title: In vitro apical leakage of system B compared with other filling techniques.
abstract: A fluid filtration system was used to compare the apical microleakage of roots filled with the system B (Analytic Technology), single-cone technique, lateral condensation, vertical condensation, and Thermafil (Caulk-Dentsply). After preparation of the canal system with a Profile (Caulk-Dentsply) five groups of 10 single-rooted teeth were randomly filled according to 1 of the 5 techniques. Phosphate-buffered saline was forced under a 15 cm H2O pressure, through the apex, toward the coronal part of the root. The filtration rate in L s(-1) Kpa(-1) was recorded 24 h after filling and after 1-month storage in phosphate-buffered saline. The 24 h results showed that the single cone technique provided the highest leakage (p = 0.001). At 1-month system B, Thermafil and vertical condensation had less leakage than the two other techniques (p = 0.0001): lateral condensation produced moderate apical leakage, whereas the single cone technique showed the highest leakage. Regardless of the technique the apical leakage increased after 1-month storage (p = 0.001 or p = 0.0001, depending on the technique).
authors.affiliation: Unité IMEB, Faculté d'Odontologie, Marseille, France.
authors.forename: L
authors.initials: L
authors.lastname: Pommel
authors.forename: J
authors.initials: J
authors.lastname: Camps
mesh_terms: D000704:Analysis of Variance; D002021:Buffers; D001840:Dental Bonding; D003763:Dental Leakage / Q000145:classification*; D006171:Gutta-Percha / Q000737:chemistry / Q000627:therapeutic use*; D006801:Humans; D008422:Materials Testing; D010710:Phosphates; D011312:Pressure; D012387:Root Canal Filling Materials / Q000737:chemistry / Q000627:therapeutic use*; D012389:Root Canal Obturation / Q000379:methods*; D018915:Root Canal Preparation / Q000295:instrumentation; D012965:Sodium Chloride; D013223:Statistics as Topic; D013997:Time Factors; D019227:Tooth Apex
chemical_list: D002021:Buffers; D010710:Phosphates; D012387:Root Canal Filling Materials; D012965:Sodium Chloride; D006171:Gutta-Percha