Papain-based gel for biochemical caries removal: influence on microtensile bond strength to dentin
Braz. oral res
;
22(4): 364-370, 2008. ilus, tab
Article
Dans Anglais
| LILACS
| ID: lil-502192
ABSTRACT
This study investigated the influence of a papain-based gel(Papacárie) for chemo-mechanical caries removal on bond strength todentin. Human molars were assigned to the following groups Group 1sound teeth were flattened to expose dentin; Group 2 after flattening ofsurfaces, the papain-based gel was applied on the sound dentin; Group3 overlying enamel from carious teeth was removed and mechanical excavationof dentin was conducted; Group 4 chemo-mechanical excavationof carious dentin was conducted using the papain-based gel. ThePrime&Bond NT or Clearfil SE Bond adhesive systems were used forrestorative procedures. A microtensile bond strength test was performed,and the modes of failure were determined under SEM. The data weresubmitted to two-way ANOVA and Tukeys test (p ≤ 0.05). No significantdifferences were observed between the sound dentin groups. Forboth excavation methods, Clearfil presented a significantly higher bondstrength than Prime&Bond NT. Also, for Clearfil, the mechanically excavatedsamples disclosed a significantly higher bond strength than thechemo-mechanically ones. For Prime&Bond NT, no significant differenceswere detected between the excavation methods. Predominance ofmixed failures for the sound substrate and of adhesive failures for thecarious dentin one was detected. The bond strength to carious dentinof the self-etching system was negatively affected by chemo-mechanicalexcavation using the papain-based gel.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Papaïne
/
Collage dentaire
/
Agents de collage dentinaire
/
Caries dentaires
/
Préparation de cavité dentaire
/
Dentine
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Braz. oral res
Thème du journal:
Dentisterie
Année:
2008
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Federal University of Pelotas/BR
/
State University of Campinas/BR
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