scholarly journals Complete Obturation—Cold Lateral Condensation vs. Thermoplastic Techniques: A Systematic Review of Micro-CT Studies

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4013
Author(s):  
Shilpa Bhandi ◽  
Mohammed Mashyakhy ◽  
Abdulaziz S. Abumelha ◽  
Mazen F. Alkahtany ◽  
Mohamed Jamal ◽  
...  
Keyword(s):  
Root Canal ◽  
Risk Of Bias ◽  
Micro Ct ◽  
Canal System ◽  
Gutta Percha ◽  
Hermetic Seal ◽  
Root Canal System ◽  
Time Restriction ◽  
Selection Of ◽  
Ct Studies

To prevent re-infection and provide a hermetic seal of the root canal system, an endodontist must aim to produce a void-free obturation. This review aimed to compare the completeness of root canal obturation between the two most prevalent methods—cold lateral condensation and warm gutta-percha techniques—using micro-CT (PROSPERO reg no. 249815). Materials and Methods: A search of Scopus, Embase, PubMed (Medline via PubMed), and Web of Science databases was done without any time restriction according to the PRISMA protocol. Articles that compared both techniques and were published in English were included. Data was extracted and the risk of bias was assessed using an adapted tool based on previous studies. Results: A total of 141 studies were identified by the search. Following the screening and selection of articles, 9 studies were included for review. Data was extracted manually and tabulated. Most studies had a moderate risk of bias. None determined operator skill in both methods before comparison. The data extracted from the included studies suggests that both techniques produce voids in the obturation. The thermoplasticized gutta-percha techniques may result in fewer voids compared to cold lateral condensation. Conclusion: Considering the limitations of the included studies, it was concluded that neither technique could completely obturate the root canal. Thermoplasticized gutta-percha techniques showed better outcomes despite a possible learning bias in favor of cold lateral condensation. Establishing operator skills before comparison may help reduce this bias.

scholarly journals Microbial infection and its control in cases of symptomatic apical periodontitis: A review

Medicina ◽  
2008 ◽  
Vol 45 (5) ◽  
pp. 343 ◽  
Author(s):  
Neringa Skučaitė ◽  
Vytautė Pečiulienė ◽  
Vita Mačiulskienė
Keyword(s):  
Host Resistance ◽  
Root Canal ◽  
Susceptibility Testing ◽  
Apical Periodontitis ◽  
Microbial Infection ◽  
Canal System ◽  
Root Canal Therapy ◽  
Dental Origin ◽  
Root Canal System ◽  
Selection Of

Apical periodontitis is an inflammation of dental periapical tissues developed as a response to colonization of microorganisms in root canal system. Etiology of periapical pathology is associated with different species of microorganisms that are not fully defined yet. The changes in the composition of root canal microbiota as well as other factors, such as host resistance to various infections and concomitant viral infection, etc., can influence development of the symptomatic apical periodontitis. Etiology of disease is reviewed in this article. The purpose of treatment of symptomatic apical periodontitis is to eliminate the infection in root canal system and to obtain relief of symptoms. It can be done by conventional root canal therapy, which can be combined with anti-inflammatory medication. Indications for antibiotic therapy in such cases are limited to particular occasions, which are considered in article. Nevertheless, findings show that usually dentists prescribe antibiotics improperly in clinical practice. It can render drugs ineffective against diseases of dental origin as well as against potentially fatal infectious diseases. Selection of antibiotics for the treatment of root canal infections is reviewed in this article. Importance of antimicrobial susceptibility testing is emphasized. There is a need for more research on microbial causes and interactions in different forms of apical periodontitis to improve diagnosis and treatment.

scholarly journals Nonsurgical Retreatment of Lower Incisor with Apical Lesion

2014 ◽  
Vol 3 (2) ◽  
pp. 98-102
Author(s):  
Alberto Dagna
Keyword(s):  
Root Canal ◽  
Mineral Trioxide Aggregate ◽  
Canal System ◽  
Lower Incisor ◽  
Endodontic Surgery ◽  
Gutta Percha ◽  
First Choice ◽  
Root Canal System ◽  
The Right

ABSTRACT Orthograde retreatment is the first choice to manage an endodontic failure, because surgical approach not always eliminates from the root canal all those microorganisms that caused the failure. Endodontic surgery is commonly performed, when the root canal space is no longer accessible as a result of the presence coronal obstacles. But this case report demonstrates that the attempt to removal of prosthetic crown and post allows to create the right access and then to perform an adequate shaping, cleansing and sealing of the root canal system, even if the chronic periapical pathology induced an initial apical resorption. When the apical diameter is increased, perfect obturation with gutta-percha is not possible, and the apical sealing can be managed with mineral trioxide aggregate (MTA). Follow-up intraoral periapical radiograph at 20 months shows adequate repair of the periapical rarefaction. How to cite this article Dagna A, Saini R. Nonsurgical Retreatment of Lower Incisor with Apical Lesion. Int J Experiment Dent Sci 2014;3(2):98-102.

