Warm Vertical Condensation Research Articles

Laser-assisted Root Canal Filling Removal of Lower Incisors - A Micro-CT Study.

To compare the efficiency of root canal filling removal from oval-shaped root canals with high-energy Er:YAG laser and additional instrumentation with a rotary Ni-Ti XP-Endo Finisher R system. The in vitro study was accomplished on 12 freshly extracted single-rooted mandibular incisors with one straight oval-shaped root canal, shaped with XP-Endo Shaper 30/.04 and obturated by using the warm vertical condensation technique subjected to further endodontic orthograde retreatment. Group 1: the first retreatment was carried out using a high-energy Er:YAG laser (n = 12). Group 2: the additional retreatment of the same specimens was performed with the XP-Endo Finisher-R system (n = 12). The effectiveness of the retreatment techniques was evaluated by a threefold micro-CT examination. The amount of the remaining root canal filling material was analyzed by Mann-Whitney U test and Friedman tests. A significant decrease in the quantity of the root canal filling was found following the first and after the second retreatment, compared to the initial values in all examined sections (P < 0.001). Within groups, additional application of the Ni-Ti system resulted in no significant removal of the filling materials (P > 0.05). None of the systems resulted in complete root canal filling removal. Despite the improved results after the application of the supplementary retreatment protocol, none of the root canal walls were completely clean in the apical area. The high-energy Er:YAG laser and XP-Endo Finisher R rotary system can be successfully used in endodontic orthograde retreatment under relevant operating parameters.

Successful Root Canal Re-treatment of the Second Mandibular Premolar with type III of Vertucci Classification

Knowledge of the root canal system plays a significant role in avoiding the failure of root canal treatment. Premolar teeth may have several anatomical variations in their root canal system. A dentist must understand these root canal systems and their variation to conduct the appropriate treatment. The mandibular second premolar usually consists of a single root with a single root canal. The incidence of lower premolars with two or more root canals varied between 1.2% and 34%. This study aims to evaluate the success of root canal re-treatment of mandibular second premolars with type III Vertucci’s Classification. Case report: A 28-year-old woman visited our dental hospital with a pain sensation in her lower left premolar tooth. The subjective examination revealed that she had experienced pulp capping and root canal treatment last year. However, she felt pain and uncomfortable feeling on that treated tooth. A radiograph examination showed a radiopaque area from the crown edge to half of the root. The radiolucent area from the half tooth to the apical region showed root canal branching. The diagnosis for this tooth was previously treated teeth, asymptomatic apical periodontitis with type III of Vertucci’s Classification. Root Canal Treatment was done using crown down preparation technique and obturation with warm vertical condensation followed by class II composite resin composite as a temporary filling. Results showed that after three months of evaluation, the retreated-tooth condition kept showing good condition without any complaints, pain, or clinical abnormalities, suggesting it could function properly.

OBTURATION AND DIFFERENT OBTURATION TECHNIQUES- A REVIEW

The crucial stage of obturation completes the endodontics triad. Achieving a fluid tight seal and performing an obturation correctly and appropriately are critical to the outcome of endodontic treatment. Among the several obturation procedures available, selecting a specific technique depends on the anatomy of the root canal and attaining case-specific goals. Warm vertical compaction and lateral condensation are the two fundamental obturation techniques. Modern tools and methods have emerged, like those that use vibration and heat to cause the obturating material to condense and compact. These innovations have fundamentally changed the field of endodontics and increased the predictability of obturation success.

ProTaper universal retreatment retreatment potential in oval-shaped canals filled with different obturation techniques-A micro-computed tomography study.

The objective of this in vitro micro-computed tomography investigation is to assess the efficacy of the ProTaper Universal Retreatment System in retreating oval-shaped root canals filled with three obturation procedures. Thirty-six lower incisors with a single oval root canal were prepared using XP-Endo Shaper up to size 30/0.04, and allocated into three equal groups based on the filling technique: Group 1: Warm vertical condensation technique; Group 2: GuttaCore obturators; Group 3: Cold lateral condensation technique. All samples were further retreated using the ProTaper Universal Retreatment system. Micro-CT analysis was performed before and after the retreatment procedure. Statistical analysis was performed with a significance level of 0.05. Data analysis was conducted using the Kolmogorov-Smirnov and Kruskal-Wallis H tests. The best performance of the files was achieved when the removal of the filling in the entire canal was considered. However, this outcome was not statistically significant when compared with the other observed root canal levels. The retreatment procedure could not ensure thorough cleanliness of the canal walls from filling remnants, regardless of the obturation technique and observational level. The ProTaper Universal Retreatment system used for the removal of gutta-percha and sealer in oval-shaped root canals demonstrated equal effectiveness, regardless of the obturation technique used.

