Kyushu University Academic Staff Educational and Research Activities Database
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Yoshito Yoshimine Last modified date:2019.06.27

Associate Professor / Division of Oral Rehabilitation
Department of Dental Science
Faculty of Dental Science


Undergraduate School


E-Mail
Academic Degree
PhD
Field of Specialization
Endodontology, Operative Dentistry
Research
Research Interests
  • Development of root canal irrigation technique using Er:YAG laser
    keyword : root canal irrigation, Er:YAG laser
    2014.04~2018.03.
  • Establishment of pulpectomy using Er:YAG laser
    keyword : Er:YAG laser, pulpectomy, ablasion
    2011.04~2016.03.
  • Development and clinical application of the intracanal endoscope
    keyword : intracanal endoscope
    2009.05~2016.03.
  • Application of Er:YAG laser to endodontic treatment
    keyword : endodontic treatment, Er:YAG laser
    2006.04~2016.03.
  • Comparison of the shaping effects of Ni-Ti files
    keyword : Ni-Ti file, Shaping ability
    2003.04~2012.03.
  • Biocompatibility of new-type materials in endodontic treatments
    keyword : endodontic treatment, biomaterial, biocompatibility
    2000.04~2012.03.
Academic Activities
Papers
1. Yoshimine Y, Ono M, Akamine A , In vitro comparison of the biocompatibility of mineral trioxide aggregate, 4META/MMA-TBB resin, and intermediate restorative material as root-end-filling materials, Journal of Endodontics, 33(9): 1066-9, 2007.09.
Presentations
1. Tomato Kihara, Himeka Matsumoto, Yoshito Yoshimine, Evaluation of cleaning efficacy of laser-activated irrigation in a simulated accessory canal
, 第15回国際レーザー歯学会, 2016.07, Purpose: Laser-activated irrigation (LAI) using an Er:YAG laser (Erwin AdvErl: Morita, Japan) is an irrigant agitation method. However, the ability of LAI to efficiently clean accessory canals remains unclear. This study aimed to investigate the influence of pulse energy on the cleaning efficacy of LAI in the accessory canal.
Materials and Methods:
Transparent root canal models with an accessory canal were made from acrylic resin. A 0.2-mm diameter accessory canal was made horizontally in the apical area. Accessory canals were then filled with stained biofilm-mimicking gelatin gel. A solution of 5% NaOCl was used as an irrigant. We used an Er:YAG laser, irradiated at pulse energies of 30 mJ at 20 pps, in combination with a 200um diameter cone-shaped tip, placed 10 mm from the apex, for 20 s and 40 s, respectively. Conventional syringe irrigation with a flat-end needle was used as a control.
Digital photographs were taken and subsequently analyzed to determine the distance from the accessory canal entrance to the closest gelatin-irrigant interface. Differences within each irrigation group were quantified using a Tukey-Kramer test, with p values of <0.05 considered significant.
Results:
LAI resulted in a greater depth of hydrogel removal from the artificially created accessory canal than syringe irrigation. Laser irradiation at 30 mJ for 40 s, eliminated a significant amount of hydrogel compared to that achieved at 30 mJ for 20 s (P<0.05).
Conclusions: LAI enhanced the cleaning effect of NaOCl in the accessory canal in comparison to the effect achieved with syringe irrigation.
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2. Root canal irrigation using Er:YAG laser.
3. Cavitation effects of the pulsed laser in root canal models.
Membership in Academic Society
  • International Association of Dental Research