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Effects of a fluoride-releasing fissure sealant on artificial enamel caries.
Am J Dent. 1990 Apr; 3(2):75-8.AJ

Abstract

This study examined the effect of a fluoride-releasing fissure sealant upon enamel demineralization in an artificial-caries system. Twenty extracted human molars were randomly assigned to two treatment groups consisting of (1) conventional fissure sealant and (2) fluoride-releasing sealant. Specimens were acid-etched, rinsed, dried, sealant applied, and photocured for 20 seconds. Teeth were thermocycled 500x between 5 degrees C and 55 degrees C using 1 minute dwell times. Acid-resistant varnish was placed on the specimens to within 1 mm of the sealant and the teeth were subjected to an artificial-caries challenge at pH 4.2 for 62 hours. Teeth were then sectioned and the thin-sections photographed using a polarizing-light microscope. Areas of the artificial-caries lesions and their depths were measured using a sonic-digitizing pad. Mean lesion depths (in arbitrary units from the digitizing pads) were 4.17 +/- 0.95 for Group 1 and 1.22 +/- 0.61 for Group 2. Mean areas were 17.26 +/- 7.32 for Group 1 and 3.12 +/- 2.59 for Group 2. Students' t-tests indicated statistically significant differences (P less than 0.001) between groups for both measures. This artificial-caries study indicates that a fluoride-releasing fissure sealant substantially reduces the amount of enamel demineralization adjacent to the material.

Authors+Show Affiliations

University of Iowa, Iowa City.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

2076228

Citation

Jensen, M E., et al. "Effects of a Fluoride-releasing Fissure Sealant On Artificial Enamel Caries." American Journal of Dentistry, vol. 3, no. 2, 1990, pp. 75-8.
Jensen ME, Wefel JS, Triolo PT, et al. Effects of a fluoride-releasing fissure sealant on artificial enamel caries. Am J Dent. 1990;3(2):75-8.
Jensen, M. E., Wefel, J. S., Triolo, P. T., & Hammesfahr, P. D. (1990). Effects of a fluoride-releasing fissure sealant on artificial enamel caries. American Journal of Dentistry, 3(2), 75-8.
Jensen ME, et al. Effects of a Fluoride-releasing Fissure Sealant On Artificial Enamel Caries. Am J Dent. 1990;3(2):75-8. PubMed PMID: 2076228.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of a fluoride-releasing fissure sealant on artificial enamel caries. AU - Jensen,M E, AU - Wefel,J S, AU - Triolo,P T, AU - Hammesfahr,P D, PY - 1990/4/1/pubmed PY - 1990/4/1/medline PY - 1990/4/1/entrez SP - 75 EP - 8 JF - American journal of dentistry JO - Am J Dent VL - 3 IS - 2 N2 - This study examined the effect of a fluoride-releasing fissure sealant upon enamel demineralization in an artificial-caries system. Twenty extracted human molars were randomly assigned to two treatment groups consisting of (1) conventional fissure sealant and (2) fluoride-releasing sealant. Specimens were acid-etched, rinsed, dried, sealant applied, and photocured for 20 seconds. Teeth were thermocycled 500x between 5 degrees C and 55 degrees C using 1 minute dwell times. Acid-resistant varnish was placed on the specimens to within 1 mm of the sealant and the teeth were subjected to an artificial-caries challenge at pH 4.2 for 62 hours. Teeth were then sectioned and the thin-sections photographed using a polarizing-light microscope. Areas of the artificial-caries lesions and their depths were measured using a sonic-digitizing pad. Mean lesion depths (in arbitrary units from the digitizing pads) were 4.17 +/- 0.95 for Group 1 and 1.22 +/- 0.61 for Group 2. Mean areas were 17.26 +/- 7.32 for Group 1 and 3.12 +/- 2.59 for Group 2. Students' t-tests indicated statistically significant differences (P less than 0.001) between groups for both measures. This artificial-caries study indicates that a fluoride-releasing fissure sealant substantially reduces the amount of enamel demineralization adjacent to the material. SN - 0894-8275 UR - https://www.unboundmedicine.com/medline/citation/2076228/Effects_of_a_fluoride_releasing_fissure_sealant_on_artificial_enamel_caries_ L2 - https://medlineplus.gov/toothdecay.html DB - PRIME DP - Unbound Medicine ER -
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