Retreatment Strategies for Cases Containing Calcium Silicate-Based Root Canal Sealers: A Comprehensive Review.

This review explores the field of retreatment strategies for cases filled with calcium silicate-based root canal sealers. Since the introduction of calcium silicate-based materials in dentistry, calcium silicate-based root canal sealers have become popular among dentists because of their biocompatibility, bioactivity, and sealing ability. Therefore, effective retreatment strategies are indispensable. This article aims to identify the challenges associated with the removal of calcium silicate-based sealers themselves and removal of gutta-percha with the sealers during retreatment, evaluate current techniques and materials, and provide future directions for research in this field. Regarding the strategies of removal of root canal sealers, calcium silicate-based sealers are still relatively new materials for clinicians compared with traditional sealers such as epoxy- or eugenol-based sealers. First, no clinically established solvents have been reported. Second, calcium silicate-based sealers are currently utilized by clinicians in either the cold sealer-based technique or the warm vertical condensation technique. Third, the setting process of calcium silicate-based sealers generates byproducts, primarily calcium hydroxide and secondarily hydroxyapatite, that could interact with dentine. Lastly, there is a lack of clinical studies evaluating the efficacy of retreatment protocols for teeth filled with calcium silicate-based sealers. Therefore, it is important to investigate the chemo-mechanical properties of calcium silicate-based sealers themselves and their reactions to solvents and/or mechanical instruments and identify the interfacial properties of calcium silicate-based sealers with respect to dentine and gutta-percha. In addition, researchers in the clinical field need to actively gather and report data on retreatments of teeth filled with calcium silicate-based sealers.

Impact of Access Cavity Design on Fracture Resistance of Endodontically Treated Maxillary First Premolar: In Vitro.

This study was designed to investigate the impact of access cavity designs on fracture resistance of endodontically treated maxillary first premolars. The study sample consisted of 72 intact maxillary first premolars, randomly divided into six groups (n = 12). A standardized proximal cavity preparation was prepared for all samples using standard bur. Groups I: control group with only standard proximal cavity and no endodontic access, group II: Truss access cavity, group III: Separated access to buccal and palatal canals without removal of dentine in between, group IV: Access to buccal and palatal canals with removal of dentine in between, group V: Traditional access cavity, group VI: Mesio-occlusal-distal cavity (MOD). For groups I and VI, only composite restoration was used to restore the proximal cavity, while for groups II- V, the access was prepared and endodontic treatment was performed on all teeth, then composite restoration was placed. The root canals were instrumented using nickel-titanium files, irrigated with sodium hypochlorite, and filled with AH plus sealer and gutta-percha using warm vertical condensation. All samples were then placed in an acrylic mold and underwent thermal aging for 10,000 cycles between 5 and 55°C. The samples were fixed in a universal testing machine with the long axis of the roots positioned at 20° to a load applied at a crosshead speed of 1 mm/min using a stainless steel semi-spherical indenter (Ø = 3 mm) until fracture occurred to determine the fracture resistance force in Newton. The normality test (Shapiro-Wilk) showed that data are normally distributed. Group II exhibited the highest mean fracture resistance, and group VI was the least likely to resist the fracture. No statistically significant differences between tested groups (p-value = 0.237). The MOD group showed a more unfavorable mode of fracture compared to other groups. No significant difference in fracture resistance between conservative and traditional access cavities. The missing marginal ridges, such as in MOD cavities played an important role in decreasing the fracture resistance of endodontically treated teeth.

Micro-CT determination of the porosity of two tricalcium silicate sealers applied using three obturation techniques.

