New fluoride MI Varnish as root canal sealer: An in vitro analysis of bacterial leakage.
OBJECTIVE
The aim of the present study was to evaluate and compare the sealing ability of root canal obturation after the application of fluoride varnish (MI Varnish) containing 5% sodium fluoride and casein phosphopeptide-amorphous calcium phosphate, fluoride varnish, and AH Plus and AH-Plus as root canal sealer by bacterial penetration test.


METHODS
Root canals of 65 single-rooted and single-canalled teeth were prepared. They were divided into three experimental groups (n = 15) and two control groups (n = 10). The root canal walls in Group I were coated with AH Plus, Group II were coated with AH Plus and fluoride varnish, and Group III were coated with fluoride varnish. All the teeth were obturated with gutta-percha using the lateral condensation technique. Enterococcus faecalis were used as test bacteria to determine the leakage during 100 days.


METHODS
The data were analyzed using log-rank test and Kaplan-Meier survival analysis.


RESULTS
Group III showed significantly less bacterial penetration as compared to Group I (P = 0.01) and Group II (P = 0.03). However, there was no statistical significance between Groups I and II (P = 0.672).


CONCLUSIONS
It can be concluded from the present study that fluoride varnish can be used as a root canal sealer. However, further in vitro and in vivo studies are required.
Department of Pedodontics and Preventive Dentistry, AME's Dental College and Hospital and Research Center, Raichur, Karnataka, India.
Dhanu G
DG
Rao
Department of Pedodontics and Preventive Dentistry, AME's Dental College and Hospital and Research Center, Raichur, Karnataka, India.
Malay Vishnuprasad
MV
Trivedi
Department of Pedodontics and Preventive Dentistry, AME's Dental College and Hospital and Research Center, Raichur, Karnataka, India.
Raghavendra
R
Havale
Department of Pedodontics and Preventive Dentistry, AME's Dental College and Hospital and Research Center, Raichur, Karnataka, India.
S P
SP
Shrutha
D002364:Caseins / Q000494:pharmacology; D003763:Dental Leakage / Q000517:prevention & control*; D003786:Dental Pulp Cavity / Q000187:drug effects / Q000382:microbiology; D013293:Enterococcus faecalis / Q000302:isolation & purification; D004853:Epoxy Resins / Q000494:pharmacology; D005460:Fluorides, Topical / Q000737:chemistry / Q000494:pharmacology*; D006171:Gutta-Percha; D006801:Humans; D053208:Kaplan-Meier Estimate; D012387:Root Canal Filling Materials / Q000494:pharmacology*; D012389:Root Canal Obturation / Q000379:methods*; D018915:Root Canal Preparation / Q000379:methods; D012969:Sodium Fluoride / Q000494:pharmacology; D013997:Time Factors; D014070:Tooth; D015035:Zinc Oxide-Eugenol Cement / Q000494:pharmacology*
D002364:Caseins; D004853:Epoxy Resins; D005460:Fluorides, Topical; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement; C112894:canals sealer; C447032:casein phosphopeptide-amorphous calcium phosphate nanocomplex; C534916:epoxy resin-based root canal sealer; D012969:Sodium Fluoride; D006171:Gutta-Percha