Case report: "C-SHAPED MANAGEMENT with THERMAFIL SYSTEM£

RiassuntoObiettiviL’anatomia del secondo molare mandibolare è altamente variabile. I canali C-Shaped rappresentano una sfida per il clinico nella sagomatura, detersione, ma soprattutto durante la fase di otturazione. Lo scopo del seguente lavoro è illustrare la versatilità del sistema Thermafil in questo tipo di anatomie canalari.Materiali e MetodiViene presentato un case series di 3 secondi molari mandibolari C-Shaped destinati altrattamento endodontico. Glide path e sagomatura sono stati eseguiti con PathFile e ProTaper fino ad F2. EDTA 10% e NaOCl 5% sono stati usati come irriganti. L’otturazione è stata eseguita con sistema Thermafil.Risultati e ConclusioniI controlli radiografici mostrano un’adeguata distribuzione della guttaperca ed un omogeneo sigillo apicale. A due anni i casi risultano asintomatici e si evidenzia la guarigione periradicolare. La tecnica presentata sembra facilitare la gestione della complessa anatomia canalare C-Shape.SummaryAimThe anatomy of mandibular second molar is highly variable. C-Shaped canals rapresent a challenge for the clinician in saping, cleaning, but mainly during obturation. The aim of this study is to illustrate the versatility of Thermafil System in such complex anatomy.Material and MethodsA case series of 3 C-shaped mandibular second scheduled for root canal treatment is presented. Glide path and shaping were performed with PathFile e ProTaper up to F2. EDTA 10% and NaOCl 5% solutions were utilised as irrigants. Obturation was accomplished with Thermafil system.Results and ConclusionRadiographic imaging showed an adequate distribution of thermoplasticised guttapercha with homogeneous apical seal. At 2 years follow up all cases appeared symptoms-free and showed periradicular health. The present technique appeared user-friendly and reliable in managing complex C-Shaped anatomy

Evaluation of the root canal tridimensional filling with warm vertical condensation, carrier-based technique and single cone with bioceramic sealer: A micro-CT study

Aim: To compare the quality of the tridimensional (3D) filling and the presence of radiographic translucencies after root canal obturation with three different techniques: warm vertical condensation, carrier-based and single cone with bioceramic sealer. Methodology: Thirty single-rooted human teeth extracted for periodontal reasons were selected. Glide path was performed with ProGlider and shaping with ProTaper Next (PTN) X1, X2 and X3 up to working length (WL). The specimens were randomly divided into three groups (N=10) for the final 3D filling step: Buchanan's continuous wave of condensation (Group 1, G1), Thermafil\uae (Group 2, G2) or TotalFill\uae BC Points\u2122 combined with TotalFill\uae BC Sealer (Group 3, G3). Micro-CT scans were performed after the obturation step and the slices were 3D reconstructed with standardized parameters. Afterwards, the filled area and the associated radiographic translucencies were computer- isolated, and their volumes were calculated. The statistical analysis was performed using one-way ANOVA and the post-hoc Student- Newmann-Keuls (P<0,05). Results: The mean percentage of translucency areas in the warm vertical condensation group was 1,23%, whereas in the carrier- based group was 4,22% and in the single cone with bioceramic sealer group was 10,44%. The differences between the groups were statistically significant (P=0,029). Conclusions: All the obturation techniques provided an adequate 3D root canal filling. However, the null hypothesis of a superimposable 3D filling quality between groups was refused. The single cone technique with bioceramic sealer represented a viable clinical alternative, although it seemed more operator-dependent than the others