scholarly journals Removal of Gutta-Percha from the Root Canals using Three Different Rotary Files

2013 ◽  
Vol 01 (03) ◽  
pp. 159-162
Author(s):  
Harleen Gill ◽  
Ajay Chhabra ◽  
Varun Jindal ◽  
Ankur Vats ◽  
Gurkirat Grewal
Keyword(s):  
Root Canal ◽  
Root Canal Treatment ◽  
Canal System ◽  
Root Canals ◽  
Gutta Percha ◽  
Rotary Instruments ◽  
Debris Removal ◽  
Ah Plus ◽  
Root Canal System ◽  
Endodontic Retreatment

AbstractIn case of failed root canal treatment endodontic retreatment of the root canal system is necessary. The aim of the present study was to compare the gutta-percha removal with Protaper retreatment files (Dentsply Maillefer, Ballaigues, Switzerland), K3 (SybronEndo) and Hero Shapers (MicroMega, Besancon, France). Method: Thirty freshly extracted human single rooted teeth were prepared with ProTaper rotary instruments up to file F3 andfilled with 30 # GP cones and AH plus sealer. The teeth were then stored for 1 week. The teeth were divide into 3 retreatment groups (n=10). The gutta-percha was removed using Protaper retreatment files, K3 and Hero Shapers. Teeth were then evaluated using radiographs. Results: Comparing the ratio between clean canals Protaper and K3 showed better debris removal as compared to Hero shaper. But no significance difference was found.

scholarly journals Ability of Three Endodontic Sealers to Fill the Root Canal System in Association with Gutta-Percha

2016 ◽  
Vol 10 (1) ◽  
pp. 12-18 ◽  
Author(s):  
Fabiola Ormiga ◽  
Danielle Ferreira de Assis ◽  
Patricia de Andrade Risso
Keyword(s):  
Root Canal ◽  
Continuous Wave ◽  
Canal System ◽  
Gutta Percha ◽  
Chi Squared ◽  
Ah Plus ◽  
Root Canal System ◽  
Endodontic Sealers

Introduction: The present study compared the ability of the endodontic sealers AH Plus, Pulp Canal Sealer and EndoREZ to fill the root canal system in association with gutta-percha. Methods: Ninety mandibular premolars were accessed, prepared and divided into three groups of 30 teeth each, according to the sealer used to fill the canals: AH Plus, Pulp Canal Sealer and EndoREZ. All the teeth were filled using the continuous wave of condensation technique. The specimens were then decalcified, dehydrated, rendered transparent, and analyzed by three independent evaluators with 8x magnification. Chi-squared test (χ2, p < 0.05) was used to compare the groups in relation to the totally filled, the partially filled and the non filled ramifications. The same test was used to compare the directions of filled ramifications and the number of ramifications among the three thirds of the roots. Results: EndoREZ filled a significantly higher number of ramifications than AH Plus and Pulp Canal Sealer (χ2, p < 0.05). All the groups showed higher number of totally filled ramifications than partially filled and unfilled ramifications. The ramifications were more frequently detected in the apical third, followed by medium and coronal thirds, respectively (χ2, p < 0.05). The ramifications were more frequently detected towards lingual direction (χ2, p < 0.05). Conclusion: EndoREZ presented higher ability to fill the root canal system in association with gutta-percha when compared to AH Plus and Pulp Canal Sealer. The ramifications were more frequently detected in the apical third, running in a lingual direction.

scholarly journals Comparative Analysis of Ease of Removal of Fractured NiTi Endodontic Rotary Files from the Root Canal System—An In Vitro Study

2022 ◽  
Vol 19 (2) ◽  
pp. 718
Author(s):  
Vicente Faus-Matoses ◽  
Eva Burgos Ibáñez ◽  
Vicente Faus-Llácer ◽  
Celia Ruiz-Sánchez ◽  
Álvaro Zubizarreta-Macho ◽  
...  
Keyword(s):  
Root Canal ◽  
Study Groups ◽  
Wilcoxon Test ◽  
Ct Scans ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Canal System ◽  
The Us ◽  
Canal Systems ◽  
Root Canal System

