Reasons for replacement of amalgam dental restorations

Dahl, Jon E.; Eriksen, Harald M.

doi:10.1111/j.1600-0722.1978.tb00644.x

Cited by 27 publications

(26 citation statements)

References 10 publications

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“…Most studies did not use approximal ledges as a failure characteristic, presumably due to the absence of radiographs. When approximal ledges were used as a criterion (Skogedal and Heloe, 1979;Dahl and Eriksen, 1978;Anusavice, 1989), results showed a lower frequency (10-32%) than that in the present study (43%). The high percentage of ledges was particularly remarkable in the present study.…”

Section: Discussioncontrasting

confidence: 83%

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Prevalence and Need for Replacement of Amalgam and Composite Restorations in Dutch Adults

et al. 1990

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In 1986, the first nationwide epidemiological survey of adult oral health and attitudes to oral health care was carried out in The Netherlands. One of the aims of this study was to evaluate the prevalence and the quality (in terms of need for replacement) of amalgam and composite restorations in the Dutch adult population. A group of 600 dentate individuals, 20-44 years of age, was examined. Stratified cluster sampling included as factors age, gender, socio-economic status, and area of residence. Two additional parameters were studied: frequency of visiting a dentist and type of health insurance. Oral examinations consisted of direct (mirror and explorer) and indirect (color slides and bite-wing radiographs) observations with use of well-defined criteria. On average, 13.4 restorations per individual were present, of which 23.3% were classified as unsatisfactory. A great difference in prevalence and quality data was found among several types of restorations. Test results (ANOVA) for effects of age, gender, socio-economic status, area of residence, frequency of visiting a dentist, and insurance on the prevalence of (un)satisfactory restorations resulted nearly always in significant effects of only age and frequency of visits to a dentist. There was a tendency (p less than 0.05) for the prevalence of (un)satisfactory restorations to be higher with increasing age.(ABSTRACT TRUNCATED AT 250 WORDS)

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Section: Discussioncontrasting

confidence: 83%

“…Some studies (Dahl and Eriksen, 1978;Rytomaa et al, 1984;Eriksen et al, 1986) showed marginal (recurrent) caries to be the most important factor leading to replacement of restorations, followed by marginal breakdown and restoration fracture. In general, this corroborates the findings in the present study.…”

Section: Discussionmentioning

confidence: 98%

Prevalence and Need for Replacement of Amalgam and Composite Restorations in Dutch Adults

et al. 1990

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“…Cross-sectional studies in the USA have reported similar results [Klausner and Charbeneau, 1985;Kelsey et al, 1981]. In Canada, the percentage of amalgam replacements because of secondary caries has been reported to be between 20 and 56% [Lavelle, 1976;Boyd and Richardson, 1985;MacInnis et al, 1991], whereas in Europe the percentages have been between 34 and 72 [Dahl and Eriksen, 1978;Mjör, 1981;Qvist et al, 1986Qvist et al, , 1990Allander et al, 1990;Jokstad and Mjör, 1991;Mjör and Toffenetti, 1992;Foster, 1994;Gruythuysen et al, 1996;Mjör and Qvist, 1997].…”

supporting

confidence: 51%

Distribution of Three Cariogenic Bacteria in Secondary Carious Lesions around Amalgam Restorations

González-Cabezas¹,

Gregory

et al. 1999

Caries Res

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Secondary dental caries remains an unresolved problem in dentistry and little is known of its microbial etiology. The purpose of this study was to compare the distribution of the three most suspected cariogenic groups of bacteria, mutans streptococci. Actinomyces naeslundii genospecies 2 and lactobacilli, in natural secondary caries around amalgam restorations. Extracted teeth with secondary caries were sectioned to obtain three samples that were randomly distributed to three different groups. Each group was immunolabeled with antibodies to either Streptococcus mutans, A. naeslundii genospecies 2 or Lactobacillus casei and subsequently labeled with secondary fluorescent antibodies. All samples were analyzed three–dimensionally using confocal microscopy. The results indicated that the three different bacteria were widely present and could have an important role in the development of secondary caries around amalgam restorations.

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“…Signs of intermediate remineralization processes (presence of dark zones) were most often seen in relation to the fluoride-containing amalgam. These findings arc discussed in relation to other differences between die amalgams, such as sealing property and corrosion proneness.Secondary caries is a well-known prob lem and is one of the main reasons for re placement of amalgam restorations [Dahl and Eriksen, 1978], The considerably lower frequency of secondary caries around sili cate cement restorations [Laswell, 1967] has been ascribed to the content of fluoride in these materials [Phillips and Swartz, 1957; Norman et al, I960, 1961], It has been shown that the enamel surrounding sil icate cement restorations in vivo has an in creased content of fluoride [Hallsworth and Weathered, 1969; liaise and Hals, 1976], The effect of various fluoride salts added to dental amalgams has therefore been tested in vitro [limes and Youdelis, 1966;Custer and Coyle, 1970;Jerman, 1970;Minoguchi et al, 1967;Forsten, 1976;Fazzi et al. …”

mentioning

confidence: 99%

Artificial Caries-Like Lesions around Conventional, Fluoride-Containing and Dispersed Amalgams

Heintze¹,

Mörnstad²

1980

Caries Res

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The study was undertaken to evaluate differences in development of caries-like lesions (wall lesions) around three principally different amalgams (conventional, fluoride-containing and dispersed) under standardized conditions. Amalgam restorations were made on sound buccal and lingual surfaces of extracted premolars. After 10 weeks in an acidified gelatin gel the teeth were sectioned through the restorations and planoparallel ground sections were produced. The enamel surrounding the restoration was studied by polarized light microscopy after imbibition with quinoline (n = 1.62). It was found that the depth of the wall lesion and the extent of demineralized enamel were significantly less around the fluoride-containing amalgam than around the other two. Although not always statistically significant, the largest extent of demineralization was seen in wall lesions surrounding the dispersed amalgam. The number, depth and extent of wall lesions were significantly smaller in the cervical part of the cavities than in the coronal part. Signs of intermediate remineralization processes (presence of dark zones) were most often seen in relation to the fluoride-containing amalgam. These findings are discussed in relation to other differences between the amalgams, such as sealing property and corrosion proneness.

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Reasons for replacement of amalgam dental restorations

Abstract: Recurrent caries appears to be the most frequently occurring reason for replacement of amalgam dental restorations. Recent developments of amalgam alloys have improved the clinical appearance of such fillings but the possible influence on their durability is uncertain.

Cited by 27 publications

References 10 publications

Prevalence and Need for Replacement of Amalgam and Composite Restorations in Dutch Adults

Prevalence and Need for Replacement of Amalgam and Composite Restorations in Dutch Adults

Distribution of Three Cariogenic Bacteria in Secondary Carious Lesions around Amalgam Restorations

Artificial Caries-Like Lesions around Conventional, Fluoride-Containing and Dispersed Amalgams

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