Using X-ray micro-computed tomography (micro-CT), the aim of this study was to measure the porosity of two tricalcium silicate sealers (EndoSequence BC and NeoSealer Flo) applied using three obturation techniques (single-cone, warm-vertical, and cold-lateral) to six single-rooted human teeth. Six extracted, single-rooted human teeth were shaped with ProTaper Next rotary files and obturated with EndoSequence BC or NeoSealer Flo sealers and gutta-percha (GP) using one of the three techniques above. Micro-CT was used to map the full length of the canals. Deep learning cross-sectional segmentation was used to analyze image slices of the apical (0-2 mm) and coronal (14-16 mm from the apex) regions (n = 230-261 per tooth) for the areas of GP and sealer, as well as porosity. Median (%) with interquartile range of porosity were calculated , and the results were statistically analyzed with the Kruskal-Wallis test. In the apical region, EndoSequence BC had significantly fewer pores than NeoSealer Flo with the single-cone obturation (% median-interquartile range, IQR: 0.00-1.62) and warm-vertical condensation (5.57-10.32) techniques, whereas in the coronal region, NeoSealer Flo had significantly fewer pores than EndoSequence BC with these two techniques (0.39-5.02) and (0.10-0.19), respectively. There was no significant difference in porosity between the two sealers for the cold-lateral condensation technique in both the apical and coronal regions. For optimal obturation, the choice of technique and sealer is critical.

Evaluation of the efficacy of rotary and reciprocating systems for the removal of filling material for various root canal filling techniques.

This study aimed to evaluate the efficacy of various filling and retreatment techniques for oval-shaped root canals. Sixty distal roots of mandibular molar teeth were included in the study. The roots were prepared using the ProTaper Next (PTN) X4 rotary system and irrigation with 2.5% NaOCl. The roots were then divided into three groups and filled with Total Fill BC Sealer (FKG Dentaire) using three different techniques (n=20): single cone (SC), GuttaCore (GC), and warm vertical condensation (WVC). The retreatment procedure was performed using two different instrumentation techniques: Reciproc 50 (R50) and PTN X5 (n=10). To analyze the remaining filling material, the roots were divided buccolingually in two parts with the help of diamond separators, and photographs were taken at x16 magnification using a dental operating microscope (DOM). The ratio of the remaining filling materials was calculated using image analysis software and statistically evaluated using the Kruskal-Wallis test. None of the assessed retreatment procedures completely removed the filling materials from the root canals. For both instrumentation techniques, more root canal filling material remained in the WVC group (P<0.05). The GC filling technique had a higher cleaning percentage than the WVC and SC techniques in the coronal region. The R50 system was found to be superior to the PTN X5 system for retreatment, and the root canal fillings applied using the WVC technique were more difficult to remove than the fillings applied using the other techniques.

Prevalence of Teaching Apical Patency and Various Instrumentation and Obturation Techniques in United States Dental Schools: Two Decades Later

IntroductionMaintaining apical patency has been advocated to minimize canal transportation, ledge formation, and loss of working length, despite increasing debris extrusion. A previous study in 1997 by Cailleteau and Mullaney reported 50% of United States dental schools taught patency. This present study aimed to evaluate recent trends in endodontic education in United States dental schools, in relation to the prevalence of maintaining apical patency and examining the primary methods of working length determination, instrumentation, obturation, and temporization. MethodsA survey of 20 questions was distributed to 65 schools via e-mail and was available from July 2021 to September 2021. ResultsSeventy-three percent of the 46 responding schools reported that they teach patency, with 8% of this number reporting that they do so exclusively to endodontic residents. Notably, a significantly lower number of schools reported teaching patency exclusively to endodontic students compared with the Cailleteau and Mullaney study despite a significantly higher percentage of schools teaching patency overall. The most common method used to determine working length was an electronic apex locator at the 0.5 reading. Vortex Blue was the most commonly used file system used by both predoctoral and postdoctoral programs. Lateral condensation was the primary obturation technique taught in predoctoral programs, whereas warm vertical condensation was the primary obturation technique in postdoctoral programs. The study also found that 57% of schools reported using intraorifice barriers, and the most common temporary filling was glass ionomer. ConclusionsA greater portion of schools teaches patency compared with the previous study in 1997. The data collected in this survey may serve as a baseline for similar studies in the future regarding changes in endodontic education over time.

