Abstract
The preservation of remaining root structure and alveolar bone covering them with denture has been used since many years. Tooth-retained overdentures transfer occlusal forces to the alveolar bone through the periodontal ligament of the retained tooth roots and thereby prevent bone resorption. Applications of magnets in overdenture technique has been widely used in dentistry in the field of prosthodontics, as they can be manufactured in small dimensions as retentive devices for complete denture, removable partial dentures, obturators and maxillofacial prosthesis. This article presents a simple and efficient method of fabrication of mandibular over denture retained by magnets in a patient whose mandibular residual ridge is severely resorbed with few remaining teeth and maxillary conventional removable partial denture. Mandibular over denture retained by magnets assembly consist of magnet and coping with keeper on remaining tooth structure to rehabilitate the patient since magnetic attachments can provide support, stability and retention.
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References
Mensor NC Jr (1977) Attachment fixation for overdentures, Part I. J Prosthet Dent 37:366–373
Rutkunas V, Mizutani H (2004) Retentive and stabilizing properties of stud and magnetic attachments retaining mandibular overdenture. An in vitro study. Stomatol Baltic Dent Maxillofac J 6:85–90
Saha S, Ray-Chaudhuri A (2009) Mandibular implant-retained complete overdenture using retentive abutments: a case report. Dent Update (England) 36:154–158
Moghadam BK, Scandrett FR (1979) Magnetic retention for overdentures. J Prosthet Dent 41:26–29
Becker J (1970) Permanent magnets. J Appl Phys 233:92–100
Strnat KJ (1972) The hard magnetic properties of rare earth-transition metal alloys. IEEE Trans Magn 8:511–516
Tawara Y, Strnat KJ (1976) Rare earth-cobalt permanent magnets near the 2–17 composition. IEEE Trans Magn 12:954–958
Sagawa M, Fujimura S, Yamamoto H, Matsuura Y, Hiraga K (1984) Permanent magnet materials based on the rare earth-iron-boron tetragonal compounds. IEEE Trans Magn 20:1584–1589
Sagawa M, Fujimura S, Togawa N, Yamamoto H, Matsuura Y (1984) New material for permanent magnets on a base of Nd and Fe. J Appl Phys 55:2083–2087
Croat JJ, Herbst JF, Lee RW, Pinkerton FE (1984) Pr-Fe and Nd-Fe-based materials: a new class of high-performance permanent magnets. J Appl Phys 55:2078–2082
Maeda Y, Nakao K, Yagi K, Matsuda S (2006) Composite resin root coping with a keeper for magnetic attachment for replacing the missing coronal portion of a removable partial denture abutment. J Prosthet Dent 96:139–142
Van Waas MA, Kalk W, van Zetten BL, van Os JH (1996) Treatment results with immediate overdentures: an evaluation of 4.5 years. J Prosthet Dent 76:153–157
Obatake RM, Collard SM, Martin J, Ladd GD (1991) The effects of sodium fluoride and stannous fluoride on the surface roughness of intraoral magnet systems. J Prosthet Dent 66:553–558
Boeckler AF, Morton D, Ehring C, Setz JM (2008) Mechanical properties of magnetic attachments for removable prostheses on teeth and implants. J Prosthodont 17:608–615
Gillings BRD (1981) Magnetic retention for complete and partial overdentures, Part I. J Prosthet Dent 45:484–491
Okuno O, Ishikawa S, Imuro FT, Kinouchi Y, Yamada H, Nakano T et al (1991) Development of sealed cup yoke type dental magnetic attachment. Dent Mater J 10:172–174
Sasaki H, Kinouchi Y, Tsutsui H, Yoshida Y, Karv M, Ushita T (1984) Sectional prostheses connected by samarium–cobalt magnets. J Prosthet Dent 52:556–558
Akaltan F, Can G (1995) Retentive characteristics of different dental magnetic systems. J Prosthet Dent 74:422–427
Matsumura H, Kawasaki K (2000) Magnetically connected removable sectional denture for a maxillary defect with severe undercut: a clinical report. J Prosthet Dent 84:22–26
Riley MA, Walmsley AD, Harris IR (2001) Magnets in prosthetic dentistry. J Prosthet Dent 86:137–142
Gillings BR (1985) Magnetic denture retention systems. In: Prieskel HW (ed) Precision attachments in prosthodontics, vol II. Quintessence, Chicago, pp 19–24
Barnothy MF (1964) Biological effects of magnetic fields. Plenum, New York, pp 29–306
Drago CJ (1991) Tarnish and corrosion with the use of intra oral magnets. J Prosthet Dent 66:536–540
Evans RD, Mc Donald F (1995) Effect of corrosion products (Neodymium Iron Boron) on oral fibroblast proliferation. J Appl Biomater 6:199–202
Gillings BR (1976) Magnetic retention systems for overdentures. Aust Soc Prosthet Bull. 6–9
Gillings BR (1983) Magnetic retention for overdentures, part II. J Prosthet Dent 49:607–618
Ohkubo C, Kobayashi M, Okamoto N et al (2009) Implant overdenture using Konus telescope on one-piece implant: a case report. Eur J Prosthodont Restor Dent 17:188–191
Gallego L, Junquera L, Llorente S (2009) Oral carcinoma associated with implant-supported overdenture trauma: a case report. Dent Traumatol 25:3–4
Schneider GB, Synan WJ (2011) Use of a single implant to retain a mandibular complete overdenture on the compromised atrophic alveolar ridge: a case report. Spec Care Dentist 31:138–142
Flanagan D (2009) An implant-retained maxillary overdenture to obturate a patent oronasal communication: a case report. J Oral Implantol 35:12–17
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Anupam, P., Anandakrishna, G.N., Vibha, S. et al. Mandibular Overdenture Retained by Magnetic Assembly: A Clinical tip. J Indian Prosthodont Soc 14 (Suppl 1), 328–333 (2014). https://doi.org/10.1007/s13191-012-0194-x
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DOI: https://doi.org/10.1007/s13191-012-0194-x