Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM Study
Introduction: Evaluations on retraction loop designs have been limited to describe the force systems applied to the buccal surfaces of the tooth that can be in different planes resulting undesirable effects, needing corrective action in future. By initially understanding these effects, modificat...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
JCDR Research and Publications Private Limited
2014-07-01
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| Series: | Journal of Clinical and Diagnostic Research |
| Subjects: | |
| Online Access: | https://jcdr.net/articles/PDF/4576/8941_CE[Ra1]_F(DK)_PF1(PAK)_PFA(AK)_PF2(AGAK).pdf |
| _version_ | 1818690485994127360 |
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| author | Supradeep Kumar Kamisetty Raghuveer N Rajavikram N Chakrapani N Dwaragesh Praven |
| author_facet | Supradeep Kumar Kamisetty Raghuveer N Rajavikram N Chakrapani N Dwaragesh Praven |
| author_sort | Supradeep Kumar Kamisetty |
| collection | DOAJ |
| description | Introduction: Evaluations on retraction loop designs have been
limited to describe the force systems applied to the buccal
surfaces of the tooth that can be in different planes resulting
undesirable effects, needing corrective action in future. By initially
understanding these effects, modifications to the loop design
can essentially counteract the undesired affects.
Aim: To deter-mine Moments & M/F ratios produced by different
gabling in the three retraction loops (Tear drop loop, T-loop, Open
vertical loop) and movement of the anterior teeth and posterior
teeth) of the maxillary arch in an extraction model, on activation
of three retraction loops by1 mm.
Materials and Methods: A PC with Quad core processor, 8GB
RAM, 1TB storage space and Graphic Accelerator was used.
Computer Software: ANSYS Version11, PRO/ENGINEER was
used in the study. The first step is modeling, done by using Pro/
Engineer software and for creating a model the CT scan data is
required. The maxilla with teeth of a patient is scanned at various
sections at regular intervals of 0.5 mm. These scanned images
are then imported into Pro/E software to various offset planes.
Once imported, the software can do an automatic meshing and
establishes contact automatically.
Results: When angulations increases intrusive or extrusive
movements and movements in horizontal direction of crown tip
and root tip increases. All values of T-loop are more than Teardrop
loop and less than Open vertical loop.
Conclusion: FEM study concludes that Teardrop loop with 10-
20(α-β) combination is preferred for Group A anchorage. |
| first_indexed | 2024-12-17T12:26:45Z |
| format | Article |
| id | doaj.art-b8a9f9bdb1bb4e139b9cb581135e6835 |
| institution | Directory Open Access Journal |
| issn | 2249-782X 0973-709X |
| language | English |
| last_indexed | 2024-12-17T12:26:45Z |
| publishDate | 2014-07-01 |
| publisher | JCDR Research and Publications Private Limited |
| record_format | Article |
| series | Journal of Clinical and Diagnostic Research |
| spelling | doaj.art-b8a9f9bdb1bb4e139b9cb581135e68352022-12-21T21:48:45ZengJCDR Research and Publications Private LimitedJournal of Clinical and Diagnostic Research2249-782X0973-709X2014-07-0187ZC33ZC3710.7860/JCDR/2014/8941.4576Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM StudySupradeep Kumar Kamisetty0Raghuveer N1Rajavikram N2Chakrapani N3Dwaragesh4Praven5Reader, Department of Orthodontics and Dentofacial Orthopaedics, St. Joseph Dental College, Duggirala, Eluru, Andhra Pradesh, India.Assistant Professor, Department of Orthodontics and Dentofacial Orthopaedics, St. Joseph Dental College, Duggirala, Eluru, Andhra Pradesh, India.Reader, Department of Orthodontics and Dentofacial Orthopaedics, Thai Moogambigai Dental College, Chennai, India.Professor, Department of Orthodontics and Dentofacial Orthopaedics, St. Joseph Dental College, Duggirala, Eluru, Andhra Pradesh, India.Consultant Orthodontist,Chennai, India.Consultant Orthodontist,Chennai, India.Introduction: Evaluations on retraction loop designs have been limited to describe the force systems applied to the buccal surfaces of the tooth that can be in different planes resulting undesirable effects, needing corrective action in future. By initially understanding these effects, modifications to the loop design can essentially counteract the undesired affects. Aim: To deter-mine Moments & M/F ratios produced by different gabling in the three retraction loops (Tear drop loop, T-loop, Open vertical loop) and movement of the anterior teeth and posterior teeth) of the maxillary arch in an extraction model, on activation of three retraction loops by1 mm. Materials and Methods: A PC with Quad core processor, 8GB RAM, 1TB storage space and Graphic Accelerator was used. Computer Software: ANSYS Version11, PRO/ENGINEER was used in the study. The first step is modeling, done by using Pro/ Engineer software and for creating a model the CT scan data is required. The maxilla with teeth of a patient is scanned at various sections at regular intervals of 0.5 mm. These scanned images are then imported into Pro/E software to various offset planes. Once imported, the software can do an automatic meshing and establishes contact automatically. Results: When angulations increases intrusive or extrusive movements and movements in horizontal direction of crown tip and root tip increases. All values of T-loop are more than Teardrop loop and less than Open vertical loop. Conclusion: FEM study concludes that Teardrop loop with 10- 20(α-β) combination is preferred for Group A anchorage.https://jcdr.net/articles/PDF/4576/8941_CE[Ra1]_F(DK)_PF1(PAK)_PFA(AK)_PF2(AGAK).pdfα-β angulationsfrictionless mechanicsfemm/f ratioopen vertical looptear drop loopt-loop |
| spellingShingle | Supradeep Kumar Kamisetty Raghuveer N Rajavikram N Chakrapani N Dwaragesh Praven Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM Study Journal of Clinical and Diagnostic Research α-β angulations frictionless mechanics fem m/f ratio open vertical loop tear drop loop t-loop |
| title | Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM Study |
| title_full | Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM Study |
| title_fullStr | Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM Study |
| title_full_unstemmed | Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM Study |
| title_short | Evaluation of Effects and Effectiveness of Various α and β Angulations for Three Different Loop Made of Stainless Steel Arch Wires – A FEM Study |
| title_sort | evaluation of effects and effectiveness of various α and β angulations for three different loop made of stainless steel arch wires a fem study |
| topic | α-β angulations frictionless mechanics fem m/f ratio open vertical loop tear drop loop t-loop |
| url | https://jcdr.net/articles/PDF/4576/8941_CE[Ra1]_F(DK)_PF1(PAK)_PFA(AK)_PF2(AGAK).pdf |
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