Fluoride-releasing resin bonding of amalgam restorations in primary teeth: In vitro secondary caries effect

John Hicks, Michael Milano, Susan Seybold, Franklin Garcia-Godoy, Catherine Flaitz

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Purpose: To evaluate the effects of a fluoride-releasing resin designed for amalgam bonding on secondary caries formation in primary teeth restored with amalgams. Materials and Methods: Primary teeth with caries-free buccal and lingual surfaces were selected and underwent a fluoride-free prophylaxis. Cavity preparations were performed in the buccal and lingual smooth surfaces of 20 primary teeth. A fluoride-releasing dimethacrylate resin bonding agent (Alloybond) was placed prior to amalgam restoration (Dispersalloy) of the cavity preparations in 10 teeth. Amalgam restorations placed in 10 teeth following copal cavity varnish (Copalite) served as controls. The teeth were thermocycled in synthetic saliva (500 cycles, 5°-50°C), and then coated with an acid-resistant coating, leaving a Imm rim of sound enamel surrounding the restorations. Artificial secondary caries were created (2.2 mM calcium, 2.2 mM phosphate, 50 mM acetic acid, 0.5 ppm fluoride, pH 3.90). Following lesion formation, longitudinal sections (five per tooth) were prepared for polarized light evaluation. Mean depths for the primary surface lesions were determined using a computer-interfaced digitized tablet. Cavity wall lesion frequencies were also evaluated. Comparisons were made between groups (ANOVA, DMR). Results: Primary surface lesion depth was reduced significantly (P< 0.05) with Alloybond-amalgams (135 ± 14 μm) when compared with Copalite-amalgams (184 ± 21 μm). Cavity wall lesion frequency was decreased (P< 0.05) significantly with Alloybond-amalgams (57%) compared with Copalite-amalgams (89%). The beneficial effect of the fluoride-releasing amalgam bonding agent was not limited to the cavosurface enamel. The caries susceptibility of enamel surfaces adjacent to amalgams with the fluoride-releasing bonding agent was decreased considerably. The incorporation of the amalgam-bonding resin with fluoride-releasing capabilities provided greater protection against a constant cariogenic attack over that for a conventional amalgam restoration.

Original languageEnglish (US)
Pages (from-to)361-364
Number of pages4
JournalAmerican journal of dentistry
Volume15
Issue number6
StatePublished - Dec 1 2002
Externally publishedYes

Fingerprint

Deciduous Tooth
Fluorides
Tooth
Dental Enamel
Cheek
Tongue
Dental Cavity Lining
Sulindac
In Vitro Techniques
Saliva
Acetic Acid
Tablets
Analysis of Variance
Phosphates
Calcium
Light
Acids
alloybond
Copalite

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

Cite this

Fluoride-releasing resin bonding of amalgam restorations in primary teeth : In vitro secondary caries effect. / Hicks, John; Milano, Michael; Seybold, Susan; Garcia-Godoy, Franklin; Flaitz, Catherine.

In: American journal of dentistry, Vol. 15, No. 6, 01.12.2002, p. 361-364.

Research output: Contribution to journalArticle

Hicks, John ; Milano, Michael ; Seybold, Susan ; Garcia-Godoy, Franklin ; Flaitz, Catherine. / Fluoride-releasing resin bonding of amalgam restorations in primary teeth : In vitro secondary caries effect. In: American journal of dentistry. 2002 ; Vol. 15, No. 6. pp. 361-364.
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abstract = "Purpose: To evaluate the effects of a fluoride-releasing resin designed for amalgam bonding on secondary caries formation in primary teeth restored with amalgams. Materials and Methods: Primary teeth with caries-free buccal and lingual surfaces were selected and underwent a fluoride-free prophylaxis. Cavity preparations were performed in the buccal and lingual smooth surfaces of 20 primary teeth. A fluoride-releasing dimethacrylate resin bonding agent (Alloybond) was placed prior to amalgam restoration (Dispersalloy) of the cavity preparations in 10 teeth. Amalgam restorations placed in 10 teeth following copal cavity varnish (Copalite) served as controls. The teeth were thermocycled in synthetic saliva (500 cycles, 5°-50°C), and then coated with an acid-resistant coating, leaving a Imm rim of sound enamel surrounding the restorations. Artificial secondary caries were created (2.2 mM calcium, 2.2 mM phosphate, 50 mM acetic acid, 0.5 ppm fluoride, pH 3.90). Following lesion formation, longitudinal sections (five per tooth) were prepared for polarized light evaluation. Mean depths for the primary surface lesions were determined using a computer-interfaced digitized tablet. Cavity wall lesion frequencies were also evaluated. Comparisons were made between groups (ANOVA, DMR). Results: Primary surface lesion depth was reduced significantly (P< 0.05) with Alloybond-amalgams (135 ± 14 μm) when compared with Copalite-amalgams (184 ± 21 μm). Cavity wall lesion frequency was decreased (P< 0.05) significantly with Alloybond-amalgams (57{\%}) compared with Copalite-amalgams (89{\%}). The beneficial effect of the fluoride-releasing amalgam bonding agent was not limited to the cavosurface enamel. The caries susceptibility of enamel surfaces adjacent to amalgams with the fluoride-releasing bonding agent was decreased considerably. The incorporation of the amalgam-bonding resin with fluoride-releasing capabilities provided greater protection against a constant cariogenic attack over that for a conventional amalgam restoration.",
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AB - Purpose: To evaluate the effects of a fluoride-releasing resin designed for amalgam bonding on secondary caries formation in primary teeth restored with amalgams. Materials and Methods: Primary teeth with caries-free buccal and lingual surfaces were selected and underwent a fluoride-free prophylaxis. Cavity preparations were performed in the buccal and lingual smooth surfaces of 20 primary teeth. A fluoride-releasing dimethacrylate resin bonding agent (Alloybond) was placed prior to amalgam restoration (Dispersalloy) of the cavity preparations in 10 teeth. Amalgam restorations placed in 10 teeth following copal cavity varnish (Copalite) served as controls. The teeth were thermocycled in synthetic saliva (500 cycles, 5°-50°C), and then coated with an acid-resistant coating, leaving a Imm rim of sound enamel surrounding the restorations. Artificial secondary caries were created (2.2 mM calcium, 2.2 mM phosphate, 50 mM acetic acid, 0.5 ppm fluoride, pH 3.90). Following lesion formation, longitudinal sections (five per tooth) were prepared for polarized light evaluation. Mean depths for the primary surface lesions were determined using a computer-interfaced digitized tablet. Cavity wall lesion frequencies were also evaluated. Comparisons were made between groups (ANOVA, DMR). Results: Primary surface lesion depth was reduced significantly (P< 0.05) with Alloybond-amalgams (135 ± 14 μm) when compared with Copalite-amalgams (184 ± 21 μm). Cavity wall lesion frequency was decreased (P< 0.05) significantly with Alloybond-amalgams (57%) compared with Copalite-amalgams (89%). The beneficial effect of the fluoride-releasing amalgam bonding agent was not limited to the cavosurface enamel. The caries susceptibility of enamel surfaces adjacent to amalgams with the fluoride-releasing bonding agent was decreased considerably. The incorporation of the amalgam-bonding resin with fluoride-releasing capabilities provided greater protection against a constant cariogenic attack over that for a conventional amalgam restoration.

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