Evidence map›Paper›PMID 40668432›Full record

SynthesisLasers in medical science2025

The role of photobiomodulation in minimizing pain during dental injections in adults and children: a systematic review and meta-analysis.

Fatemeh Shekarchi, Serlie Hartoonian, Reza Fekrazad, Seyed Sepehr Mirebeigi-Jamasbi

Abstract readSystematic ReviewMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in Lasers in medical science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Fatemeh ShekarchiDepartment of Pediatric Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Republic of Islamic, Iran.
Serlie HartoonianDepartment of Pediatric Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Republic of Islamic, Iran. serli.hart@gmail.com.
Reza FekrazadRadiation Sciences Research Center (RSRC), AJA University of Medical Sciences, Tehran, Republic of Islamic, Iran.
Seyed Sepehr Mirebeigi-JamasbiDepartment of Pediatric Dentistry, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Republic of Islamic, Iran. sepehr78mb@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This systematic review aims to evaluate the efficacy of laser-based photobiomodulation therapy (PBMT) in reducing pain associated with dental injections. The review addresses the research question: "What is the effect of PBMT on pain levels during local anesthetic injections in dental patients compared to control interventions?". A comprehensive search was conducted across PubMed, Scopus, Embase, Web of Science, and Cochrane Library databases. Studies included were prospective or retrospective clinical trials involving PBMT for pain control during dental injections. The quality of studies was assessed using the revised Cochrane Risk of Bias 2 tool. Data were extracted on patient demographics, laser parameters, and pain outcomes. A total of 14 studies were included in this systematic review, with 6 focusing on children and 8 on adults. In children, three studies indicated that PBMT effectively reduced pain, with a significant difference according to the Wong-Baker FACES Pain Rating Scale (WFPRS) but not on the Face, Legs, Activity, Cry, and Consolability (FLACC) scale. Conversely, three studies found no significant differences between PBMT and topical anesthesia. In adults, five studies demonstrated a pain-reducing effect of PBMT, though one study reported a statistically significant difference that did not achieve clinical significance. The meta-analysis revealed a statistically significant overall effect of PBMT on pain reduction in both children and adults (p < 0.05). This systematic review of the literature suggests that PBMT may help reduce discomfort associated with dental injections in both adults and children. Nonetheless, further investigation is warranted to arrive at a more definitive conclusion on this topic.

Indexed as

InjectionsLow-Level Light TherapyPainPain ManagementProcedural PainAdultAnesthetics, LocalChildHumansPain MeasurementAnesthetics, LocalInjectionsLocal anesthesiaLow-Level Laser TherapyPainPhotobiomodulation

Identifiers

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.