Distalisation of maxillary molars using direct skeletal anchor devices in patients with Class II malocclusions. Literature review
DOI:
https://doi.org/10.59334/ROV.v1i28.165Keywords:
Molar distalization, skeletal anchorage, class II malocclusionAbstract
Introduction: The Angle Class II molar ratio is approximately 20% of the population. When malocclusion is of dental origin, mainly generated by a migration of lateral segments, the most frequent treatment option to generate space and to establish a Class I molar relationship is molar distalization. A large number of treatment devices and protocols have been described in the literature. One of the most used is the Pendulum, but because of its design that uses dental anchorage and its force happens at the level of the crown of the first molars, presents many disadvantages.
Objective: The purpose of this review is to analyze molar distalization devices using direct skeletal anchors, in which the applied force passes near the center of resistance of the upper first molar, in order to determine if they are superior in efficiency and minimization of adverse effects when compared with conventional appliances.
Results: The search process included a total of 25 articles selected based on year of publication and use of skeletal anchorage, 7 articles were finally used for review, based on inclusion and exclusion criteria. Discussion: When comparing the devices, there is great variability in duration of treatment, amount of distalization and rate of distalization. In spite of these differences all showed clinical success to finalize the mechanics of distalization. On the other hand, there is a spontaneous distalization of the second upper premolars and even the first premolars with these devices that do not use these dental pieces as an anchorage, therefore, they remain free and are distalized with the help of the transseptal fibers.
Conclusion: It is concluded that molar distalization has proved to be an effective procedure when using devices with direct skeletal anchors and with a force vector passing close to the resistance center of the first molars. These methods do not generate side effects in the anchoring region when compared to conventional apparatus where there is mesial migration of premolars and anterior parts. In all the cases analyzed, the maxillary molars were distalized to a class I relationship in a short period of time, even in spite of the presence of the second and third maxillary molars.
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References
A.H. Shah, D.H. Shah., (2016), Miniscrew implant-supported Frog appliance for maxillary molar distalization. Journal of the World Federation of Orthodontists 5 35e43. https://doi.org/10.1016/j.ejwf.2016.02.003
Canut J., (2005), Ortodoncia clínica y terapéutica. Editorial Masson. 2° Edición, Barcelona, España.
Caprioglio A., Cafagna A., Fontana M., Cozzani M., (2015), Comparative evaluation of molar distalization therapy using pendulum and distal screw appliances. Korean J Orthod ; 45(4):171-179. https://doi.org/10.4041/kjod.2015.45.4.171
Choi Y., Lee J., Cha J., Park Y., (2011), Total distalization of the maxillary arch in a patient with skeletal Class II malocclusion. Am J Orthod Dentofacial Orthop ;139:823-33. https://doi.org/10.1016/j.ajodo.2009.07.026
Cornelis M., Scheffler N., Mahy P., Siciliano S., De Clerck H., Tulloch J., /2008), Modified miniplates for temporary skeletal anchorage in orthodontics: placement and removal surgeries. J Oral Maxillofac Surg. 66: 1439-45. https://doi.org/10.1016/j.joms.2008.01.037
Cozzani M., Fontana M., Maino G., Maino G., Palpacelli L., Caprioglio A., (2015), Comparison between direct vs indirect anchorage in two miniscrew-supported distalizing devices. Angle Orthod. https://doi.org/10.2319/040715-231.1
