Abstract
Introduction: It is unknown whether or not intraoral vibrations affect stick-slip behavior at orthodontic bracket-archwire interfaces. In this study, we evaluated bracket-archwire stick-slip behavior as a function of ligation method and archwire vibration. Methods: In-vivo archwire vibrations were measured to obtain frequencies and amplitudes for ex-vivo testing. A piezoresistive accelerometer ligated to the maxillary right canines of 6 subjects transduced the intraoral vibrations. All subjects gave informed consent to participate. Amplitude and frequency of the vibrations were quantified and used in a bench-top friction testing apparatus. Active and passive ligation methods were compared for 9 vibration scenarios. The amount of time to move the bracket along a stainless steel wire was recorded in 90 trials. Analysis of variance and post-hoc tests were used for statistical analyses of the data. Results: During carrot biting, orthodontic wire vibrations had a mean frequency of 98 Hz and a peak-to-peak mean amplitude of 151 mV. The bench-top stick-slip measurement trials containing medium (150 mV) and high (190 mV) amplitude vibrations had significantly less friction (ln, s), 4.81 ± 2.08 and 4.67 ± 2.00, respectively, than those subjected to low (110 mV) amplitudes, 5.80 ± 1.39 (P = 0.04). There were no significant differences between passive and active ligation methods. Conclusions: Amplitudes of archwire vibrations affect stick-slip behavior at the bracket-archwire interfaces.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 314-322 |
| Number of pages | 9 |
| Journal | American Journal of Orthodontics and Dentofacial Orthopedics |
| Volume | 142 |
| Issue number | 3 |
| DOIs | |
| State | Published - Sep 1 2012 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Orthodontics
Cite this
Archwire vibration and stick-slip behavior at the bracket-archwire interface. / Olson, Julie E.; Liu, Ying; Nickel, Jeffrey; Walker, Mary P.; Iwasaki, Laura.
In: American Journal of Orthodontics and Dentofacial Orthopedics, Vol. 142, No. 3, 01.09.2012, p. 314-322.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Archwire vibration and stick-slip behavior at the bracket-archwire interface
AU - Olson, Julie E.
AU - Liu, Ying
AU - Nickel, Jeffrey
AU - Walker, Mary P.
AU - Iwasaki, Laura
PY - 2012/9/1
Y1 - 2012/9/1
N2 - Introduction: It is unknown whether or not intraoral vibrations affect stick-slip behavior at orthodontic bracket-archwire interfaces. In this study, we evaluated bracket-archwire stick-slip behavior as a function of ligation method and archwire vibration. Methods: In-vivo archwire vibrations were measured to obtain frequencies and amplitudes for ex-vivo testing. A piezoresistive accelerometer ligated to the maxillary right canines of 6 subjects transduced the intraoral vibrations. All subjects gave informed consent to participate. Amplitude and frequency of the vibrations were quantified and used in a bench-top friction testing apparatus. Active and passive ligation methods were compared for 9 vibration scenarios. The amount of time to move the bracket along a stainless steel wire was recorded in 90 trials. Analysis of variance and post-hoc tests were used for statistical analyses of the data. Results: During carrot biting, orthodontic wire vibrations had a mean frequency of 98 Hz and a peak-to-peak mean amplitude of 151 mV. The bench-top stick-slip measurement trials containing medium (150 mV) and high (190 mV) amplitude vibrations had significantly less friction (ln, s), 4.81 ± 2.08 and 4.67 ± 2.00, respectively, than those subjected to low (110 mV) amplitudes, 5.80 ± 1.39 (P = 0.04). There were no significant differences between passive and active ligation methods. Conclusions: Amplitudes of archwire vibrations affect stick-slip behavior at the bracket-archwire interfaces.
AB - Introduction: It is unknown whether or not intraoral vibrations affect stick-slip behavior at orthodontic bracket-archwire interfaces. In this study, we evaluated bracket-archwire stick-slip behavior as a function of ligation method and archwire vibration. Methods: In-vivo archwire vibrations were measured to obtain frequencies and amplitudes for ex-vivo testing. A piezoresistive accelerometer ligated to the maxillary right canines of 6 subjects transduced the intraoral vibrations. All subjects gave informed consent to participate. Amplitude and frequency of the vibrations were quantified and used in a bench-top friction testing apparatus. Active and passive ligation methods were compared for 9 vibration scenarios. The amount of time to move the bracket along a stainless steel wire was recorded in 90 trials. Analysis of variance and post-hoc tests were used for statistical analyses of the data. Results: During carrot biting, orthodontic wire vibrations had a mean frequency of 98 Hz and a peak-to-peak mean amplitude of 151 mV. The bench-top stick-slip measurement trials containing medium (150 mV) and high (190 mV) amplitude vibrations had significantly less friction (ln, s), 4.81 ± 2.08 and 4.67 ± 2.00, respectively, than those subjected to low (110 mV) amplitudes, 5.80 ± 1.39 (P = 0.04). There were no significant differences between passive and active ligation methods. Conclusions: Amplitudes of archwire vibrations affect stick-slip behavior at the bracket-archwire interfaces.
UR - http://www.scopus.com/inward/record.url?scp=84865502845&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84865502845&partnerID=8YFLogxK
U2 - 10.1016/j.ajodo.2012.03.032
DO - 10.1016/j.ajodo.2012.03.032
M3 - Article
C2 - 22920697
AN - SCOPUS:84865502845
VL - 142
SP - 314
EP - 322
JO - American Journal of Orthodontics and Dentofacial Orthopedics
JF - American Journal of Orthodontics and Dentofacial Orthopedics
SN - 0889-5406
IS - 3
ER -