Perawatan saluran akar satu kali kunjungan dilanjutkan dengan restorasi endocrown

Introduction: Root canal treatment is a common procedure in dentistry. The main indications for root canal treatment are irreversible pulpitis and pulpal necrosis resulting from a carious process, fracture, or trauma to the tooth. The success of root canal treatment depends on various factors, one of which is post-endodontic restoration. Objective: This case report aims to demonstrate a one-visit root canal treatment followed by endocrown restoration. Case report: A 22-year-old male patient came with complaints of throbbing tooth pain in the lower right side since 1 week ago. Intra oral examination of tooth 46 showed a temporary filling on the occlusal surface. Radiographic findings showed that the crown had a radiopaque appearance reaching the pulp chamber, without periapical abnormalities. Root canal treatment was performed based on the diagnosis of irreversible pulpitis followed by endocrown restoration. Root canal treatment begins with mandibular block anesthesia and then inserts a rubber dam, opens the cavity, explores the root canal, and prepares the root canal. Biomechanical preparation was carried out using a single length technique, combined with 5.25% NaOCl irrigation, 17% EDTA, and 2% chlorhexidine. Root canal closure was performed in single visit, with the warm vertical condensation technique. The next restoration was carried out one week after root canal treatment, with an endocrown. A week later the patient came for control with no complaints. Conclusion: Root canal treatment in single visit followed by endocrown restoration was successfully carried out.

Endodontic Management of Mandibular Premolars with Root Canal Vertucci Type II and III Configuration: Two Case Reports

The location of all root canals (RCs) and their adequate preparation, disinfection, and obturation play an important role in successful endodontic treatment (ET). Furthermore, in addition to normal RC system morphology, the operator should also recognize their anatomical variations. This study presented two cases of mandibular premolars with RC configuration Vertucci type II and III after a clinical diagnosis of irreversible pulpitis. RC preparation in two cases was performed using the crown-down technique. After following the standard irrigation protocol, the RCs were obturated using the warm vertical condensation technique. Knowledge of RC system variations, with their preparation and 3D obturation, is the appropriate qualification for ET.

RETRIEVING BROKEN INSTRUMENT IN HALF OF THE APIKAL ON CANINES TEETH WITH H-FILE BRAIDING TECHNIQUE

ABSTRACTBackground: Broken instruments affect the outcome and prognosis. A broken instrument will prevent the procedure of cleaning and shaping, irrigation and obturation of the root canal on the obstructed root section causing failure in endodontic treatment. There are some treatments for broken instrument including retrieving a broken fragment file and bypassing it on the root canal. the aim of the case report aims to provide an alternative for retrieving broken instruments using the H-file braiding technique. Method: A 38-year-old female patient came to the Dental Conservation Clinic RSGM Prof. Soedomo FKG UGM. A patient got a history of initial root canal treatment in a clinic, which ended with a separated file on canine teeth left upper. No complain pain, from the investigation radiographic there is an instrument broken in half apical. The teeth 23 seen temporary restoration cavity class I is still in good. Retrieving broken instruments using the H-file braiding technique, preparation with step back techniques, obturation with warm vertical condensation technique and class I composite resin restorations with fiber-reinforced retention. Result: No complain pain after 2 weeks retrieving broken instrument.Conclusion: The technique of the H-file braiding technique is one technique to retrieve a broken instrument, this procedure is simple, cost-effective, harmless to the teeth and gives root canal sealing.

Efficacy of XP-endo instruments in removing 54 month-aged root canal filling material from mandibular molars

ObjectiveTo investigate the effectiveness of XP-endo Shaper (XPS) and XP-endo Finisher R (XPFR) instruments in removing aged root filling material from root-treated mandibular molars. MethodsThirty mandibular molars were instrumented and divided into three groups: single-cone obturation using AH Plus sealer (AHS) or EndoSequence BC sealer (BCS), and warm vertical compaction using AH Plus sealer (AHW). The specimens were stored at 100% humidity and 37 °C for 54 months. Retreatment was performed using XPS and XPFR. Micro-computed tomography was used to scan the specimens after 54 months, after XPS retreatment and after the supplementary approach using XPFR. ResultsThe XPS removed more filling material in the BCS and AHS groups, compared with the AHW group (P < 0.05). After supplementary instrumentation XPFR, the proportion of the remaining filling material decreased significantly in all groups (P < 0.05). The XPFR instruments were more efficient in removing filling material in the BCS group than in the AHS or AHW group (P < 0.05). The combined use of XPS and XPFR instruments efficiently removed filling material in the BCS group, followed by the AHS and AHW groups (P < 0.05). ConclusionsAlthough the combined use of XPS and XPFR instruments helped remove the bulk of aged root filling material from mandibular molars, material removal from canals filled using warm vertical condensation in the critical apical area remains a concern. Clinical SignificanceRemoval of the aged filling materials using XP-endo instruments from the apical area is challenging when instrumented root canals are filled using warm vertical condensation.

