studies · 57 participants	Ungraded