Selection of optimal length and diameter of mini implant in two different forces: a three-dimensional finite element analysis / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 85-90, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-315868
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of different length and diameters on the stability of mini implant and to select optimal length and diameter using continuous variation of parameters.</p><p><b>METHODS</b>To perform 3-dimensional finite element analysis, finite element models of a maxilla, and mini implants with length of 6-12 mm and diameters of 1.2-2.0 mm were generated. Load of two different forces were applied to the head of mini implant. One type was horizontal force (HF), the other was composite force (CF). The maximum equivalent stress (Max EQV) in maxilla and the maximum displacement (Max DM) of mini implant were evaluated.</p><p><b>RESULTS</b>The Max EQV in maxilla and Max DM of mini implant decreased as length and diameter increased. When length was more than 9 mm, the evaluation indexes were small and had a less change. Datas indicated that diameter played a more important role in reducing target, and was a more effective parameter in reducing Max EQV when CF was loaded.</p><p><b>CONCLUSION</b>From biomechanical point of view, the choice of the length should not be more than 9 mm. When CF is loaded using the mini implant, diameter exceeding 1.2 mm are optimal design for mini implant.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Stress, Mechanical
/
Dental Implants
/
Finite Element Analysis
/
Dental Stress Analysis
/
Maxilla
Limits:
Humans
Language:
Chinese
Journal:
West China Journal of Stomatology
Year:
2014
Type:
Article
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