Effect of ozone pretreatment on the microleakage of pit and fissure sealants.
J Clin Pediatr Dent
; 35(2): 187-90, 2010.
Article
en En
| MEDLINE
| ID: mdl-21417122
ABSTRACT
OBJECTIVE:
This study investigated the effect of ozone pretreatment on the microleakage and marginal integrity of pit and fissure sealants placed with or without a self-etch 6th generation adhesive. STUDYDESIGN:
Freshly-extracted, human third molars were randomly assigned into two main groups (n = 48) Group A Fissures were pretreated with ozone; Group B Fissures were left untreated. The teeth were further randomly divided into two subgroups (n = 24/each) so that half of teeth were sealed with a conventional fissure sealant (Fissurit F, Voco, Germany), while the remaining half received the same sealant bonded with a self-etch adhesive (Clearfil Protect Bond, Kuraray, Japan). Following thermal cycling (1000X), the specimens were subjected to dye penetration within 0.5% basic fuchsin for 24h. The extent of dye penetration was measured by image analysis. Kruskal Wallis and Mann-Whitney U tests were used for statistical analysis of the data (p = 0.05). Two randomly-selected sections from each group were observed under SEMRESULTS:
In all groups, ozone pretreatment significantly reduced the extent of microleakage (p < 0.001). SEM investigation demonstrated better adaptation of the sealants in ozone-pretreated groups. Clearfil Protect Bond did not improve the marginal seal of Fissurit F (p > 0.05).CONCLUSION:
Ozone pretreatment favorably affected the marginal sealing ability of the tested fissure sealants.
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Banco de datos:
MEDLINE
Asunto principal:
Ozono
/
Selladores de Fosas y Fisuras
/
Oxidantes
/
Filtración Dental
Tipo de estudio:
Clinical_trials
Límite:
Humans
Idioma:
En
Año:
2010
Tipo del documento:
Article