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Electrogalvanism, Intraoral (0):
Recent article
Electrogalvanism, Intraoral
Dental Materials (24)7 2008
Abstract
Statistical analysis showed that the mean absolute corrosion potential differences and the simultaneous confidence intervals of the couples were, respectively, amalgam/noble metal: 62 (31)mV and (27, 99)mV, amalgam/amalgam: 11 (14)mV and (7, 15)mV and noble metal/noble metal: 7 (10)mV and (0, 19)mV....
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PMID: 18093640
PDF is available here.
PDF is available here.
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Abstract
Our purpose in this article was to consider the literature to date with regard to potential mechanical, clinical, and health implications of orthodontic corrosion....
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PMID: 18405823
PDF is available here.
PDF is available here.
Abstract
Because of their strength, zirconia ceramics may be used to restore removable partial denture abutments. This carries the advantages of elimination of the galvanic current between primary and secondary copings, along with thermal protection of abutment teeth. This article describes the fabrication o...
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PMID: 19149067
PDF is available here.
PDF is available here.
Dental Materials (23)10 2007
Abstract
It was found that a bimetallic cell consisting of Remanium CS and Remanium GM 380 alloys has a very low EMF (a few mV) and is not a potential source of galvanic currents in the oral cavity. However, galvanic cells prepared from Amalcap plus and Remanium CS or Remanium GM 380 showed a much greater EM...
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PMID: 17184832
PDF is available here.
PDF is available here.
Dental Materials (23)7 2007
Abstract
A marked decrease in tensile failure load of the joints was recorded after exposure to artificial saliva. Selective attack was identified on the aged solder surfaces, which was attributed to the micro-galvanic effect brought about by the preponderance of Cu-rich phases in the solder microstructure....
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PMID: 16911820
PDF is available here.
PDF is available here.
Angle Orthodontist (77)2 2007
Abstract
The MIM brackets exhibited potential differences similar to those seen for the conventional brackets. The greatest potential difference was found for MIM brackets with nickel-titanium wires (512 mV), whereas MIM brackets with copper-nickel-titanium wires had the smallest difference (115 mV). Scannin...
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PMID: 17319774
PDF is available here.
PDF is available here.
Stomatologiia (86)3 2007
Abstract
The most important reasons for metal intolerance used for teeth treatment and dental prosthetics are allergic intolerance for the given metals and galvanic currents appearance in the oral cavity. Although they often have similar symptoms their differential diagnostics is very important for determina...
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PMID: 17690637
PDF is available here.
PDF is available here.
Neuroendocrinology Letters (27 Suppl 1) 2006
Abstract
Galvanic effects as well as metal particles may induce a series of local or systemic pathological phenomena in sensitive individuals. The occurrence of pathologically acting galvanic effects is influenced not only by the composition and combination of different dental alloys, but to a significant de...
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PMID: 16804514
PDF is available here.
PDF is available here.
New England Journal of Medicine (355)22 2006
Abstract
Abstract
It is concluded that among the three couples with two different coupling methods, Ti/Ag-Au-Pd couple exhibited best corrosion resistance in a room temperature Ringer's solution....
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PMID: 16010039
PDF is available here.
PDF is available here.
Dental Materials (20)9 2004
Abstract
Galvanic current-time transients were typically characterized by an immediate and rapid rise to a peak current, followed by an exponential decay to a much lower value at 15 s. For couples with a restoration < or = 12 mo old, median peak current and median current at 15 s were 2.26 microA (range 0.24...
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PMID: 15451237
PDF is available here.
PDF is available here.
Abstract
The statistical analysis indicated that electrogalvanic activity is reduced significantly when the amalgam surface is treated with tin oxide or silver nitrate. Both zinc-containing amalgams in their as-carved condition exhibited higher anodic charge densities than did their zinc-free counterparts. G...
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PMID: 14664264
PDF is available here.
PDF is available here.
Contact Dermatitis (48)6 2003
Abstract
The purpose of this study was to examine the association of dental materials with oral lichen planus (OLP) and, particularly, the effects of amalgam, amalgam corrosion status, gold and dissimilar metals in continuous contact. A case-control study was performed with 43 OLP cases from the Oral Medicin...
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PMID: 14531872
PDF is available here.
PDF is available here.
Abstract
The basic mechanism of dental amalgam corrosion has been thoroughly studied during the last 50 years by various experimental techniques, most often carried out in vitro. Electrochemical methods were extensively employed, and it was recognized that a gradual dealloying of the more electroactive compo...
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PMID: 12731616
PDF is available here.
PDF is available here.
