The interaction of a magnetically retained denture with osseointegrated implants

Highton, R.; Caputo, Angelo A.; Kinni, Mark E.; Matyas, J.

doi:10.1016/0022-3913(88)90255-7

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…All magnetic assemblies investigated in this study were closed-field systems, so the retention reduced rapidly with increased separation. 16 …”

Section: Discussionmentioning

confidence: 99%

“…The results were permanent retention and proper dispersion of occlusal force of the magnetic attachment compared to other attachment systems. 16 17 18 Also, magnetic attachment is easily dislodged by lateral force, which prevents the damage of implant. Clinical application of magnetic attachment has become easier as several types of magnetic attachment have been introduced.…”

Section: Introductionmentioning

confidence: 99%

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The influence of the number and the type of magnetic attachment on the retention of mandibular mini implant overdenture

Lee

Shin

2017

J Adv Prosthodont

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PURPOSEThe aim of this study was to compare the retention of mini implant overdenture by the number, the type of magnetic attachment, and the directions of applied dislodging force.MATERIALS AND METHODSThe experimental groups were designed by the number and type of magnetic attachment. Twenty samples were tested with Magden implants. Each attachment was composed of the magnet assembly in overdenture sample and the abutment keeper in a mandibular model. Dislodging forces were applied to the overdenture samples (50.0 mm/min) in 3 directions. The loading was repeated 10 times in each direction. The values of dislodging force were analyzed statistically using SPSS at 95% level of confidence.RESULTSThe retentive force of group 2 was greater than that of group 1 in both types of attachment in every direction (P < .05). Oblique retentive force of flat type magnetic attachment was higher than that of cushion type attachment in both groups (P < .05). In group 1, oblique retentive force showed the highest and anterior-posterior retentive force showed the lowest value in both attachment types (P < .05). In group 2, both types of attachment showed the lowest retentive force with anteriorposterior direction of dislodging force (P <.05).CONCLUSIONProper retentive properties for implant overdenture were obtained, regardless of the number and type of magnetic attachment. In both types of magnetic attachment, the greater retentive force was attained with more implants. Oblique retentive force of flat type magnetic attachment was greater than that of cushion type. Among all subgroups, anterior-posterior retentive force was the lowest among three different directions of dislodging force.

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“…All magnetic assemblies investigated in this study were closed-field systems, so the retention reduced rapidly with increased separation. 16 …”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of the number and the type of magnetic attachment on the retention of mandibular mini implant overdenture

Lee

Shin

2017

J Adv Prosthodont

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“…Os resultados obtidos, durante quatro anos, mostraram que as próteses totais magnéticas podem ser uma alternativa econômica à extração dental. HIGHTON et al (1988) realizaram testes in vitro para avaliar as características de retenção de uma prótese magnética sobre implantes. Como vantagem sobre os sistemas convencionais observou-se que, mesmo após 44 mil ciclos de retirada e recolocação da prótese, os imãs não perdiam força retentiva, diferentemente dos sistemas baseados na retenção por atrito.…”

Section: Revisão Da Literaturaunclassified

Estudo de materiais alternativos para aplicação em sistemas de próteses odontológicas com conexões magnéticas

Marques¹

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Ferromagnetic alloys have been investigated as potential candidates for dental prosthesis applications in replacement for magnetic attachments made of noble and expensive alloys. Three stainless steels were investigated: 17-4 PH produced by powder injection (PIM), PM2000 obtained by mechanical alloying and oxide dispersion strengthened, and nickel free stainless steel 1802. In the in vitro cytotoxicity analysis, none of the three steels tested showed cytotoxic effects. The corrosion resistance of stainless steels was evaluated by electrochemical impedance spectroscopy (EIS) and anodic potentiodynamic polarization, in sodium phosphate buffer solutions (PBS) at 25°C. The AISI 316L stainless steel was also tested under the same conditions for comparison reasons. All the stainless steel samples were passive in the electrolyte used and presented susceptibility to pitting. The steel that showed the highest pitting resistance was the PM2000, whereas the 1802 had the lowest resistance to pitting among the tested ones. The Mott-Schottky diagrams suggested that the passive film over the surface of PM2000 steel is at least one decade less doped compared to 316L stainless steel, so less defective in its structure. The results pointed out to the PM2000 as a potential candidate for substitution of high cost magnetic alloys used in dental prosthesis.

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Tarnish and corrosion with the use of intraoral magnets

Drago

1991

The Journal of Prosthetic Dentistry

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The interaction of a magnetically retained denture with osseointegrated implants

Cited by 8 publications

References 8 publications

The influence of the number and the type of magnetic attachment on the retention of mandibular mini implant overdenture

The influence of the number and the type of magnetic attachment on the retention of mandibular mini implant overdenture

Estudo de materiais alternativos para aplicação em sistemas de próteses odontológicas com conexões magnéticas

Tarnish and corrosion with the use of intraoral magnets

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