利用共振頻率初始值預測牙科植體之癒合時間及可能穩定值：以動物實驗及離體實驗

陳璟鋒

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Health & Medical Care > Dentistry & Stomatology
College of Oral Medicine > Master and Ph.D. program, School of Dentistry

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利用共振頻率初始值預測牙科植體之癒合時間及可能穩定值：以動物實驗及離體實驗

Predictions of Healing Period & Possible Final RF Values Using Initial RF Values：in Vivo & in Vitro

陳璟鋒 , Masters　　Advisor：李勝揚;黃豪銘　　

繁體中文

牙科植體；共振頻率；骨整合；穩固度；檢測系統； dental implant ； resonance frequency ； osseointegration ； stability ； stability-detecting system

Abstract │ Reference (112) │ Times Cited (3) │ Altmetrics

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In the past thirty years, there were numerous studies published on the stability of dental implant during osseointegration, but there have been still no valid and effective devices yet for dentists to determine the appropriate timing for prosthodontic loading of implants. Recently, implant stability assessment with resonance frequency (RF) has been discussed by numerous studies. However, due to the limit space of oral cavity, the traditional harmonic response method is not suitable for intra-oral practice. Therefore, in the present study, a novel device based on vibration theory developed by our lab was tested for clinical use in vivo and in vitro. The results of RF values show that there are nearly linear relationships between both the initial RF values (IRF) and the healing time and the increasing ratio of RF values (IRRF) at plateau (y = -1583.9x + 12260, R2 = 0.6587 and y = -25.949x + 4852.9, R2 = 0.812). These data demonstrate that the implants with IRF values located at 1000~2000 Hz, 2000~3000 Hz and more than 3000 Hz are stable when their IRRF values reach 90~130 %, 90 % and 50 %, respectively. Therefore, in the clinical practice, we may estimate the healing time of implant by the detected IRF values, and then, make the second detection at the estimated time to judge whether the implant heals from its IRRF value. Furthermore, the RF values might decrease when the osseointegration failed. That is, RF value of implant may help not only to monitor the process of osseointegration of implants, and make the early diagnosis of implant failure, but also estimate the timing of prosthodontic loading. With the optimal modification in the future, it will offer the dentist a useful tool for diagnosis of the dental implant surgery.

Reference ( 112 ) 〈TOP〉

1. Wong FY, Pal S, Saha S. The assessment of in vivo bone condition in humans by impact response measurement. J Biomech, 16(10): 849-856, 1983.
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2. Oka H, Yamamoto T, Saratani K, Kawazoe T. Application of mechanical mobility of periodontal tissues to tooth mobility examination. Med & Biol Eng & Comput, 27: 75-81, 1989.
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5. Noyes DH, Solt CW. Measurement of mechanical mobility of human incisors with sinusoidal forces. J Biomech, 6: 439-442, 1973.
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6. Oka H, Yamamoto T, Saratani K, Kawazoe T. Application of mechanical mobility of periodontal tissues to tooth mobility examination. Med & Biol Eng & Comput, 27: 75-78, 1989.
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7. Oka H, Yamamoto T, Saratani K. Automatic diagnosis of tooth mobility for clinical use. Med Prog Through Technol, 16(3): 117-24, 1990.
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