British Dental Journal (194)6 2003
Abstract
Dental Materials Journal (22)1 2003
Abstract
The ions released from conventional and high-copper amalgams in contact with titanium were quantitatively analyzed in a 0.9% NaCl solution at 37 degrees C when the surface area ratio of titanium/amalgam was set up as 1/10, 1/1, or 10/1. The corrosion potentials of the amalgams and titanium were meas...
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PMID: 12790301
PDF is available here.
PDF is available here.
Schweizer Monatsschrift fur Zahnmedizin = Revue mensuelle suisse d'odonto-stomatologie = Rivista mensile svizzera di odontologia e stomatologia / SSO (113)3 2003
Abstract
Many of the methods and devices used for incompatibility testing of metals and alloys today are of questionable scientific value. Neither epicutaneous testing nor other diagnostic adjuncts from the realm of alternative medicine, nor patient-history data contained in so-called dental alloy passports,...
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PMID: 12708327
PDF is available here.
PDF is available here.
Dental Materials (19)1 2003
Abstract
The results showed that the best couples were Ti/Pontallor-4, Ti/Ter Ti, Ti/R800 and Ti/Jelstar. The least acceptable couples were Ti/amalgam, SSTi/SSTi and Ti/R2000, while the Ti/RCS couple showed unstable galvanic corrosion behavior. SIGNIFICANCE: It is concluded that the following alloys can be u...
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PMID: 12498897
PDF is available here.
PDF is available here.
Dental Materials (18)5 2002
Abstract
Interactions of dental cast alloys with the oral tissues take place by different mechanisms; e.g. bacterial adherence promotion, toxic and subtoxic effects and allergy. Whereas bacterial adhesion promotion may be counteracted by adequate oral hygiene measures, the other mechanisms may lead to clinic...
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PMID: 12175579
PDF is available here.
PDF is available here.
Implant Dentistry (11)2 2002
Abstract
Fracture of dental implants is a rare phenomenon with severe clinical results. In this article, the literature is reviewed and various causative factors that may lead to fracture are presented. Galvanic activity has not been mentioned before as a possible cause for implant fracture, yet, it can occu...
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PMID: 12078595
PDF is available here.
PDF is available here.
General dentistry (50)1 2002
Abstract
The presence of more than one dental alloy in the oral cavity often causes pathological galvanic currents and voltage. Due to various and multi-faceted symptomathology, they tend to be a source of significant problems not only for the patient but also for the attending dentist. Very discreet and unc...
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PMID: 12029800
PDF is available here.
PDF is available here.
Dentistry today (20)10 2001
Abstract
Lakartidningen (98)37 2001
Abstract
Abstract
Samples prepared from three different amalgam brands were coupled to two gold alloys and orthodontic brackets. In the resulting galvanic cells, the amalgam coupled to gold were anodic, exhibiting galvanic current densities about one order of magnitude higher than the uncoupled corrosion current dens...
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PMID: 11350575
PDF is available here.
PDF is available here.
Abstract
Many variables are believed to affect the accurate measuring of metallic restoration electrical potentials. This study examined the effects of intra- versus extra-oral location of the reference electrode, the type of metallic probe used to make contact with the restoration, and scratching and brushi...
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PMID: 11106983
PDF is available here.
PDF is available here.
Abstract
We concluded that patients need to be better informed of the potential complications associated with tongue and oral piercings, and that the dental profession can serve this role....
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PMID: 11202888
PDF is available here.
PDF is available here.
Dental Materials (16)5 2000
Abstract
Posts may be involved in galvanic coupling in the presence of oxygen. Galvanic activity in an aerated solution is highly probable upon contact with amalgams, but may also occur if the material in contact is NiCr alloy. Coupling between precious alloys and posts is improbable and can only induce very...
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PMID: 10915898
PDF is available here.
PDF is available here.
New England Journal of Medicine (342)26 2000
Abstract
Implant Dentistry (9)1 2000
Abstract
Passive-fitting mesostructures and superstructures are required to be superimposed on osseointegrated endosseous implants. The tightening of an inaccurate framework to the abutments will transmit stresses to the bone-implant interface. Precision, until now, has been inconsistent and unpredictable wi...
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PMID: 11307240
PDF is available here.
PDF is available here.
Dental Materials (15)5 1999
Abstract
Freshly abraded titanium initially was anodic to both the amalgam and the gallium alloy, but the polarity reversed after a period of exposure. The galvanic potential and current density increased with the increasing Ti/alloy area ratio. The potential increase was smaller and the current increase lar...
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PMID: 10863427
PDF is available here.
PDF is available here.
Abstract
In oral implantology, successful results in osseointegration are obtained in the medium term (6-12 months) with commercially pure titanium implants. However, current superstructures can be of a different nature (precious metal or titanium) and of different manufacture (cast or machine-produced). Pol...
