Quality of canal obturation assessed by micro-computed tomography: Influence of filling technique and post placement in canals shaped with Reciproc

Abstract Aim To assess by micro-computed tomography (μCT) the quality of fillings in canals shaped with Reciproc considering the effects of filling technique and post insertion. Methodology The canals of 60 single-rooted teeth were instrumented with Reciproc R40 and randomly assigned to four groups (n = 15): G1, single point; G2, as G1 + DT Light Post; G3, continuous wave of condensation; G4, as G3 + DT Light Post. The filling voids were quantified by μCT. Data were statistically analysed by non-parametric test (p Results Filling greater than 96% of the entire canal volume was observed in all groups. The volume of internal voids was greater in G3 than in G4 (p Conclusions Our findings support the use of simplified techniques of canal shaping, filling with matching taper points and post cementation

Nuovi e vecchi concetti in Endodonzia: il sistema Reciproc

RiassuntoObiettiviValutare il sigillo e la qualità dell'otturazione in canali sagomati con Reciproc in relazione a tecnica d'otturazione e inserimento del perno.Materiali e metodiSono stati analizzati con fluid filtration e microtomografia 44 denti estrattitrattati con Reciproc R40 e distinti in 4 gruppi test (n=10): G1, cono singolo; G2, come G1+perno; G3, System B; G4, come G3+perno (test parametrici e non, p<0,05).RisultatiIn tutti i gruppi le percentuali di riempimento canalare erano elevate. In G3 erano maggiori i vuoti interni vs. G4 (p<0,05) e l'infiltrazione finale vs. G1, G2 e G4 (p<0,05).ConclusioniLe analisi eseguite suffragano l'utilizzo di tecniche endodontiche semplificate e integrate di strumentazione, otturazione e ricostruzione.SummaryAimTo evaluate the apical seal and the quality of root filling in canals instrumented with Reciproc in relation to canal filling technique and post insertion.MethodologyFluid filtration test and microtomographic scan were performed on 44 extracted teeth instrumented with Reciproc R40 and divided into four test groups (n=10): G1, single cone; G2, as G1+post; G3, System B; G4, as G3+post (parametric and non-parametric tests, p<0.05).ResultsHigh percentages of canal filling were registered in all groups. In G3 the volume of internal voids and microleakage were greater than G4 (p<0.05) and G1, G2 e G4 (p<0.05), respectively.ConclusionsOur results support the use of simplified integrated endodontic techniques of instrumentation, filling and reconstruction