Challenges in the development of a new obturation device: A questionnaire survey (original) (raw)
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International Journal of Applied Dental Sciences, 2020
Background: Sealing the root canal system is an important step in root canal treatment for a successful outcome. Several techniques and materials have been introduced for a three-dimensional obturation with higher density and homogeneity. Void-free filled canals carry a lower risk of apical periodontitis. 2 Guttapercha has long been used as a popular root filling material. Hence; the present study was undertaken for assessing the efficacy Of Two Obturation Techniques Used in Root Canal Treatment of Anterior Teeth. Materials and methods: The present study was conducted in the Department of Conservative dentistry and Endodontics of the Dental institution. For the study, we used 60 extracted permanent maxillary central incisors with single canal and completed apex formation. We excluded teeth with morphological anomalies and multiple root canals to avoid any bias in the results. For the preparation of root canals, access cavity was made and the canal was located using a #8 K-file. Afte...
Evaluation of Root Canal Obturation: A Three-dimensional In Vitro Study
Journal of Endodontics, 2009
The aim of the study was to measure percentage of volume of voids and gaps in root canals obturated with different obturation materials by using microcomputed tomography (micro-CT). Forty-eight singlerooted teeth were collected and decoronated, and root canals were prepared by using rotary files. The roots were randomly allocated into 4 groups, and each group was obturated by using cold lateral compaction with a different material (gutta-percha and TubliSeal sealer, EndoRez points and EndoRez sealer, RealSeal points and RealSeal sealer, and a gutta-percha point and Gut-taFlow sealer). Roots were scanned with micro-CT, and volume measurements for voids and gaps in the obturated roots were carried out by using specialized CT software. Percentage of gaps and voids was calculated. Statistical analysis showed that gutta-percha exhibited an overall significantly lower percentage (1.02%) of voids and gaps. The present study showed that none of the root canal filled teeth were gap-free. Roots filled with gutta-percha showed less voids and gaps than roots filled with the remaining filling materials. (J Endod 2009;-:1-4)
Comparison of Adaptability of Three Different Root Canal Obturation Materials
World Journal of Dentistry
Objective: The aim was to evaluate and compare the adaptability of the three obturation materials: gutta-percha, GuttaFlow, and Soft-Core to the root canal walls. Materials and methods: Totally 30 mandibular premolar teeth were selected. The teeth were standardized and prepared with ProTaper rotary files. The teeth were randomly and equally divided into three groups-gutta-percha group: obturated with gutta-percha and AH Plus sealer using lateral compaction technique; Soft-Core group: obturated using Soft-Core system; and GuttaFlow: obturated with GuttaFlow. The roots of the teeth were sectioned at three levels (apical, middle, and coronal) and were observed under a stereomicroscope at 40× magnification. Area of voids (AVs), frequency of voids, and location of the voids were analyzed using image analysis software. Results: The lowest mean of AV was obtained by GuttaFlow 1.25% ± 1.93, followed by gutta-percha 1.33% ± 2.16, and Soft-Core 1.74% ± 2.23. Statistical analysis showed no significant difference among the three groups and the levels of the root. The frequency of voids in the coronal and the middle levels was more than the apical for all groups. The highest frequency of voids was detected in Soft-Core, followed by GuttaFlow and gutta-percha respectively. The voids were located in the interphase between sealer and obturation material as well as sealer and root canal walls in the gutta-percha and Soft-Core groups, whereas it was almost confined to the core for GuttaFlow group. Conclusion: GuttaFlow has a better adaptability to the walls compared with Soft-Core system and laterally compacted gutta-percha with AH Plus sealer. Clinical significance: GuttaFlow is an appropriate obturation material to enhance endodontic treatment.
Clinical evaluation of root canal obturation methods in primary teeth
Pediatric dentistry
This study evaluated in vivo 2 different obturation techniques (lentulo spiral mounted in a slow-speed handpiece and hand-held) in primary teeth. The study was carried out on 24 children (mean age = 6.71 years) who had received 50 single-visit zinc oxide and eugenol (ZOE) pulpectomies in primary molars. The root canal filling materials were deposited into the canals either by a lentulo spiral mounted in a slow-speed handpiece or by a hand-held lentulo spiral. Evaluation of pulpectomized molars was performed by both authors immediately and 6 months following treatment using specific clinical and radiographic criteria. In cases of disagreement, the lower rank was selected. The study found 64% (16/25) optimal filling (if 1 or more of the canals having ZOE ended at the radiographic apex or up to 2 mm short of the apex) when the lentulo spiral mounted in the slow-speed handpiece was used. It also found a 96% (21/22) clinical success rate in the group obturated by the lentulo spiral mount...
