Journal List > Korean J Orthod > v.38(5) > 1043563

Kim, Park, and Kang: The effects of electrical current from a micro-electrical device on tooth movement

Abstract

Objective

The purpose of this study was to determine whether an exogenous electric current to the alveolar bone surrounding a tooth being orthodontically treated can enhance tooth movement in human and to verify the effect of electric currents on tooth movement in a clinical aspect.

Methods

This study was performed on 7 female orthodontic patients. The electric appliance was set in the maxilla to provide a direct electric current of 20 µA. The maxillary canine on one side was assigned as the experimental side, and the other as control. The experimental canine was provided with orthodontic force and electric current. The control side was given orthodontic force only. Electrical current was applied to experimental canines for 5 hours a day. The amount of canine movement was measured with an electronic caliper every week.

Results

The amount of orthodontic tooth movement in the experimental side during 4 weeks was greater by 30% compared to that of the control side. The amount of increase in tooth movement in the experimental side was statistically significant. The amount of tooth movement in the experimental side during the first two weeks was greater than that in the following two weeks. The amount of weekly tooth movement in the control side was decreased gradually.

Conclusions

These results suggested that the exogenous electric current from the miniature electric device might accelerate orthodontic tooth movement by one third and have the potential to reduce orthodontic treatment duration.

Figures and Tables

Fig. 1
Schematic diagram of the electric circuit. S1, switch; Q1, Q2, transistor; R1, R2, resistor.
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Fig. 2
Fixed type electric appliance was set up on the upper left canine.
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Fig. 3
Assemblies, customized bracket and electric elements used in fixed electric devices.
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Fig. 4
Check the application of the fixed type electric appliance to the study model.
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Fig. 5
Weekly tooth movement.
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Fig. 6
Frontal and buccal view. A, Experimental side; B, frontal view; C, control side.
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Fig. 7
Occlusal view. A, Beginning stage at start of experiment; B, after 4 weeks.
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Table 1
The mean value and statistical significance of tooth movement measured on a weekly basis (mm)
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References

1. Baumrind S. A reconsideration of the propriety of the "pressure-tension" hypothesis. Am J Orthod. 1969. 55:12–22.
crossref
2. Mostafa YA, Weaks-Dybvig M, Osdoby P. Orchestration of tooth movement. Am J Orthod. 1983. 83:245–250.
crossref
3. Fukada E, Yasuda I. On the piezoelectricity effect of bone. J Physiol Soc Japan. 1957. 12:1158–1162.
4. Bassett CA, Becker RO. Generation of electrical potentials by bone in response to mechanical stress. Science. 1962. 137:1063–1064.
crossref
5. Bassett CA. Electrical effects in bone. Sci Am. 1965. 213:18–25.
crossref
6. Brighton CT, Friedenberg ZB. Electrical stimulation and oxygen tension. Ann N Y Acad Sci. 1974. 238:314–320.
crossref
7. Lavine LS, Shamos MH, Moss ML. The influence of electric current on bone regeneration in vivo. Acta Orthop Scand. 1971. 42:305–314.
crossref
8. Jorgensen TE. The effect of electric current on the healing time of crural fractures. Acta Orthop Scand. 1972. 43:421–437.
crossref
9. Masureik C, Ericksson C. Preliminary clinical evaluation of the effect of small electrical currents on the healing of jaw fractures. Clin Orthop Relat Res. 1977. 124:84–91.
crossref
10. Brighton CT, Friedenberg ZB, Mitchell EI, Booth RE. Treatment of nonunion with constant direct current. Clin Orthop Relat Res. 1977. 124:106–123.
crossref
11. Cochran GV, Pawluk RJ, Bassett CA. Stress generated electric potentials in the mandible and teeth. Arch Oral Biol. 1967. 12:917–920.
crossref
12. Zengo AN, Pawluk RJ, Bassett CA. Stress-induced bioelectric potentials in the dentoalveolar complex. Am J Orthod. 1973. 64:17–27.
crossref
13. Zengo AN, Bassett CA, Pawluk RJ, Prountzos G. In vivo bioelectric potentials in the dentoalveolar complex. Am J Orthod. 1974. 66:130–139.
crossref
14. Kubota K, Yoshimura N, Yokota M, Fitzsimmons RJ, Wikesjö ME. Overview of effects of electrical stimulation on osteogenesis and alveolar bone. J Periodontol. 1995. 66:2–6.
crossref
15. Jacobs JD, Norton LA. Electrical stimulation of osteogenesis in pathological osseous defects. J Periodontol. 1976. 47:311–319.
crossref
16. Gerling JA, Sinclair PM, Roa RL. The effect of pulsating electromagnetic fields on condylar growth in guinea pigs. Am J Orthod. 1985. 87:211–223.
crossref
17. Narkhede PR. A histologic evaluation of the effect of electrical stimulation on osteogenic changes following placement of blade-vent implants in the mandible of rabbits. J Oral Implantol. 1998. 24:185–195.
crossref
18. Davidovitch Z, Finkelson MD, Steigman S, Shanfeld JL, Montgomery PC, Korostoff E. Electric currents, bone remodeling, and orthodontic tooth movement: I. The effect of electric currents on periodontal cyclic nucleotides. Am J Orthod. 1980. 77:14–32.
19. Davidovitch Z, Finkelson MD, Steigman S, Shanfeld JL, Montgomery PC, Korostoff E. Electric currents, bone remodeling, and orthodontic tooth movement: II. Increase in rate of tooth movement and periodontal cyclic nucleotide levels by combined force and electric current. Am J Orthod. 1980. 77:33–47.
20. Davidovitch Z, Steigman S, Finkelson MD, Yost RW, Montgomery PC, Shanfeld JL, et al. Immunohistochemical evidence that electric currents increase periosteal cell cyclic nucleotide levels in feline alveolar bone in vivo. Arch Oral Biol. 1980. 25:321–327.
crossref
21. Davidovitch Z, Korostoff E, Finkelson MD, Yost RW, Montgomery PC, Steigman S, et al. Effect of electric currents on gingival cyclic nucleotides in vivo. J Periodontal Res. 1980. 15:353–362.
crossref
22. Hashimoto H. Effect of micro-pulsed electricity on experimental tooth movement. Nippon Kyosei Shika Gakkai Zasshi. 1990. 49:352–361.
23. Park SJ, Lee YJ, Park YG. A study on the efects of electrical stimulation by the miniature electric device on the tooth movement and tissue remodeling. Korea J Orthod. 2003. 33:279–291.
24. Shamos MH, Lavine LS. Piezoelectricity as a fundamental property of biological tissues. Nature. 1967. 213:267–269.
crossref
25. Braden M, Bairstow AG, Beider I, Ritter BG. Electrical and piezoelectrical properties of dental hard tissues. Nature. 1966. 212:1565–1566.
crossref
26. Marino A, Gross BD. Piezoelectricity in cementum, dentin and bone. Archs Oral Biol. 1989. 34:507–509.
27. Davidovitch Z, Shanfield JL. Cyclic AMP levels in alveolar bone of orthodontically-treated cats. Archs Oral Biol. 1975. 20:567–574.
crossref
28. Norton LA, Rodan GA, Bourret LA. Epiphyseal cartilage cAMP changes produced by electrical and mechanical pertubations. Clin Orthop Relat Res. 1977. 124:59–68.
29. Spadaro JA. Electrically stimulated bone growth in animals and man. Review of the literature. Clin Orthop Relat Res. 1977. 122:325–332.
30. Beeson DC, Johnston LE, Wisotzky J. Effect of constant currents on orthodontic tooth movement in the cat. J Dent Res. 1975. 54:251–254.
31. Stark TM, Sinclair PM. Effect of pulsed electromagnetic fields on orthodontic tooth movement. Am J Orthod Dentofacial Orthop. 1987. 91:91–104.
crossref
32. Bassett CA, Pawluk RJ, Pilla AA. Acceleration of fracture repair by electromagnetic fields. A surgically noninvasive method. Ann N Y Acad Sci. 1974. 238:242–262.
crossref
33. Friedenberg ZB, Roberts PG Jr, Didizian NH, Brighton CT. Stimulation of fracture healing by direct current in the rabbit fibula. J Bone Joint Surg Am. 1971. 53:1400–1408.
crossref
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