Résumé
A case of dentigerous cyst associated with upper right lateral incisor that had resulted in displacement of the canine, inverted impaction of both the premolars and dilaceration of apical 1/3 of central incisor is reported here.
Sujets)
Prémolaire/imagerie diagnostique , Enfant , Canine/imagerie diagnostique , Kyste dentigère/complications , Humains , Incisive/malformations , Mâle , Maladies du maxillaire supérieur/complications , Racine dentaire/malformations , Dent enclavée/étiologieRésumé
The present study was performed to compare the amount of in vitro fluoride uptake by enamel and dentin from fluoridated bonding agent with non-fluoridated composite (Group I), non-fluoridated bonding agent with fluoridated composite (Group II) and fluoridated bonding agent with fluoridated composite resin (Group III). Sixty extracted premolars were selected and divided into three groups of 20 teeth each. Restorative materials were applied according to manufacturer's instructions into standard windows created in the teeth, cured and placed in de-ionised water for three months. The fluoride content of successive acid etch biopsy was determined by specific ion-electrode analysis. Although significant amount of fluoride uptake occurred in all the test groups, fluoride uptake was found to be highly significant in dentin when compared to enamel in Group, I, II and III (P<0.001). The fluoride uptake was greater by both enamel and dentin in Group III ie fluoridated bonding agent with fluoridated composite resin.
Sujets)
Mordançage à l'acide , Résines acryliques/composition chimique , Analyse de variance , Cariostatiques/composition chimique , Résines composites/composition chimique , Émail dentaire/métabolisme , Dentine/métabolisme , Agents de collage dentinaire/composition chimique , Fluorures/composition chimique , Humains , Électrodes sélectives , Méthacrylates/composition chimique , Poly(acides méthacryliques)/composition chimique , Polyuréthanes/composition chimique , Statistique non paramétrique , Facteurs tempsRésumé
A nasopalatine duct cyst is that which occurs in or near the incisive canal. A case of nasopalatine duct cyst in a 14-year-old male is reported here.