A trial study to acceleration of orthodontic tooth movement by low intensity pulsed ultrasound

• Project/Area Number: 24593100
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Orthodontic/Pediatric dentistry
• Research Institution: Nagasaki University
• Principal Investigator: FUJIMURA Yuji 長崎大学, 医歯薬学総合研究科(歯学系), 助教 (70448504)
• Co-Investigator(Kenkyū-buntansha): YOSHIMATSU Masako 長崎大学, 病院(歯学系), 助教 (20420630) ; HOTOKEZAKA Hitoshi 長崎大学, 医歯薬学総合研究科(歯学系), 准教授 (90199513)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 矯正的歯の移動 / 低出力超音波 / 歯科矯正学

Outline of Final Research Achievements

The purpose of the present study was to evaluate whether the application of low intensity pulsed ultrasound (LIPUS) could accelerate orthodontic tooth movement using mouse research models.
A Ni-Ti closed coil spring was inserted between the upper anterior alveolar bone and the upper left first molar and was fixed. The amount of tooth movement was measured by micro CT on day 12. The amount of tooth movement of LIPUS group tended to be greater than those of control group, however, these two sides were not significantly different statistically.