Evaluation of different types of enamel conditioning before application of a fissure sealant

Ciucchi, Philip Ruwan; Neuhaus, Klaus; Emerich, Marta; Peutzfeldt, Anne; Lussi, Adrian (2015). Evaluation of different types of enamel conditioning before application of a fissure sealant. Lasers in medical science, 30(1), pp. 1-9. Springer 10.1007/s10103-013-1333-2

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The aim of the study was to compare fissure sealant quality after mechanical conditioning of erbium-doped yttrium aluminium garnet (Er:YAG) laser or air abrasion prior to chemical conditioning of phosphoric acid etching or of a self-etch adhesive. Twenty-five permanent molars were initially divided into three groups: control group (n = 5), phosphoric acid etching; test group 1 (n = 10), air abrasion; and test group 2, (n = 10) Er:YAG laser. After mechanical conditioning, the test group teeth were sectioned buccolingually and the occlusal surface of one half tooth (equal to one sample) was acid etched, while a self-etch adhesive was applied on the other half. The fissure system of each sample was sealed, thermo-cycled and immersed in 5% methylene dye for 24 h. Each sample was sectioned buccolingually, and one slice was analysed microscopically. Using specialized software microleakage, unfilled margin, sealant failure and unfilled area proportions were calculated. A nonparametric ANOVA model was applied to compare the Er:YAG treatment with that of air abrasion and the self-etch adhesive with phosphoric acid (α = 0.05). Test groups were compared to the control group using Wilcoxon rank sum tests (α = 0.05). The control group displayed significantly lower microleakage but higher unfilled area proportions than the Er:YAG laser + self-etch adhesive group and displayed significantly higher unfilled margin and unfilled area proportions than the air-abrasion + self-etch adhesive group. There was no statistically significant difference in the quality of sealants applied in fissures treated with either Er:YAG laser or air abrasion prior to phosphoric acid etching, nor in the quality of sealants applied in fissures treated with either self-etch adhesive or phosphoric acid following Er:YAG or air-abrasion treatment.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Preventive, Restorative and Pediatric Dentistry

UniBE Contributor:

Ciucchi, Philip Ruwan; Neuhaus, Klaus; Peutzfeldt, Anne and Lussi, Adrian

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0268-8921

Publisher:

Springer

Language:

English

Submitter:

Eveline Carmen Schuler

Date Deposited:

29 Mar 2016 08:34

Last Modified:

25 Jan 2017 12:15

Publisher DOI:

10.1007/s10103-013-1333-2

PubMed ID:

23636296

Uncontrolled Keywords:

Fissure sealants, Air abrasion, Er:YAG laser, Self-etch adhesive, Phosphoric acid

BORIS DOI:

10.7892/boris.77063

URI:

https://boris.unibe.ch/id/eprint/77063

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