IngentaConnect Pulp ablation therapy by inductive heating: heat generation chara...

Authors: Wada, S¹; Tazawa, K²; Suzuki, N³; Furuta, I¹; Nagano, I⁴

Source: Oral Diseases, Volume 13, Number 2, March 2007 , pp. 193-197(5)

Abstract:

Objective and methods:

This study was performed to clarify the usefulness of inductive heating system for the new endodontic therapy. Dextran magnetite complex (DM) suspensions were injected into the root canal of a permanent tooth, and the tooth was heated up to about 55.0°C by alternating-current magnetic field. Results and conclusion:

The time until the temperature in the pulp cavity reached 55.0°C was 328 ± 26 s (mean ± s.d., n = 8) in the 56 mg as Fe ml⁻¹ of DM concentration. The temperature in the pulp cavity could be maintained at 53.5-59.0°C for 1200 s by changing the magnetic field intensity safely, while temperature elevations of the dental surface on the coronal and apical sides were 4.9° and 3.7°C, respectively. Thus, this inductive heating system, which has the possibility of selective heating, might be useful for eliminating residues of pulp as a new ablation therapy. Oral Diseases (2007) 13, 193-197

Keywords: inductive heating; endodontic therapy; pulp cavity; dextran/magnetite; magnetic fluid

Document Type: Research article

DOI: 10.1111/j.1601-0825.2006.01266.x

Affiliations: 1: Department of Dentistry and Oral Surgery, Faculty of Medicine, University of Toyama, Toyama, Japan 2: School of Nursing, Faculty of Medicine, University of Toyama, Toyama, Japan 3: Noto Marine Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Noto-cho, Ishikawa, Japan 4: Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, Ishikawa, Japan

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Pulp ablation therapy by inductive heating: heat generation characteristics in the pulp cavity