Ramos LFK, Evaristo-Chiyong T

Language: Spanish
References: 33
Page: 125-132
PDF size: 182.65 Kb.

ABSTRACT

The present study analyzed the utilitary arch of Ricketts made with TMA and Elgiloy alloys, evaluating the forces that each one presented at different activation lengths. Methods: A total of 30 arches (15 per alloy) 17x25 caliber were assessed. An acrylic model that simulated the jaw was used with tubes welded to the bands located on the first molars where the arches were attached and brackets were bonded to the lower incisors. The Ricketts arches had a total length of 100 mm and were activated in their distal branch, obtaining the lengths of 5, 10 and 15 mm measured from the slot of the anterior brackets in the midline. A Digital Universal Testing Machine CMT-5L was used to measure the bending force and the statistical analysis was carried out with the Student's T and Mann-Whitney U test. Results: The TMA alloys had a significantly lower strength in each of the activations 5, 10, 15 mm (13,53; 31,61 and 42,01grams respectively) compared to Elgiloy (31.41; 62,61 y 93,00 grams respectively). While increasing the activation length, the flexural forces increased significantly for both alloys. Conclusion: The suggested forces for the intrusion of lower incisors were reached by the Elgiloy arches.

REFERENCES

1. Dhiman S. Curve of Spee - from orthodontic perspective. Indian J Dent. 2015;6 (4): 199.

2. Nayar S., Dinakarsamy V., Santhosh S. Class I, Class II, and Class III malocclusion : A cross sectional study. J Pharm Bioallied Sci. 2015; 7 (1): 92-5.

3. Ahila S., Sasikala C., Muthu K., Rajdeep T., Abinaya K. Evaluation of the Correlation of Ramus Height, Gonial Angle, and Dental Height with Different Facial Forms in Individuals with Deep Bite Disorders. Ann Med Health Sci Res. 2016; 6 (4): 232-8.

4. Fattahi H., Pakshir H., Baghdadabadi N., Jahromi S. Skeletal and Dentoalveolar Features in Patients with Deep Overbite Malocclusion. J Dent Tehran Univ Med Sci. 2014; 11 (6): 629-38.

5. Bhateja N., Mubassar F., Attiya S. Original article Deep Bite Maloclusion : Exploration ofthe Skeletal and Dental Factors. J Ayub Med Coll Abbottabad. 2016; 28 (3): 449-54.

6. Mustafa, E. Pikdoken, L. Serdar U. Gingival response to mandibular incisor intrusion. Am J Orthod Dentofac Orthop. 2007; 132 (143): e9-e13.

7. Clark A., Sims M., Leppard P. An analysis of the effect of tooth intrusion on the microvascular bed and fenestrae in the apical periodontal ligament of the rat molar. Am J Orthod Dentofac Orthop. 1991; 99 (1): 21-9.

8. Ganugapanta V., Ponnada S., Praveen K. Computed Tomographic Evaluation of Condylar Symmetry and Condyle-Fossa Relationship of the Temporomandibular Joint in Subjects with Normal Occlusion and Malocclusion : A Comparative Study. J Clin Diagnostic Res. 2017;11 (2): 29-33.

9. Varlik S., Alpakan Ö., Türköz Ç. Deepbite correction with incisor intrusion in adults: A long-term cephalometric study. Am J Orthod Dentofac Orthop. 2013; 144 (3): 414-9.

10. Preston C., Maggard M., Lampasso J., Chalabi O. Long-term effectiveness of the continuous and the sectional archwire techniques in leveling the curve of Spee. Am J Orthod Dentofac Orthop. 2008; 133 (4): 550-5.

11. Ng J., Major P., Heo G., Flores-Mir C. True incisor intrusion attained during orthodontic treatment: A systematic review and metaanalysis. Am J Orthod Dentofac Orthop. 2005; 128 (2): 212-9.

12. De Almeida M., Marçal A., Fernandes T., Vasconcelos J., De Almeida R., Nanda R. A comparative study of the effect of the intrusion arch and straight wire mechanics on incisor root resorption: A randomized, controlled trial. Angle Orthod. 2018; 88 (1): 20-6.

13. Chiqueto K., Martins D., Janson G. Effects of accentuated and reversed curve of Spee on apical root resorption. Am J Orthod Dentofac Orthop. 2008; 133 (2): 261-8.

