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Performance of a conventional sealant and a flowable composite on minimally invasive prepared fissures.
Oper Dent 2006 Sep-Oct; 31(5):543-50OD

Abstract

Three different fissure preparation procedures were tested and compared to the non-invasive approach using a conventional unfilled sealant and a flowable composite. Eighty permanent molars were selected and divided into 4 groups of 20 teeth each. All the teeth were split into 2 halves, and the exposed fissures were photographed under a microscope (35x) before and after being prepared using the following methods: (I) Er:YAG laser (KEY Laser, KaVo) 600 mJ pulse energy, 6 Hz; (II) diamond bur; (III) Er: YAG laser (KEY Laser, KaVo) 200 mJ pulse energy, 4 Hz; (IV) Control group: Powder jet cleaner (Prophyflex, KaVo, Germany). The pre-and postimages were superimposed in order to evaluate the amount of hard tissue removed. Ten teeth in each group were then acid etched and sealed with an unfilled sealant (Delton opaque, Dentsply), while the remaining 10 teeth were acid etched, primed and bonded (Prime & Bond NT, Dentsply) and sealed with a flowable composite (X-flow, DeTrey, Dentsply). Material penetration and microleakage were evaluated after thermocycling (5000 cycles) and staining with methylene blue 5%. ANOVA and Mann-Whitney tests were applied for statistical analysis. The laser 600 mJ and bur eliminated the greatest amount of hard tissue. The control teeth presented the least microleakage when sealed with Delton or X-flow. A correlation between material penetration and microleakage could not be statistically confirmed. Mechanical preparation prior to fissure sealing did not enhance the final performance of the sealant.

Authors+Show Affiliations

Department of Pediatric Dentistry and Histology, School of Dental Medicine, University of Bern, Switzerland. pao.francescut@zmk.unibe.chNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

17024941

Citation

Francescut, Paola, and Adrian Lussi. "Performance of a Conventional Sealant and a Flowable Composite On Minimally Invasive Prepared Fissures." Operative Dentistry, vol. 31, no. 5, 2006, pp. 543-50.
Francescut P, Lussi A. Performance of a conventional sealant and a flowable composite on minimally invasive prepared fissures. Oper Dent. 2006;31(5):543-50.
Francescut, P., & Lussi, A. (2006). Performance of a conventional sealant and a flowable composite on minimally invasive prepared fissures. Operative Dentistry, 31(5), pp. 543-50.
Francescut P, Lussi A. Performance of a Conventional Sealant and a Flowable Composite On Minimally Invasive Prepared Fissures. Oper Dent. 2006;31(5):543-50. PubMed PMID: 17024941.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Performance of a conventional sealant and a flowable composite on minimally invasive prepared fissures. AU - Francescut,Paola, AU - Lussi,Adrian, PY - 2006/10/10/pubmed PY - 2006/12/9/medline PY - 2006/10/10/entrez SP - 543 EP - 50 JF - Operative dentistry JO - Oper Dent VL - 31 IS - 5 N2 - Three different fissure preparation procedures were tested and compared to the non-invasive approach using a conventional unfilled sealant and a flowable composite. Eighty permanent molars were selected and divided into 4 groups of 20 teeth each. All the teeth were split into 2 halves, and the exposed fissures were photographed under a microscope (35x) before and after being prepared using the following methods: (I) Er:YAG laser (KEY Laser, KaVo) 600 mJ pulse energy, 6 Hz; (II) diamond bur; (III) Er: YAG laser (KEY Laser, KaVo) 200 mJ pulse energy, 4 Hz; (IV) Control group: Powder jet cleaner (Prophyflex, KaVo, Germany). The pre-and postimages were superimposed in order to evaluate the amount of hard tissue removed. Ten teeth in each group were then acid etched and sealed with an unfilled sealant (Delton opaque, Dentsply), while the remaining 10 teeth were acid etched, primed and bonded (Prime & Bond NT, Dentsply) and sealed with a flowable composite (X-flow, DeTrey, Dentsply). Material penetration and microleakage were evaluated after thermocycling (5000 cycles) and staining with methylene blue 5%. ANOVA and Mann-Whitney tests were applied for statistical analysis. The laser 600 mJ and bur eliminated the greatest amount of hard tissue. The control teeth presented the least microleakage when sealed with Delton or X-flow. A correlation between material penetration and microleakage could not be statistically confirmed. Mechanical preparation prior to fissure sealing did not enhance the final performance of the sealant. SN - 0361-7734 UR - https://www.unboundmedicine.com/medline/citation/17024941/Performance_of_a_conventional_sealant_and_a_flowable_composite_on_minimally_invasive_prepared_fissures_ L2 - http://www.jopdentonline.org/doi/10.2341/05-91?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -