Pulpal effects of glass ionomer cements

Plant, C G; Browne, R.M.; Knibbs, P J; Britton, A. S.; Sorahan, Tom

doi:10.1111/j.1365-2591.1984.tb00381.x

Cited by 41 publications

(10 citation statements)

References 23 publications

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“…The rank correlation coefficients support the hypothesis that the closer bacteria are to the pulp, the more severe is the associated inflammation. In addition, the results of the analysis substantiated previous findings that the thicknras of the remaining dentine had no significant effect on the inflammator>' response (Plant & Anderson 1978, Plant et al 1984, Tobias era/. 1989.…”

Section: Discussionsupporting

confidence: 81%

“…Investigations conducted in our laboratory indicate that pulpal inflammation in experimenul cavities filled with glass ionomer luting, base and restorative materials is related to Correspondence: Dr R. S. Tobias, Department of Oral Pathology, University of Birmingham Dental School, St Chad's Quemsway, Birmingham B4 6NN,UK. the amount of microbial microleakage at tbe interface of cavity wall and material (Browne et al 1983, Plant et al 1984, Tobias et al 1989). However, some workers beiieve that such microbial microleakage does not accotint for the post-cementadon sensitivity associated with glass ionomer ludng cements (Fitzgerald et al 1987, Heys et al 1987, but that premature moisture contamination of the glass ionomer before the setting reaction is complete tnay allow fluids to contact the cut dentine surfaces, thus causing sensitivity.…”

Section: Introductionmentioning

confidence: 99%

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Pulpal response to two semihydrous glass ionomer luting cements

et al. 1991

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This study compared the pulpal responses to two innovative semihydrous glass ionomer luting cements (STA and ZIN) with those previously obtained for a conventional anhydrous glass ionomer luting cement, Aquacem. ZIN contained zinc oxide in the formulation. The study was conducted according to the BSI (1989) recommendations for testing restorative materials in vivo. ZIN was associated with minimal pulpal changes and microbial microleakage, and differed little from the control material, Kalzinol. The pulpal response to STA was similar to that observed for Aquacem, but was associated with less microbial microleakage. The statistical model demonstrated a significant association between bacterial presence within the experimental cavity and pulpal inflammation. The closer that bacteria were to the pulp, the more severe was the ensuing inflammation.

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Section: Discussionsupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Pulpal response to two semihydrous glass ionomer luting cements

et al. 1991

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“…1990). However, human histological assessment showed evidence of only mild to moderate pulpal inflammatory responses beneath chemically cured GIC (Cooper 1980;Plant et al . 1984;Ucok 1986) and the class of materials is generally considered to be pulpally bland in clinical use (Christensen 1990).…”

Section: Discussionmentioning

confidence: 99%

Component release from light‐activated glass ionomer and compomer cements

Hamid

Okamoto

Iwaku

et al. 1998

J of Oral Rehabilitation

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The purpose of this study was to identify and quantify any component released from seven commercially available light-cured or resin-modified glass ionomer and compomer cements. Twenty-one separate cylindrical stainless steel moulds 6 mm in diameter and 1.0 mm deep were filled with one of seven glass ionomer or compomer cements, light activated and then immediately immersed in separate containers of distilled water. Water samples were retrieved over a time period of up to 30 days and retained for analysis. An occlusal cavity 6 mm in diameter was prepared in extracted human third molar teeth with a remaining dentin thickness of 1.6-2.0 mm. A polypropylene chamber was attached to the cemento-enamel junction of each tooth to contain 1 mL of distilled water. Ten teeth were each filled with one of three cements and light activated. Water samples (eluates) were retrieved over a period of time. All samples were analysed by high performance liquid chromatography. Only one component, hydroxyethyl methacrylate (HEMA), was detected in the eluates from both tooth and mould samples. Analysis of diffusion of the HEMA through dentin showed a relatively sustained movement into the pulp space during the first day, with exponential decline thereafter. Our data show that HEMA was released from all of the light activated glass ionomer cements studied and from the compomer, both directly into water and through dentin. This release may be relevant both to the risk of adverse pulpal responses in patients and to the risk of allergy in patients and dental personnel.

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“…Some with or without a base compared with the authors have ascribed the findings to bac-pulp responses to silicate cement, zinc oxideterial growth on the dentinal cavity wails eugenol cement and a two-paste composite (2), while other authors did not fmd an ab-with a base. Furthermore, we aimed to invessolute correlation and have claimed that ad-tigate the importance of the presence and ditional factors play an etiologic role (3)(4)(5).…”

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confidence: 99%

Monkey pulp reactions to restorative materials

Hörsted¹,

Simonsen²,

Larsen³

1986

European J Oral Sciences

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— Deep buccal cavities in 99 teeth in eight young monkeys were filled with the following combination of materials: a light‐cured microfilled composite with or without a base, a chemically cured composite with a base, a silicate cement, and a zinc oxide‐eugenol cement. The acid etch technique and intermediate layer of resin was used in the composite group. Pulp reactions and presence and location of bacteria were studied after 8 days and after 90 days. In the short observation period the inflammatory reactions were more pronounced when unlined composite fillings were evaluated compared with silicate cement fillings and with lined fillings. Bacteria were seen in all unilined cavities and a significant association between presence of bacteria and moderate to severe inflammatory responses was found. The most severe inflammatory reactions were seen when bacteria were found in the dentinal tubules. After 90 days slight inflammatory changes prevailed in all groups. A significant correlation between bacteria and inflammatory reactions could still be observed.

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Pulpal effects of glass ionomer cements

Cited by 41 publications

References 23 publications

Pulpal response to two semihydrous glass ionomer luting cements

Pulpal response to two semihydrous glass ionomer luting cements

Component release from light‐activated glass ionomer and compomer cements

Monkey pulp reactions to restorative materials

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