This study aimed at analyzing and comparing the ease of removal of fractured nickel–titanium (NiTi) endodontic rotary files from the root canal system between the ultrasonic tips and the Endo Rescue appliance removal systems, as well as comparing the volume of dentin removed between ultrasonic tips and the Endo Rescue appliance using a micro-computed tomography (micro-CT) scan. Material and Methods: Forty NiTi endodontic rotary files were intentionally fractured in 40 root canal systems of 20 lower first molar teeth and distributed into the following study groups: A: Ultrasonic tips (n = 20) (US) and B: Endo Rescue device (n = 20) (ER). Preoperative and postoperative micro-CT scans were uploaded into image processing software to analyze the volumetric variations of dentin using an algorithm that enables progressive differentiation between neighboring pixels after defining and segmenting the fractured NiTi endodontic rotary files and the root canal systems in both micro-CT scans. A non-parametric Mann–Whitney–Wilcoxon test or t-test for independent samples was used to analyze the results. Results: The US and ES study groups saw 8 (1 mesiobuccal and 7 distal root canal system) and 3 (distal root canal system) fractured NiTi endodontic rotary files removed, respectively. No statistically significant differences were found in the amount of dentin removed between the US and ER study groups at the mesiobuccal (p = 0.9109) and distal root canal system (p = 0.8669). Conclusions: Ultrasonic tips enable greater ease of removal of NiTi endodontic rotary files from the root canal system, with similar amounts of dentin removal between the two methods.

scholarly journals Evaluation of Palatal Furcation Groove and Root Canal Anatomy of Maxillary First Premolar: A CBCT and Micro-CT Study

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Xiaojing Liu ◽  
Meili Gao ◽  
Qingxia Bai ◽  
Jianping Ruan ◽  
Qun Lu
Keyword(s):  
Root Canal ◽  
Cone Beam ◽  
Type I ◽  
Micro Ct ◽  
Canal System ◽  
Wall Width ◽  
Type Iv ◽  
Root Canal Morphology ◽  
Root Canal System ◽  
The Mean

Objectives. This study is aimed at investigating the root and root canal morphology by cone beam computed tomography (CBCT) and palatal furcation groove of the buccal root by microcomputed tomography (micro-CT) of maxillary first premolars in a Chinese subpopulation. Methods. This study assessed CBCT images of 440 patients aged 14-80 years. Based on Vertucci’s classification, the number of roots and the canal configuration were determined. Forty-eight maxillary first premolars with furcation grooves were analyzed by micro-CT in patients aged 18-25 years. Results. Based on the CBCT assay, 70.22% and 29.32% of maxillary first premolars were 1 root and 2 roots, respectively. The configuration indicated statistical difference ( P < 0.05 ) between male and female patients. The most common canal type was type IV and was found in 44.32% of cases, followed by type I in 27.84%, and then type II in 20.57%. Root bifurcations had 40.13% prevalence which was distributed more in the middle third than in the cervical and the apical third. For the micro-CT study, 95.83% of the furcation groove configuration was found in the bifurcated maxillary first premolars. The length varied from 1.02 to 7.63 mm. The mean depth of this groove was 0.57 mm in the root coronal, 0.47 mm in the root middle, and 0.22 mm in the root apical level. Palatal dentin width was smaller than 1 mm. Conclusion. The anatomy of the root and root canal system and the irregular wall width of maxillary first premolars with furcation grooves may help dentists to understand the anatomical morphology and improve the outcomes of endodontic treatment.

scholarly journals Micro-tomographic characterization of the root and canal system morphology of mandibular first premolars in a Chilean population

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Alfredo Sierra-Cristancho ◽  
Luis González-Osuna ◽  
Daniela Poblete ◽  
Emilio A. Cafferata ◽  
Paola Carvajal ◽  
...  
Keyword(s):  
Root Canal ◽  
Multiple Root ◽  
Root Anatomy ◽  
Type I ◽  
Micro Computed Tomography ◽  
Canal System ◽  
Root Canals ◽  
Wide Range ◽  
Root Canal System ◽  
Chilean Population

AbstractThis study aimed to analyze the root anatomy and root canal system morphology of mandibular first premolars in a Chilean population. 186 teeth were scanned using micro-computed tomography and reconstructed three-dimensionally. The root canal system morphology was classified using both Vertucci’s and Ahmed’s criteria. The radicular grooves were categorized using the ASUDAS system, and the presence of Tomes’ anomalous root was associated with Ahmed’s score. A single root canal was identified in 65.05% of teeth, being configuration type I according to Vertucci’s criteria and code 1MP1 according to Ahmed’s criteria. Radicular grooves were observed in 39.25% of teeth. The ASUDAS scores for radicular grooves were 60.75%, 13.98%, 12.36%, 10.22%, 2.15%, and 0.54%, from grade 0 to grade 5, respectively. The presence of Tomes’ anomalous root was identified only in teeth with multiple root canals, and it was more frequently associated with code 1MP1–2 of Ahmed’s criteria. The root canal system morphology of mandibular first premolars showed a wide range of anatomical variations in the Chilean population. Teeth with multiple root canals had a higher incidence of radicular grooves, which were closely related to more complex internal anatomy. Only teeth with multiple root canals presented Tomes’ anomalous root.

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