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PMID: 10397182
PDF is available here.
PDF is available here.
Journal of dental technology : the peer-reviewed publication of the National Association of Dental Laboratories (16)6 1999
Abstract
Abstract
I titanium, and titanium-aluminum-vanadium (Ti-6Al-4V); 10 ceramic abutments and 30 sterile Brånemark System implants were also used. Five abutments of each material and 5 implants were incubated individually in rat bone marrow culture, as were 5 of each abutment attached to an implant; bone marrow...
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PMID: 10612915
PDF is available here.
PDF is available here.
British Dental Journal (185)9 1998
Abstract
Galvanic corrosion is an electrochemical reaction between dissimilar metals that has the potential to cause unpleasant and even painful biological effects intra-orally. A case is presented where a full gold crown underwent galvanic change after being placed in contact with an amalgam restoration.
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PMID: 9854339
PDF is available here.
PDF is available here.
Dental Materials (14)3 1998
Abstract
Noble restorative (Au-, Ag-, and Pd-based) alloys coupled to titanium were found to be least susceptible to galvanic corrosion. Co-Cr-Mo, Ni-Cr and Fe-based alloys coupled to tatanium were found to be moderately susceptible to galvanic corrosion due to mechanical-electrochemical interaction. Ni-Cr-B...
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PMID: 10196792
PDF is available here.
PDF is available here.
Abstract
This paper describes an unusual clinical report of degradation of an endodontic silver point within the root canal of a lower right first premolar. Its apical portion was found to be degrading and at one stage a small portion became separated from its main body and was displaced apically. The tooth,...
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PMID: 9868943
PDF is available here.
PDF is available here.
Journal of Endodontics (24)3 1998
Abstract
The purpose of this study was to determine whether electrical current can travel between adjacent teeth through contacting interproximal amalgam restorations. Twenty-two extracted human premolars were restored with class II amalgam restorations. They were then mounted in pairs in self-curing resin,...
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PMID: 9558588
PDF is available here.
PDF is available here.
Abstract
The potential exists for titanium and amalgams to become galvanically coupled in the oral cavity. While low galvanic corrosion rates have been measured in vivo for titanium-amalgam or mercury-free alloy couples, concerns exist over released corrosion products and adverse tissue responses. It was hyp...
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PMID: 9619437
PDF is available here.
PDF is available here.
Stomatologiia (77)3 1998
Abstract
The authors propose to treat stainless steel dentures by grinding on organosilicon binding followed by 2 polishing procedures: with diamond paste and paste based on ultradispersed aluminum oxide powder. This technology improves the corrosion resistance of dentures and eliminates signs of diseases ca...
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PMID: 9643115
PDF is available here.
PDF is available here.
Abstract
The corrosion of 2205 duplex stainless steel was compared with that of AISI type 316L stainless steel. The 2205 stainless steel is a potential orthodontic bracket material with low nickel content (4 to 6 wt%), whereas the 316L stainless steel (nickel content: 10 to 14 wt%) is a currently used bracke...
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PMID: 9228844
PDF is available here.
PDF is available here.
Abstract
Abstract
The aim of the study was to determine, in a randomly selected 20- to 70-year-old Swedish population, the prevalence of oral burning sensations and taste disturbances and their possible correlation to salivary factors, the presence of mandibular dysfunction, the prevalence of teeth, restorative proce...
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PMID: 8876738
PDF is available here.
PDF is available here.
Abstract
A sample of 468 dentists completed a questionnaire on their conceptions of amalgam. A minority (1-3%) reported that amalgam often causes toxic, galvanic and/or allergic side-effects. A considerably larger number (10-30%) stated that such side-effects 'sometimes' occur, while less respondents (6-11%)...
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PMID: 8871035
PDF is available here.
PDF is available here.
Abstract
Cobalt-based alloys (Co-Cr-Mo) are usually used in dentistry as frameworks for removable partial dentures. In their basic form these structures function successfully. However, modifications or repairs of the frameworks may reduce their resistance to corrosion and, as a consequence, may provoke biolo...
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PMID: 8709017
PDF is available here.
PDF is available here.
Schweizer Monatsschrift fur Zahnmedizin = Revue mensuelle suisse d'odonto-stomatologie = Rivista mensile svizzera di odontologia e stomatologia / SSO (106)7 1996
Abstract
Abstract
Dental amalgam is the most widely used filling material in dentistry. In our country there are an estimated 40 million amalgam fillings in place. The mercury present in these fillings has caused health concerns over the last 160 years that amalgam has been used in decayed teeth. The fears have alway...