Da Costa R., G. Janson G., Castello N., Moura-Grec P., Paim M., Castanha J., (2013), Intraoral distalizer effects with conventional and skeletal anchorage: A meta-analysis. Am J Orthod Dentofacial Orthop ;143:602-15. https://doi.org/10.1016/j.ajodo.2012.11.024
Flores-Mir C., McGrath L., Heo G., Major P., (2013), Efficiency of molar distalization associated with second and third molar eruption stage. A systematic review. Angle Orthod. 83:735–742. https://doi.org/10.2319/081612-658.1
Fontana M., Cozzani M., Mutinelli S., Spena R., Caprioglio A., (2015), Maxillary molar distalization therapy in adult patients: a multicentre study Orthod Craniofac Res ; 18: 221–231. https://doi.org/10.1111/ocr.12098
Fudalej P., Antoszewska J., (2011), Are orthodontic distalizers reinforced with the temporary skeletal anchorage devices effective?. Am J Orthod Dentofacial Orthop ;139:722-9. https://doi.org/10.1016/j.ajodo.2011.01.019
Graber L.W. Ortodoncia principio y técnicas actuales. Elsevier 2012. 5° Edición
Hourfar J., Ludwig B., Kanavakis G., (2014), An active, skeletally anchored transpalatal appliance for derotation, distalization and vertical control of maxillary first molars. Journal of Orthodontics, 41:sup1, s24-s32. https://doi.org/10.1179/1465313314Y.0000000102
Ishida T., Yoon H., Ono T., (2013). Asymmetrical distalization of maxillary molars with zygomatic anchorage, improved superelastic nickel-titanium alloy wires, and open-coil springs. Am J Orthod Dentofacial Orthop ;144:583-93. https://doi.org/10.1016/j.ajodo.2012.10.028
Kilkis D., Bayram M., Celikoglu M, Nur M., (2012), Unilateral maxillary molar distalization with zygoma-gear appliance. Am J Orthod Dentofacial Orthop ;142:e1-e7. https://doi.org/10.1016/j.ajodo.2012.02.026
Lira A., Prado S., Araujo M., Sant’Anna E., Ruellas A., (2013), Distal movement of upper permanent molars using midpalatal mini-implant. Dental Press J Orthod. Mar-Apr;18(2):18.e1-5. https://doi.org/10.1590/S2176-94512013000200006
Longerich U., Thurau M. Kolk A.,(2014), Development of a new device for maxillary molar distalization with high pseudoelastic forces to overcome slider friction: the Longslider—a modification of the Beneslider. Oral Surg Oral Med Oral Pathol Oral Radiol ;118:22-34. https://doi.org/10.1016/j.oooo.2012.08.437
Nienkemper M., Wilmes B., Pauls A., Yamaguchi S., Ludwig B., Drescher D., (2014), Treatment efficiency of mini-implant-borne distalization depending on age and second-molar eruption. J Orofac Orthop ; 75:118-132. https://doi.org/10.1007/s00056-013-0199-z
Nur M., Bayram M., Celikoglu M., Kilkis D., Alper Pampu A., (2012), Effects of maxillary molar distalization with Zygoma-Gear Appliance. Angle Orthod. 82:596–602. https://doi.org/10.2319/091611-595.1
Oh Y., Park H., Kwon T., (2011), Treatment effects of microimplant-aided sliding mechanics on distal retraction of posterior teeth. Am J Orthod Dentofacial Orthop ;139:470-81. https://doi.org/10.1016/j.ajodo.2009.05.037
Oberti G., Villegas C., Ealo M., Palacio J., Baccetti T., (2009), Maxillary molar distalization with the dual-force distalizer supported by mini-implants: a clinical study. Am J Orthod Dentofacial Orthop. 135:282.-5. https://doi.org/10.1016/j.ajodo.2007.10.039
Pseiner B., Wunderlich A., Freudenthaler J., (2016), Upper molar distalization with skeletally anchored TopJet appliance. J. Orofac Orthop ; 74:42-50. https://doi.org/10.1007/s00056-013-0189-1
Saaed N., Park C., Bayome M., Park J., Kim Y., Kook Y., (2015), Skeletal and dental effects of molar distalization using a modified palatal anchorage plate in adolescents. Angle Orthod. 85:657–664. https://doi.org/10.2319/060114-392.1
Sar C., Kaya B., Ozsoy O., Ozcirpici A., (2013), Comparison of two implant-supported molar distalization systems. Angle Orthod. 83:460–467. https://doi.org/10.2319/080512-630.1
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