Comparison of sealer penetration using the EndoVac irrigation system and conventional needle root canal irrigation.
BACKGROUND
The aim of this study was to compare the effect of the EndoVac irrigation system (SybronEndo, Orange, CA) and conventional endodontic needle irrigation on sealer penetration into dentinal tubules.


METHODS
Forty single-rooted, recently extracted human maxillary central incisors were randomly divided into 2 groups according to the irrigation technique used: conventional endodontic needle irrigation and EndoVac irrigation. All teeth were instrumented using the ProFile rotary system (Dentsply Maillefer, Ballaigues, Switzerland) and obturated with gutta-percha and AH Plus sealer (Dentsply DeTrey, Konstanz, Germany) labeled with fluorescent dye. Transverse sections at 1, 3, and 5 mm from the root apex were examined using confocal laser scanning microscopy. The total percentage and maximum depth of sealer penetration were then measured.


RESULTS
Mann-Whitney test results showed that EndoVac irrigation resulted in a significantly higher percentage of sealer penetration than conventional irrigation at both the 1- and 3-mm levels (P < .05). However, no difference was found at the 5-mm level. The 5-mm sections in each group showed a significantly higher percentage and maximum depth of sealer penetration than did the 1- and 3-mm sections (P < .05).


CONCLUSIONS
The EndoVac irrigation system significantly improved the sealer penetration at the 1- to 3-mm level over that of conventional endodontic needle irrigation.
Department of Endodontics, Faculty of Dentistry, Bezmialem Vakıf University, Istanbul, Turkey. Electronic address: aysunkara80@gmail.com.
Aysun
A
Kara Tuncer
Department of Electrical and Electronic Engineering, Faculty of Engineering, Fatih University, Istanbul, Turkey.
Bayram
B
Unal
D003786:Dental Pulp Cavity / Q000648:ultrastructure*; D003804:Dentin / Q000648:ultrastructure*; D004492:Edetic Acid / Q000008:administration & dosage; D004853:Epoxy Resins / Q000737:chemistry; D005456:Fluorescent Dyes; D006171:Gutta-Percha / Q000737:chemistry; D006801:Humans; D007180:Incisor / Q000648:ultrastructure; D018613:Microscopy, Confocal; D009339:Needles; D011897:Random Allocation; D012387:Root Canal Filling Materials / Q000737:chemistry*; D012388:Root Canal Irrigants / Q000008:administration & dosage; D018915:Root Canal Preparation / Q000295:instrumentation; D012973:Sodium Hypochlorite / Q000008:administration & dosage; D013499:Surface Properties; D007507:Therapeutic Irrigation / Q000295:instrumentation* / Q000379:methods; D019227:Tooth Apex / Q000648:ultrastructure; D014618:Vacuum
D004853:Epoxy Resins; D005456:Fluorescent Dyes; D012387:Root Canal Filling Materials; D012388:Root Canal Irrigants; C534916:epoxy resin-based root canal sealer; D006171:Gutta-Percha; D004492:Edetic Acid; D012973:Sodium Hypochlorite
Confocal laser scanning microscopy; EndoVac; irrigation; sealer penetration