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Penetration ability and microleakage of a fissure sealant applied on artificial and natural enamel fissure caries.
J Dent. 2007 Jan; 35(1):59-67.JD

Abstract

OBJECTIVES AND METHODS

This study investigated the sealing ability of a current available unfilled fissure sealant applied over sound (n=80), artificially created (n=80) and naturally carious fissures (n=80) under different humidity conditions (90+/-2 and 45+/-2% relative humidity) and etching times (40 and 60s). All samples were submitted to 5000 thermal cycles and examined by light microscopy after sectioning. Microleakage, penetration ability, fissure type, fissure entrance angle, sealant occlusal length, caries location and caries depth were assessed.

RESULTS

The significantly longer sealant occlusal length and larger entrance angle exhibited by shallow fissures, contributed to their higher microleakage and smaller amounts of unfilled areas compared to deep fissures. Sealant microleakage was significantly influenced by the condition of the enamel (sound, artificial and natural caries) and the caries location in the fissures, but not by enamel caries depth (D1 and D2), etching time, or humidity condition. Natural caries exhibited significantly higher microleakage than sound or artificially created carious fissures.

CONCLUSIONS

Based on the results of this study, it can be concluded that location of caries in the fissure rather than its depth should be taken into account when applying a fissure sealant. When the borders of the fissure sealant are on carious enamel, a significantly higher microleakage must be expected. The artificial caries model was not a suitable method to assess the behavior of natural fissure caries.

Authors+Show Affiliations

Department of Operative, Preventive and Pediatric Dentistry, School of Dental Medicine, University of Bern, Switzerland. paulaceliberti@hotmail.comNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

16777313

Citation

Celiberti, Paula, and Adrian Lussi. "Penetration Ability and Microleakage of a Fissure Sealant Applied On Artificial and Natural Enamel Fissure Caries." Journal of Dentistry, vol. 35, no. 1, 2007, pp. 59-67.
Celiberti P, Lussi A. Penetration ability and microleakage of a fissure sealant applied on artificial and natural enamel fissure caries. J Dent. 2007;35(1):59-67.
Celiberti, P., & Lussi, A. (2007). Penetration ability and microleakage of a fissure sealant applied on artificial and natural enamel fissure caries. Journal of Dentistry, 35(1), 59-67.
Celiberti P, Lussi A. Penetration Ability and Microleakage of a Fissure Sealant Applied On Artificial and Natural Enamel Fissure Caries. J Dent. 2007;35(1):59-67. PubMed PMID: 16777313.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Penetration ability and microleakage of a fissure sealant applied on artificial and natural enamel fissure caries. AU - Celiberti,Paula, AU - Lussi,Adrian, Y1 - 2006/06/14/ PY - 2005/10/05/received PY - 2006/04/10/revised PY - 2006/04/18/accepted PY - 2006/6/17/pubmed PY - 2007/7/31/medline PY - 2006/6/17/entrez SP - 59 EP - 67 JF - Journal of dentistry JO - J Dent VL - 35 IS - 1 N2 - OBJECTIVES AND METHODS: This study investigated the sealing ability of a current available unfilled fissure sealant applied over sound (n=80), artificially created (n=80) and naturally carious fissures (n=80) under different humidity conditions (90+/-2 and 45+/-2% relative humidity) and etching times (40 and 60s). All samples were submitted to 5000 thermal cycles and examined by light microscopy after sectioning. Microleakage, penetration ability, fissure type, fissure entrance angle, sealant occlusal length, caries location and caries depth were assessed. RESULTS: The significantly longer sealant occlusal length and larger entrance angle exhibited by shallow fissures, contributed to their higher microleakage and smaller amounts of unfilled areas compared to deep fissures. Sealant microleakage was significantly influenced by the condition of the enamel (sound, artificial and natural caries) and the caries location in the fissures, but not by enamel caries depth (D1 and D2), etching time, or humidity condition. Natural caries exhibited significantly higher microleakage than sound or artificially created carious fissures. CONCLUSIONS: Based on the results of this study, it can be concluded that location of caries in the fissure rather than its depth should be taken into account when applying a fissure sealant. When the borders of the fissure sealant are on carious enamel, a significantly higher microleakage must be expected. The artificial caries model was not a suitable method to assess the behavior of natural fissure caries. SN - 0300-5712 UR - https://www.unboundmedicine.com/medline/citation/16777313/Penetration_ability_and_microleakage_of_a_fissure_sealant_applied_on_artificial_and_natural_enamel_fissure_caries_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0300-5712(06)00094-7 DB - PRIME DP - Unbound Medicine ER -