Problem of Electrogalvanism in the Oral Cavity Caused by Dissimilar Dental Metals

Lain, Everett S.; Schriever, William; Caughron, G. Sherrill

doi:10.14219/jada.archive.1940.0328

Cited by 16 publications

(2 citation statements)

References 6 publications

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“…Pain originating from OG has been noted both from an electronic circuit in the metallic restorations and from silver foil or spoon contact on biting [ 12 , 15 , 18 ]. More recently, these pains have originated from ion flow known as the battery effect in restorative dental works [ 12 , 19 , 20 ]. Severe pain might be referred to or projected to other body regions and experienced as headache, facial pain, or low back pain and also may be regarded as psychosomatic pain or discomfort.…”

Section: Resultsmentioning

confidence: 99%

Oral galvanism related to dental implants

Kim

2023

Maxillofac Plast Reconstr Surg

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Background A range of different chemical interactions can generate an unexpected electronic current in a process called galvanism. Oral galvanism (OG) can also be generated by different chemical actions from diverse intraoral rehabilitated metals, including gold, copper, mercury, titanium, and titanium alloy. The main aim of this manuscript is to review OG, particularly focusing on titanium implants and related metallic materials. We searched the MEDLINE (PubMed), Embase, Scopus, and Google Scholar databases for relevant literature published through December 2019. The keywords included “galvanic current”, “galvanism”, “galvanic corrosion”, “oral galvanism”, combined with “oral”, “oral cavity”, “implant”, and “saliva.” Results Out of 343 articles, 126 articles that met the inclusion criteria were reviewed. We examined and summarized research on OG through a division into four categories: definition and symptoms, diagnosis with testing methods, galvanic corrosion, and oral precancerous lesions with OG. Conclusions Patients with OG have high oral energy and current, and although this phenomenon may be due to the patient’s mental illness, OG due to amalgam or mercury occurs. It is evident that the difference in electron potential caused by different elemental components such as titanium alloy and pure titanium, which are essential for manufacturing the implant fixture and the abutment, and chrome and nickel, which are essential for manufacturing the upper crown, causes OG. Since the oral cavity is equipped with an environment in which electric current can be transmitted easily due to saliva, it is imperative that clinicians review the systemic and local effects of salivation.

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Section: Resultsmentioning

confidence: 99%

Oral galvanism related to dental implants

Kim

2023

Maxillofac Plast Reconstr Surg

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“…In addition to crevice corrosion, galvanic corrosion can also endanger the success of an implant system [6,[9][10][11][12]. Galvanic corrosion is a direct result of current flow between dissimilar metals in contact, such as those used for an implant abutment and a suprastructure.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior between dental implant abutment and cast gold alloy

2004

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Two types of HL hexed abutments of a Steri-Oss system, gold/plastic coping and gold coping, were compared in terms of corrosion behavior. The anodic polarization behavior and the galvanic corrosion between abutments and Type III gold alloys, before and after casting, were analyzed. In addition, the crevice corrosion of the casting samples was analyzed with cyclic potentiodynamic polarization tests using the |Er-Ecorr| value and scanning electron microscopy. Before casting, gold/plastic coping and gold coping were shown to have similar corrosion patterns in the anodic polarization test. Type III casting gold alloy was shown to have a lower corrosion potential and passivation film. The corrosion potential of the gold/plastic coping after casting was higher than that of gold coping, but the passive region for the gold/plastic coping was smaller than that of gold coping. The contact current density between the cast gold alloys and gold/plastic before casting was higher than that between gold coping and cast gold alloy. The contact current density of the samples after casting was shown to be similar to that before casting. The crevice corrosion resistance of cast samples using gold coping was lower than that of cast samples using gold/plastic coping, and severe corrosion was observed by SEM at the abutment-casting gold alloy interface.

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The dental amalgam issue. A review

Hanson¹,

Pleva²

1991

Experientia

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Using an interdisciplinary approach, the current position in the dental amalgam controversy and the potential impact of amalgam mercury on human health are reviewed. Aspects of materials science, corrosion, mercury exposure, toxicology, neurology and immunology are included. New data on mercury exposure from corroded amalgam fillings in vivo are presented. The exposure can reach levels considerably over known threshold limit values. Also, measurements of mercury absorption from intraoral air are presented. The vital importance of avoiding a galvanic amalgam-gold coupling is emphasized. The symptomatology of a disabled patient, who recovered after amalgam removal, has been included. It is concluded that discussion of the dental amalgam issue has suffered from the lack of an interdisciplinary approach. It would be wise to learn from the lesson of acrodynia, and consider amalgam mercury among other possible factors in neurological and immunological diseases of unclear etiology.

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Problem of Electrogalvanism in the Oral Cavity Caused by Dissimilar Dental Metals

Cited by 16 publications

References 6 publications

Oral galvanism related to dental implants

Oral galvanism related to dental implants

Corrosion behavior between dental implant abutment and cast gold alloy

The dental amalgam issue. A review

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