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The effect of mobile phone waves on salivary secretion in dental students of Rafsanjan University of Medical Sciences

2021 · Benefit · Low evidence

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BenefitLow evidencePaper 1302

Students reporting 20–40 or >40 minutes/day of mobile phone calls had higher mean unstimulated and stimulated salivary secretion than students reporting <20 minutes/day (P<0.05). Increased call duration was reported as correlated with increased salivary secre…

Study snapshot

Publicationmanual · 2021
Study typecross_sectional
Reported directionBenefit
Evidence ratingLow

Abstract

The effect of mobile phone waves on salivary secretion in dental students of Rafsanjan University of Medical Sciences N. Kamyab, Z. Mordouei, M. Hosseini, M. Sheikh Fathollahi. The effect of mobile phone waves on salivary secretion in dental students of Rafsanjan University of Medical Sciences. Int J Radiat Res 2021, 19(1): 81-87. Abstract Background: Excessive use of mobile phones is addictive and causes many complications. The severity of these complications depends on the duration of the call and the frequency of using mobile phones. Therefore, this study aimed to determine the effect of mobile phone waves on salivary secretion. Materials and Methods: This descriptive study was conducted on 120 dental students in Rafsanjan, Iran, in 2015. Using the call history of the mobile phones, the number and duration of each person's daily calls were obtained. The spitting method was used to collect unstimulated saliva, and stimulated saliva was collected with the help of natural chewing gums without sugar and additive flavors. After sampling, the falcon tubes containing saliva were centrifuged at 2500 rpm for 10 minutes. Then the saliva volume was read from the tube and recorded. Independent two-sample t test, one-way ANOVA, and multiple linear regression model were used for data analysis. Results: Students who talked for more than 40 minutes or 20-40 minutes a day on their mobile phones had a mean unstimulated salivary secretion of 0.885 and 0.331 ml/min, respectively and mean stimulated salivary secretion of 0.702 and 0.708 ml/min, respectively more than students who talked less than 20 minutes a day on their cell phones (P<0.05). Conclusion: The results showed that increased duration of cell phone calls was associated with increasing the amount of stimulated and unstimulated salivary secretion, which could decrease the risk of developing oral infections and tooth decay. ijrr.com Conclusion The results of the present study indicated that increased duration of cell phone calls was correlated to increasing the amount of salivary secretion. It is suggested future studies be conducted on all age groups and in addition to quantity, the quality of saliva is examined. Measuring the amount of saliva secreted on the dominant side of cell phone use and compare it with the recessive side is also recommended.

Machine Enhanced Logic

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 typecross_sectional
Effect directionbenefit
PopulationDental students, Rafsanjan University of Medical Sciences (Rafsanjan, Iran)
Sample size120
ExposureRF · Daily call duration categories: <20 min/day, 20–40 min/day, >40 min/day (from call history)
Evidence strengthLowConfidence: 74% · Peer reviewed: yes

Main findings

Students reporting 20–40 or >40 minutes/day of mobile phone calls had higher mean unstimulated and stimulated salivary secretion than students reporting <20 minutes/day (P<0.05). Increased call duration was reported as correlated with increased salivary secretion.

Outcomes measured

  • Unstimulated salivary secretion (ml/min)
  • Stimulated salivary secretion (ml/min)

Limitations

  • Descriptive/cross-sectional design (association; causality not established)
  • Exposure based on phone call history (no direct RF exposure measurement such as frequency/SAR)
  • Population limited to dental students at one university and one time period (2015)
View raw extracted JSON
{
  "study_type": "cross_sectional",
  "exposure": {
    "band": "RF",
    "source": "mobile phone",
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": "Daily call duration categories: <20 min/day, 20–40 min/day, >40 min/day (from call history)"
  },
  "population": "Dental students, Rafsanjan University of Medical Sciences (Rafsanjan, Iran)",
  "sample_size": 120,
  "outcomes": [
    "Unstimulated salivary secretion (ml/min)",
    "Stimulated salivary secretion (ml/min)"
  ],
  "main_findings": "Students reporting 20–40 or >40 minutes/day of mobile phone calls had higher mean unstimulated and stimulated salivary secretion than students reporting <20 minutes/day (P<0.05). Increased call duration was reported as correlated with increased salivary secretion.",
  "effect_direction": "benefit",
  "limitations": [
    "Descriptive/cross-sectional design (association; causality not established)",
    "Exposure based on phone call history (no direct RF exposure measurement such as frequency/SAR)",
    "Population limited to dental students at one university and one time period (2015)"
  ],
  "evidence_strength": "low",
  "confidence": 0.74,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "mobile phone",
    "RF exposure",
    "call duration",
    "saliva",
    "salivary secretion",
    "dental students",
    "Iran"
  ],
  "suggested_hubs": []
}
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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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