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PMID: 9027133
PDF is available here.
PDF is available here.
General dentistry (44)4 1996
Abstract
"Oral electricity," "electrogalvanism," or "galvanic currents" has long been recognized as a potential source of oral pain and discomfort. This phenomenon of oral galvanism results from the difference in electrical potential between dissimilar restorative metals located in the mouth. In this case re...
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PMID: 8957826
PDF is available here.
PDF is available here.
General dentistry (44)1 1996
Abstract
Placing a strip of rubber dam or similar insulator between the contacting dissimilar restorations is a diagnostic technique for relieving and evaluating painful galvanic currents. Treatment modalities vary according to severity of pain. In cases of little or no pain, nothing is done, and corrosion p...
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PMID: 8940574
PDF is available here.
PDF is available here.
Abstract
A biological interaction between the oral tissues and base metal alloys may result in corrosion and trace metal ion release, if the materials are not inert in the body. The reactions caused by such an alloy, a nickel-chrome alloy, were established on a woman patient who exhibited dark coloured band-...
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PMID: 8603166
PDF is available here.
PDF is available here.
Dental Materials (11)5 1995
Abstract
The Hg-free eta' phase showed a wide region of passivity. Exposure to mercury made the eta' phase electrochemically more active, and current peaks appeared on the polarization curves. The Hg-free eta' electrode was a cathode to a high-copper dental amalgam. The Hg-contaminated eta' electrode started...
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PMID: 8595831
PDF is available here.
PDF is available here.
Abstract
Electrolytic corrosion is part of a broader electrochemical phenomenon that is responsible for oral galvanism. Because several physiopathologic manifestations are associated with the electrochemical phenomenon of galvanism, making the differential diagnosis can be difficult. In endodontically treate...
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PMID: 8602444
PDF is available here.
PDF is available here.
Dental Materials (11)1 1995
Abstract
OBJECTIVES. The aim of this investigation was to study the effect of surface treatments and electrode area size on the corrosion of cast and machined titanium in contact with conventional and high-copper amalgams in saline solutions with and without added fluoride ions. METHODS. The potentials and t...
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PMID: 7498607
PDF is available here.
PDF is available here.
Abstract
We tested the intraoral microwaves under applied electrotherapy in cephalic neuralgia. The tests have been undertaken on 40 patients divided in 4 groups, according to the nature of the metallic components of the prosthetic appliances. There have been withdrawn practical conclusions regarding fixed p...
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PMID: 9455353
PDF is available here.
PDF is available here.
Abstract
Journal of Dentistry (22)3 1994
Abstract
The infiltration of saliva into the multi-metallic structures on titanium implants brings different types of alloys into temporary or permanent contact. In this way a galvanic cell is established as a result of their potential difference. The galvanic cell phenomenon is compounded by another type of...
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PMID: 8027459
PDF is available here.
PDF is available here.
Abstract
Amalgam has provided valuable and comparatively inexpensive service to patients for a longer time than any other restorative material. Despite the excitement surrounding the use of each new restorative material, each has a shortcoming that amalgam hasn't.
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PMID: 8176074
PDF is available here.
PDF is available here.
Abstract
Although 'oral galvanism' is associated with corrosion, it seems to be an irrelevant phenomenon. It is very difficult to measure correctly electric currents in the mouth, if possible at all, and the value and significance of the results are questionable. Occasionally a patient may perceive an electr...
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PMID: 11830961
PDF is available here.
PDF is available here.
Schweizer Monatsschrift fur Zahnmedizin = Revue mensuelle suisse d'odonto-stomatologie = Rivista mensile svizzera di odontologia e stomatologia / SSO (104)3 1994
Abstract
Dental electrosurgery carries the risk of incidental contact between the active electrode and metallic restorations. So far, on-line measurements of basic physical parameters during dental electrosurgery have not been performed under realistic conditions. The aim of our experimental study in pig jaw...
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PMID: 8165449
PDF is available here.
PDF is available here.
Abstract
Patients with temporomandibular joint dysfunctional activity (TM dysfunction) present with a diverse spectrum of clinical signs and symptoms. The multifactorial aetiology of such disorders has been noted. Diagnostic and therapeutic problems arise due to the inadequacy of quantifying the dysfunction....
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PMID: 8133393
PDF is available here.
PDF is available here.
Abstract
The corrosion pattern of dental amalgam in aqueous media was interpreted theoretically by means of log(ai/a(ref))-pe diagrams. The definitions on which the diagrams were based were given, and their features were described. All sparingly soluble compounds which were expected to be formed in reactions...
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PMID: 8294616
PDF is available here.
PDF is available here.