2017
Introduction: Complete remove the irritants, pathogenic microorganisms and other by-products from the root canal space followed by complete shaping and filling of pulp space with a bio-compatible material with appropriate obturating technique is necessary for the success of root canal therapy. Recent researches in the field of endodontic focuses mainly on the search of ideal obturating technique despite of prevalence of numerous techniques for obturating the canal space after completion of pulp therapy. Hence, we undertook the present study to assess the percentage of gutta-percha filled area (GFA) in the teeth filled with Thermafil technique, Warm Vertical Compaction (WC) technique and cold lateral condensation (CC) technique. Material and Methods: The present study included assessment of a total of 75 permanent teeth. All the samples were divided randomly into three study groups. Group I, II and III included samples which were obturated using CC technique, Thermafil and WC techniq...
An in vitro comparison of hand and rotary instruments in preparing root canal system
INTRODUCTION: The purpose of this in vitro study was to evaluate the sealing ability of the readymade temporary filling and hand mixed materials by assessing coronal microleakage. MATERIALS & METHODS: Standardized access cavities were prepared in 80 intact human permanent premolar teeth. They were divided randomly into four experimental groups (n=20). The teeth were restored using one of the temporary materials including Cavisol, Litrak, Zinc phosphate cement, Zinconol (IRM). Thermocycling was applied on the specimens. Methylene blue dye was applied and penetration was evaluated under stereomicroscope. Grading of the microleakage pattern was from 1 to 3, with 3 providing the best seal. Results were analyzed using one-way ANOVA test (P<0.05). RESULTS: Microleakage of Cavisol and Litrak samples achieved grade 3; whereas zinc phosphate cement and Zinconol samples absorbed the dye into the bulk of the materials. Cavisol was found to exhibit the best seal amongst the four tested materials followed by Litrak, zinc phosphate cement, and Zinconol. There was a statistically significant difference in the microleakage scores obtained between the materials (P<0.01). CONCLUSION: Among the four materials tested, readymade temporary filling provided the best sealing ability over hand-mixed. This study emphasizes the importance of correct placement and sufficient thickness of temporary filling materials in endodontic access cavities to ensure a tight seal.
Quality of obturation achieved by different endodontic obturation systems
2021
Objective: This study was performed to determine in vitro the sealing ability of different endodontic obturation systems and to compare their efficacy. Materials and Methods: In the study were used a total of 36 root canals all of which belong to extracted permanent teeth. Root canals of all samples were prepared with ProTaper Universal rotary files. The teeth were divided into four groups. In each group we had 1 molar with 3 canals, 1 molar with 2 canals, 1 premolar with 1 canal and 3 single-rooted incisors filled by different obturation technique and AH26 sealer. The teeth in the first group were obturated with single-cone technique, in the second group by cold lateral condensation, and the teeth in the third group were obturated with Thermafil. In the fourth group obturation was done with GuttaFlow. After radiography of the root canal fillings, the roots were sectioned horizontally at the level of 2 mm and 4 mm from the apex. The area of gaps and adaptation to canal walls were evaluated using stereomicroscopy and calculated. Results: Evaluation of quality of obturation of root canals based on X-ray examination exhibited compact seal of root canals in all research groups, except with single-cone technique. Evaluation of cross sections revealed that lateral condensation showed the best hermetic sealing and the single-cone technique the worst. GuttaFlow and Thermafil have similar sealing effect. Conclusion: It can be concluded that the density of guttapercha was observed to decrease towards the coronal aspect when the single cone and GuttaFlow were used.
International Journal of Research in Pharmaceutical Sciences
Single visit root canal therapies are indicated when no periapical changes are appreciated. The final stage of the root canal treatment deals with the filling of the canal system with a biocompatible material. Obturation comprises a core filling material and a sealer. The study aimed to evaluate the type of sealer used for obturation of posterior teeth treated in a single visit and to correlate the sealer use with factors like tooth, gender and operator qualification. The study was a retrospective analysis. A total of 86,000 case sheets were reviewed and necessary data was extracted. The type of sealer used for the obturation was assessed and tabulated along with details like age, gender and tooth. The data was exported to IBM SPSS Software 20. Frequency distribution tables were created and a Chi-square test was performed to check for the correlation of the type of sealer used with various parameters. A total of 1209 molar cases were treated out of which 34.5% were maxillary first m...