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Pulp ablation therapy by inductive heating: heat generation characteristics in the pulp cavity
Author(s) -
Wada S,
Tazawa K,
Suzuki N,
Furuta I,
Nagano I
Publication year - 2007
Publication title -
oral diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.953
H-Index - 87
eISSN - 1601-0825
pISSN - 1354-523X
DOI - 10.1111/j.1601-0825.2006.01266.x
Subject(s) - pulp (tooth) , root canal , ablation , pellets , magnetite , materials science , heating system , coronal plane , dentistry , biomedical engineering , composite material , medicine , anatomy , metallurgy , mechanical engineering , engineering
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.