Effect of low frequency electromagnetic radiation on the morphology of dental and periodontal tissues

2019 · Harm · Low evidence

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HarmLow evidencePaper 1800

In rats exposed for 30 days to a 70 kHz low-frequency alternating electric field, a complex morphological assessment of upper jaw tissue identified damaging effects on structural components of tooth and periodontal tissues compared with controls.

Study snapshot

Publicationmanual · 2019

Study typeanimal

Reported directionHarm

Evidence ratingLow

Abstract

Effect of low frequency electromagnetic radiation on the morphology of dental and periodontal tissues Markovskaya IV. The effect of low frequency electromagnetic radiation on the morphology of dental and periodontal tissues (experimental investigation). Wiad Lek. 2019;72(5 cz 1):773-778. Abstract OBJECTIVE: Low intensity electromagnetic effects possess a high biological activity, reduce the adaptive reserves of the body, impair immunity, adversely affect the functional state of the organs and body systems. The aim of the study was to identify in the experiment the effect of low-frequency electromagnetic radiation on the morphological state of the dental and periodontal tissue. PATIENTS AND METHODS: The experiment was conducted on WAG rats weighing 180-200 g, during which two groups were formed: group 1 (control group) included 12 WAG rats, which were not performed any manipulations; the rats of group 2 (investigation group) (n=12) for 30 days were exposed to a 70 kHz low- frequency alternating electric field (5th frequency range) daily from 9.00 to 12.00. To simulate a low-frequency 70 kHz alternating electric field, certified experimental equipment was used. The study material was the upper jaw tissue. Histological and histochemical staining methods were used. Morphometric study was conducted. RESULTS: Complex morphological study on the experimental material allowed identifying the damaging effect of low-frequency electromagnetic radiation on the structural components of tooth and periodontal tissues. CONCLUSION: Our findings suggest that the workers who are exposed to occupational low-frequency electromagnetic radiation should be included in the risk group for developing diseases of the dentomandibular system in order to carry out timely therapeutic and preventive measures. ncbi.nlm.nih.gov

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AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeanimal

Effect directionharm

PopulationWAG rats (180–200 g)

Sample size24

Exposureunknown · 0.07 MHz · 30 days; daily 9:00–12:00

Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Outcomes measured

Morphology/structural changes in dental tissues
Morphology/structural changes in periodontal tissues
Histological/histochemical findings of upper jaw tissue
Morphometric measures of tooth and periodontal tissues

Limitations

No quantitative exposure intensity reported (e.g., field strength)
No SAR or dosimetry details provided
Animal model; human relevance inferred but not directly tested
Abstract does not report specific morphometric results or effect sizes

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": "unknown",
    "source": "other",
    "frequency_mhz": 0.07,
    "sar_wkg": null,
    "duration": "30 days; daily 9:00–12:00"
  },
  "population": "WAG rats (180–200 g)",
  "sample_size": 24,
  "outcomes": [
    "Morphology/structural changes in dental tissues",
    "Morphology/structural changes in periodontal tissues",
    "Histological/histochemical findings of upper jaw tissue",
    "Morphometric measures of tooth and periodontal tissues"
  ],
  "main_findings": "In rats exposed for 30 days to a 70 kHz low-frequency alternating electric field, a complex morphological assessment of upper jaw tissue identified damaging effects on structural components of tooth and periodontal tissues compared with controls.",
  "effect_direction": "harm",
  "limitations": [
    "No quantitative exposure intensity reported (e.g., field strength)",
    "No SAR or dosimetry details provided",
    "Animal model; human relevance inferred but not directly tested",
    "Abstract does not report specific morphometric results or effect sizes"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "low-frequency electromagnetic radiation",
    "alternating electric field",
    "70 kHz",
    "WAG rats",
    "dental tissue",
    "periodontal tissue",
    "morphology",
    "histology",
    "histochemistry",
    "morphometry",
    "occupational exposure"
  ],
  "suggested_hubs": [
    {
      "slug": "occupational-exposure",
      "weight": 0.62,
      "reason": "Conclusion discusses workers exposed to occupational low-frequency electromagnetic radiation as a risk group."
    }
  ]
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: Not supplied
PubMed: Not supplied

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