Efficacy of XP-endo Finisher-R in enhancing removal of bioceramic sealer from oval root canal: a micro CT study

Aim: To investigate the efficacy of the XP-endo Finisher-R (XP-FR) and manual H-filing in enhancing the removal of Totalfill BC sealer from oval root canals. Methodology: Forty mandibular incisors were prepared using ProTaper Next up to file X3 then filled with warm vertical condensation using Totalfill BC sealer. The volume of the root canal filling post-obturation and the remaining volume post-retreatment using Mani NRT-GPR system were assessed using Micro-CT (µ-CT). The total volume in 3 mm was calculated from the cervical line till the root apex using the CT-an software. Specimens were randomly divided into two equal groups n=20 according to the supplementary approach of gutta percha removal used; where Group I: XP-FR was used for 1 min, and Group II: size 30 H-file was used in a filing motion for 1 min. Specimens were again scanned using µ-CT and the remaining gutta percha volume was calculated. Data were statistically analyzed using Wilcoxon, Man-Whitney, Friedman tests with significance level of 5%. Results: Significant reduction of the remining filling material was recorded post-retreatment with percentage of reduction of 63.34%, 78.53%, and 66.21% at the apical, middle, and coronal thirds respectively using Mani NRT-GPR system. Supplementary removal approaches significantly improved filling material removal (P<0.05). XP-FR removed significantly more filling material than manual H-filing with percentage of filling material reduction of 52.22%, 34.92%, and 40.60% compared to 21.89%, 18.43%, 31.72% in the apical, middle, and coronal thirds (Man-Whitney test, P<0.001). Conclusions: Rotary retreatment files failed to totally remove the root canal filling material. Supplementary methods have improved root canal filling material removal; where XP-FR significantly removed more filling than manual H-filing.

Efficiency of Using Different Greater Taper Gutta-Percha Cones in Continuous Warm Vertical Condensation: An Ex Vivo Study

The aim of this ex vivo randomized study is to evaluate the efficiency of gutta-percha cones that match a nickel-titanium instrumentation system and nonmatching greater taper cones, when used with continuous warm vertical condensation technique. Thirty-six straight canals were prepared using ProTaper Next files, and the apical third was obturated using either ProTaperNext cones (group A), ISO uniform greater taper cones (group B), or nonstandardized cones (group C). Cone adaptation time was quantified by the number of required modifications. Micro-computed tomography was used to measure voids and sealer percentage. There was no significant difference between the groups regarding void volume (p = 0.666), percentage (p = 0.379), and the number of modifications (p = 0.757). Sealer percentage, however, was significantly lower in group B when compared to group A (p = 0.0194). In straight canals, matching gutta-percha cones were not associated with significantly better obturation or saving time to fit the cone. Using gutta-percha cones that do not match a nickel-titanium instrumentation system to obturate the straight canals with continuous warm vertical condensation technique is as efficient as using matching cones in terms of obturation quality and ease of cone fit.

Influence of obturating techniques on root dentin crack propagation: A micro-computed tomography assessment.

Aim:The aim is to assess and compare the microcrack formation in radicular dentin after obturating the root canals with cold lateral condensation (CLC), warm vertical condensation (WVC), and injectable gutta-percha (IGP) techniques using micro-computed tomography (CT).Materials and Methods:Human extracted mandibular premolar teeth (n = 60) were haphazardly assigned based on the obturation technique into three experimental groups (n = 20 each). Root canals are cleaned and shaped with M Two rotary files and 3% sodium hypochlorite irrigant. Cross-sectional images were taken with Micro-CT to record the baseline defects present on root samples. After root canal obturation either with CLC or WVC or injectable obturation techniques, micro-CT images were captured again to analyze the increase in the number and type of dentinal defects. Statistical analysis of data was performed using the Mann–Whitney U test and the Mcnemar test at 5% significance level.Results:An increase in the number of radicular micro-cracks was identified in samples obturated with lateral condensation technique (1.66%). No change in the percentage of micro-cracks was recorded after obturation with warm vertical or injectable guttapercha (IGP) techniques (P > 0.05). The three obturation techniques were not statistically different in the occurrence of micro-cracks after obturation.Conclusion:The three obturating techniques tested showed no significant increase in radicular dentin defects' occurrence or propagation.

