Limits...
Effect of ligation method on maxillary arch force/moment systems for a simulated lingual incisor malalignment.

Seru S, Romanyk DL, Toogood RW, Carey JP, Major PW - Open Biomed Eng J (2014)

Bottom Line: The Orthodontic Simulator (OSIM) was used to quantify the three-dimensional forces and moments applied on the teeth given a lingually displaced incisor.A repeated measures MANOVA was performed to statistically analyze the data.The interaction factor illustrated convincing evidence that there is a difference in maximum force and moment values for all outcome variables between ligation types considering all tooth positions along the arch.

View Article: PubMed Central - PubMed

Affiliation: Lab Coordinator, Orthodontic Biomechanics Laboratory, University of Alberta, Edmonton, AB.

ABSTRACT

Introduction: The objectives of this study were to determine whether there is a difference in the magnitude of forces and moments produced by elastic ligation when compared to passive ligation, and whether these forces and moments propagate differently along the arch for the two ligation types. A lingual incisor malalignment was used in this study.

Methods: The Orthodontic Simulator (OSIM) was used to quantify the three-dimensional forces and moments applied on the teeth given a lingually displaced incisor. A repeated measures MANOVA was performed to statistically analyze the data.

Results: The interaction factor illustrated convincing evidence that there is a difference in maximum force and moment values for all outcome variables between ligation types considering all tooth positions along the arch. The mean differences for FX and FY between ligation types were found to be clinically significant, with values for elastic ligation consistently higher than passive ligation.

Conclusion: It was found that the maximum forces and moments produced by elastic ligation are greater than those produced by passive ligation and that the magnitude of this difference for the mesiodistal and buccolingual forces is clinically relevant. Additionally, it was determined that elastic ligation causes forces and moments to propagate further along the arch than passive ligation for all outcome variables.

No MeSH data available.


Related in: MedlinePlus

Orthodontic Simulator in a neutral arch position.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
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Figure 1: Orthodontic Simulator in a neutral arch position.

Mentions: The Orthodontic Simulator (OSIM) in Fig. (1) is an electromechanical system developed by researchers and clinicians at the University of Alberta to quantify the three-dimensional forces and moments applied on the teeth given specific orthodontic conditions, described in detail by Badawi et al. [8-10].


Effect of ligation method on maxillary arch force/moment systems for a simulated lingual incisor malalignment.

Seru S, Romanyk DL, Toogood RW, Carey JP, Major PW - Open Biomed Eng J (2014)

Orthodontic Simulator in a neutral arch position.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4231375&req=5

Figure 1: Orthodontic Simulator in a neutral arch position.
Mentions: The Orthodontic Simulator (OSIM) in Fig. (1) is an electromechanical system developed by researchers and clinicians at the University of Alberta to quantify the three-dimensional forces and moments applied on the teeth given specific orthodontic conditions, described in detail by Badawi et al. [8-10].

Bottom Line: The Orthodontic Simulator (OSIM) was used to quantify the three-dimensional forces and moments applied on the teeth given a lingually displaced incisor.A repeated measures MANOVA was performed to statistically analyze the data.The interaction factor illustrated convincing evidence that there is a difference in maximum force and moment values for all outcome variables between ligation types considering all tooth positions along the arch.

View Article: PubMed Central - PubMed

Affiliation: Lab Coordinator, Orthodontic Biomechanics Laboratory, University of Alberta, Edmonton, AB.

ABSTRACT

Introduction: The objectives of this study were to determine whether there is a difference in the magnitude of forces and moments produced by elastic ligation when compared to passive ligation, and whether these forces and moments propagate differently along the arch for the two ligation types. A lingual incisor malalignment was used in this study.

Methods: The Orthodontic Simulator (OSIM) was used to quantify the three-dimensional forces and moments applied on the teeth given a lingually displaced incisor. A repeated measures MANOVA was performed to statistically analyze the data.

Results: The interaction factor illustrated convincing evidence that there is a difference in maximum force and moment values for all outcome variables between ligation types considering all tooth positions along the arch. The mean differences for FX and FY between ligation types were found to be clinically significant, with values for elastic ligation consistently higher than passive ligation.

Conclusion: It was found that the maximum forces and moments produced by elastic ligation are greater than those produced by passive ligation and that the magnitude of this difference for the mesiodistal and buccolingual forces is clinically relevant. Additionally, it was determined that elastic ligation causes forces and moments to propagate further along the arch than passive ligation for all outcome variables.

No MeSH data available.


Related in: MedlinePlus