Apical seal of root canals with gutta-percha points with calcium hydroxide.
The objective of this research was to determine if gutta-percha points with calcium hydroxide [Ca(OH)2] improve the apical seal after root canal filling and if the master point does it alone. Human single recently extracted teeth were biomechanically prepared and the root canals filled by the lateral condensation technique with ZOE and gutta-percha points, with or without calcium hydroxide. The teeth were placed into a 2% methylene blue solution in a vacuum environment for 24 h after which they were processed for stereomicroscope evaluation. Better results were observed with the teeth filled with gutta-percha points with calcium hydroxide (p=0.01). We conclude that these new points make a better apical seal and that these results can also be obtained with the calcium hydroxide master point associated with regular ones (p=0.05).
Department of Restorative Dentistry, Faculty of Dentistry of Araçatuba, UNESP, Araçatuba, SP, Brazil. rholland@foa.unesp.br
Roberto
R
Holland
Sueli Satomi
SS
Murata
Henrian Gonzaga
HG
Barbosa
Osvaldo
O
Garlipp
Valdir
V
de Souza
Eloi
E
Dezan Junior
D002126:Calcium Hydroxide / Q000737:chemistry*; D002626:Chemistry, Pharmaceutical; D004396:Coloring Agents; D001840:Dental Bonding; D003763:Dental Leakage / Q000145:classification; D006171:Gutta-Percha / Q000737:chemistry*; D006801:Humans; D008422:Materials Testing; D008751:Methylene Blue; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012389:Root Canal Obturation / Q000379:methods; D018915:Root Canal Preparation / Q000379:methods; D013499:Surface Properties; D013997:Time Factors; D019227:Tooth Apex / Q000648:ultrastructure; D014618:Vacuum; D015035:Zinc Oxide-Eugenol Cement / Q000737:chemistry
D004396:Coloring Agents; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement; D006171:Gutta-Percha; D002126:Calcium Hydroxide; D008751:Methylene Blue