Evaluation of the quality of three canal obturation techniques: A laboratory study

Introduction: The aim of the present study was to compare the filling capacity of cold lateral condensation, warm vertical condensation and Thermafil® in severely curved canals of extracted human molars. Material and Methods: Mesiobuccal (MB) canals of 90 mandibular molars with angles of curvature ranging between 25° and 35° and radius of 5 to 9 mm curvature were divided into three groups (n=30 each). In each group, canals were instrumented with ProTaper® and obturated either by cold lateral condensation (L), warm vertical condensation (V) or Thermafil® (T). The limit was considered adequate (0-2 mm to the radiologic apex), or with over-obturation or with over-extension. The presence of voids and their location in the canal was also explored and the density was evaluated. Data were analyzed using the Kruskal Wallis test. Differences were significant with a two-sided ? Results: The majority of obturations with adequate limit was from group V (66.8%). Group T displayed the highest proportion of over obturation (46.7%) and group L the highest proportion of over-extension (33.3%) (P < 0> Conclusion: Warm vertical condensation and Thermafil® techniques give the best results for the obturation of curved canals in respect to limit and density. Keywords: Apical limit, Cold lateral condensation, Obturation, Thermafil®, Voids, Warm vertical condensation

Effects of heating on the physical properties of premixed calcium silicate-based root canal sealers.

The purpose of this study was to examine the effect of heating on the physical properties of four types of premixed calcium silicate-based root canal sealers. Endoseal MTA, Well-Root ST, EndoSequence BC Sealer, EndoSequence BC Sealer HiFlow, and AH Plus (epoxy resin root canal sealer) were heated at 100°C for 1 min, and changes in setting time, flow, and film thickness were evaluated in accordance with ISO 6876:2012 standards. In addition, pH measurement and scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses of the set materials were performed. All root canal sealers heated at 100°C showed significant decreases in setting time and flow, particularly Endoseal MTA. In addition, the film thickness of Endoseal MTA increased significantly after heating at 100°C. The pH and SEM/EDS results were not affected by heating. Heating calcium silicate-based root canal sealers accelerated setting time, decreased flow, and increased film thickness. However, the degree of these changes varied among the products. The present findings indicate that heat-induced changes in the physical properties of calcium silicate-based root canal sealers could adversely affect the quality of warm vertical condensation technique.

Chamberless Endodontic Access for Treatment of Calcified Anterior Central Incisors

IntroductionModern techniques for treating maxillary anterior central incisors with calcified canals emphasize maintaining coronal dentin with small crown access. Alternatively, traditional retrograde surgical procedures are focused on creating an apical seal predominately limited to the remaining resected apical one third of the root canal space. A treatment option for calcified anterior teeth, with avoidance of traditional orthograde access, is presented. Chamberless endodontic access (CEA) to the canal is chosen in this case, leveraging a previous surgical treatment and osseous defect to create straight line canal access. MethodsA tooth presenting with a chronic apical abscess and an apparent previous apical surgery was instrumented and obturated using a CEA avoiding the traditional orthograde approach to the root canal system. Straight line approach was achieved retrograde and canal instrumentation was performed using ultrasonic activated U-files. Canal obturation was accomplished with warm vertical condensation technique followed by placement of an apical retroseal. ResultsA successful 52-month outcome demonstrated the viability of CEA facilitating retrograde instrumentation and obturation. ConclusionsUse of CEA simultaneously protected the clinical crown and provided a successful clinical outcome. A viable option for treatment of an anterior calcified canal and abscess due to dental trauma, CEA mitigates many of the risks associated with the treatment of calcified root 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® (Group 2, G2) or TotalFill® BC Points™ combined with TotalFill® 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). Conclusion: 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. Key Words: bioceramic sealer, micro-CT, root canal obturation, root canal sealers volumetric distortion