14. Beléndez T., Neipp C., Beléndez A. La introducción del concepto de fotón en bachillerato. Rev Bras Ensino Física. 2013; 24 (4): 399-407.

15. Gopokrishnan S., Melath A., Ajith V., Binoy M. A Comparative Study of Bio Degradation of Various Orthodontic Arch Wires : An In Vitro Study. J Int oral Heal. 2015; 7 (1): 12-7.

16. Schwertner A., Almeida R. R. De, Jr. A. G., Almeida M. R De. Photoelastic analysis of stress generated by Connecticut Intrusion Arch (CIA). Dental Press J Orthod. 2017; 22 (1): 57-64.

17. Aparecida C., Abrão J., Braga S. Forces in stainless steel , TiMolium and TMA intrusion arches , with different bending magnitudes Forças em arcos de intrusão , em aço. Braz Oral Res. 2007; 21 (2): 140-5.

18. Martins N., Poletti T., Conti A., Oltramari- Navarro P., Lopes M., Flores-Mir C., et al. Comparison of mechanical properties of beta-titanium wires between leveled and unleveled brackets: an in vitro study. Prog Orthod. 2014; 15 (1): 42.

19. Szuhanek C., Fleser T., Glavan F. Mechanical Behavior of Orthodontic TMA Wires. WSEAS Trans Biol Biomed. 2010; 7 (3): 277-86.

20. Juvvadi S., Kailasam V., Padmanabhan S., Chitharanjan A. Physical, mechanical, and flexural properties of 3 orthodontic wires: An in-vitro study. Am J Orthod Dentofac Orthop. American Association of Orthodontists; 2010; 138 (5): 623-30.

21. Es-Souni M., Fischer-Brandies H., Es- Souni M. On the In Vitro Biocompatibility of Elgiloy, a Co-based Alloy, Compared to Two Titanium Alloys. J Orofac Orthop der Kieferorthop die. 2003; 64 (1): 16-26.

22. El-Bialy T., Alobeid A., Al-Suleiman M., Hasan M. Mechanical properties of cobaltchromium wires compared to stainless steel and β-titanium wires. J Orthod Sci. 2014; 3 (4): 137.

23. Sharma S., Vora S., Pandey V. Clinical Evaluation of Efficacy of CIA and CNA Intrusion Arches. J Clin Diagnostic Res. 2015; 9 (9): 29-33.

24. McFadden W., Engstrom C., Engstrom H., Anholm J. A study of the relationship between incisor intrusion and root shortening. Am J Orthod Dentofac Orthop. 1989; 96 (5): 390-6.

25. Freitas B., Abas M., Dias L., Fernandes P., Freitas H., Bosiod J. Case report. Am J Orthod Dentofac Orthop. 2018; 153 (4): 577-87.

26. Aydogdu E., Ozsoyb O. Effects of mandibular incisor intrusion obtained using a conventional utility arch vs bone anchorage. Angle Orthod. 2011; 81 (5): 767-75.

27. Prabhakar R., Karthikeyan M. K., Saravanan R., Kannan K. S., Raj M. R. A. Anterior Maxillary Intrusion and Retraction with Corticotomy- Facilitated Orthodontic Treatment and Burstone Three Piece Intrusive Arch. J Clin Diagnostic Res. 2013; 7 (245): 3099-101.

28. Ricketts R. Bioprogressive therapy as an answer. Am J Orthod. 1976; 70 (3): 241-68.

29. Ricketts R. Bioprogressive therapy as an answer to orthodontic needs Part II. Am J Orthod. 1976; 70 (4): 359-97.

30. Goel P., Tandon R., Agrawal K. A comparative study of different intrusion methods and Attribution (BY-NC) - (BY) You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggest the licensor endorses you or your use. (NC) You may not use the material for commercial purposes. their effect on maxillary incisors. J Oral Biol Craniofacial Res. 2014; 4 (3):186-91.

31. Greig D. Bioprogressive therapy: overbite reduction with the lower utility arch. Br J Orthod. 1983;10 (4): 214-6.

32. Ravindra K., Sridhar K., Manjula W. Comparison of intrusion effects on maxillary incisors among mini implant anchorage, J-hook headgear and utility arch. J Clin Diagnostic Res. 2014; 8 (7): 21-4.

33. Ricketts R., Bench R., Gugino C., Hilgers J., Schulhof R.Técnica bioprogresivade Ricketts. Buenos Aires: Medica Panamericana; 1983.