Application of capacitively coupled electric field enhances periimplant osteogenesis in the dog mandible.

The International journal of prosthodontics · 2000 · Benefit · Low evidence

← Research stream

BenefitLow evidencePaper 3979

Daily application of capacitively coupled electric field (10-Vp-p, 60-kHz sine wave; 8 h/day) significantly increased the bone-contact ratio at 14, 21, and 30 days after implant placement compared with controls. Bone-area ratios at 14 and 21 days were signifi…

Study snapshot

PublicationThe International journal of prosthodontics · 2000

Study typeanimal

Reported directionBenefit

Evidence ratingLow

Abstract

PURPOSE: Expeditious postoperative ingrowth of bone into dental implants is desired for clinically successful fixation of oral implants. The present study was performed to evaluate the effect of applying a capacitively coupled electric field (CCEF) on periimplant osteogenesis in the dog mandible. MATERIALS AND METHODS: Twelve adult male beagles were used in this study. All of the premolars on both sides of the mandible were removed from each dog. A POI (Ti-6Al-4V) 3-piece implant (3.7 mm in diameter and 8.0 mm in length) whose surface had been treated with anodic oxidation was placed into each test site by self-tapping. Daily application of CCEF (8 h/day) was initiated on the day following the surgery and was continued through the day of sacrifice. A CCEF was induced by an external source delivering 10-Vp-p, 60-kHz sine-wave signals through an oral electrode plate. One side of the mandible of each dog was treated with CCEF, while the other side was not. On the control side, an oral electrode plate was attached for 8 hours per day, but CCEF was not applied. The effect of daily application of CCEF on the ingrowth of bone into the implant was examined at 14, 21, or 30 days after implant placement. A fourth control group was not treated with CCEF and was maintained for 90 days to confirm that CCEF treatment enhances bone ingrowth in dental implants. RESULTS: Daily application of CCEF significantly increased the bone-contact ratio at days 14, 21, and 30 after implant placement in comparison with the respective controls. The bone-area ratios of the 14- and 21-day CCEF-treated groups were significantly larger than those of the respective controls and were similar to those of the 90-day control group. CONCLUSION: CCEF treatment increases periimplant osteogenesis in the dog mandible, confirming its usefulness in oral implantology.

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 typeanimal

Effect directionbenefit

PopulationTwelve adult male beagles (dog mandible implant model)

Sample size12

Exposure0.06 MHz · 8 h/day (daily), from day after surgery through sacrifice (14, 21, or 30 days); additional 90-day control group without CCEF

Evidence strengthLowConfidence: 78% · Peer reviewed: yes

Main findings

Outcomes measured

periimplant osteogenesis
bone-contact ratio
bone-area ratio
bone ingrowth into implant

Limitations

Animal study (dog mandible), not human clinical outcomes
Specific implant type and surface treatment (anodic oxidation) may limit generalizability
Exposure metrics beyond voltage and frequency (e.g., field strength at tissue, dosimetry/SAR) not reported in abstract
Blinding/randomization not described in abstract

View raw extracted JSON

{
  "study_type": "animal",
  "exposure": {
    "band": null,
    "source": "capacitively coupled electric field (external source via oral electrode plate)",
    "frequency_mhz": 0.06,
    "sar_wkg": null,
    "duration": "8 h/day (daily), from day after surgery through sacrifice (14, 21, or 30 days); additional 90-day control group without CCEF"
  },
  "population": "Twelve adult male beagles (dog mandible implant model)",
  "sample_size": 12,
  "outcomes": [
    "periimplant osteogenesis",
    "bone-contact ratio",
    "bone-area ratio",
    "bone ingrowth into implant"
  ],
  "main_findings": "Daily application of capacitively coupled electric field (10-Vp-p, 60-kHz sine wave; 8 h/day) significantly increased the bone-contact ratio at 14, 21, and 30 days after implant placement compared with controls. Bone-area ratios at 14 and 21 days were significantly larger than controls and were similar to those of a 90-day control group.",
  "effect_direction": "benefit",
  "limitations": [
    "Animal study (dog mandible), not human clinical outcomes",
    "Specific implant type and surface treatment (anodic oxidation) may limit generalizability",
    "Exposure metrics beyond voltage and frequency (e.g., field strength at tissue, dosimetry/SAR) not reported in abstract",
    "Blinding/randomization not described in abstract"
  ],
  "evidence_strength": "low",
  "confidence": 0.78,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "capacitively coupled electric field",
    "CCEF",
    "60 kHz",
    "electric field stimulation",
    "dental implants",
    "periimplant osteogenesis",
    "bone-contact ratio",
    "bone-area ratio",
    "dog mandible",
    "beagle"
  ],
  "suggested_hubs": [
    {
      "slug": "animal-studies",
      "weight": 0.7,
      "reason": "In vivo dog model assessing biological effects of applied electric fields on bone/implant integration."
    }
  ]
}

AI can be wrong. Always verify against the paper.

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: 11203655

Read the original paper →

Related papers

← Back to the Research Library