Accuracy of an Electronic Apex Locator: A Clinical Evaluation in Primary Molars with and without Resorption

2011 ◽  
Vol 35 (3) ◽  
pp. 255-258 ◽  
Author(s):  
Mesut Enes Odabaş ◽  
Haluk Bodur ◽  
Özlem Tulunoğlu ◽  
Alev Alaç am
Keyword(s):  
Primary Teeth ◽  
Root Resorption ◽  
Statistical Significance ◽  
Healthy Children ◽  
Primary Molar ◽  
Actual Length ◽  
Root Canals ◽  
Working Length ◽  
Microscopic Evaluation ◽  
Electronic Apex Locator

Objective: The aim of this study was to evaluate the accuracy of electronic apex locator (Root ZX) in primary teeth with and without apical root resorption in vivo. Study Design: The electronic working length was determined in 28 primary teeth (A total of 46 primary molar root canals with 24 roots without resorption and 22 roots with resorption) from twenty-eight healthy children using Root ZX. The teeth were then extracted. The actual length of each root was measured placing a K-File until the tip was visible at the apical foramen or the apical resorption level and approved with digital microscopic evaluation under 20× magnification and then withdrawn 1 mm. The distances from the file tip to the base of the rubber stop were measured and compared with the measurement obtained from apex locator. The data were evaluated with t test using standard statistical software (SPSS 13.0). The critical value of statistical significance was 5%. Results: For root canals without resorption, the accuracy of Root ZX was 79.16% and 95.82% within ± 0.5 and ± 1 mm, respectively. For root canals with resorption,the accuracy of Root ZX was 63.63% and 86.35% within ± 0.5 and ± 1 mm, respectively. No statistically significant differences were detect between the electronically determined lengths and the actual lengths regardless of whether or not resorption. Conclusion: Using a Root ZX Electronic Apex Locator in primary teeth with or without resorption is recommended for the determination of working length.

scholarly journals Comparison of root canal length measurement methods in primary teeth

2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Mine Koruyucu ◽  
Merve Bayram ◽  
Yelda Kasımoğlu ◽  
Figen Seymen
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Root Canal ◽  
Primary Teeth ◽  
Conventional Radiography ◽  
Actual Length ◽  
Root Canals ◽  
Working Length ◽  
Electronic Apex Locator ◽  
Scanning Electron

Objectives: The purpose of this study was to evaluate the accuracy of conventional radiography, intraoral digital radiovisiography and electronic apex locator in determining the working length of root canals in primary teeth (in-vivo) and to compare the results with scanning electron microscopy measurements (ex-vivo). Materials and Methods: This study was conducted on 50 primary molar teeth. Standard endodontic access cavity preparations were prepared and the actual length was calculated by calibrated investigators. Working lengths were determined by using conventional radiography, RVG and apex locator in a total of 116 root canals. After the extraction of the teeth, each canal length was determined by using SEM. Data were analysed statistically by using Oneway Anova, Tukey HDS, Student t test and Bonferroni tests. Results: The mean root length measurements with conventional radiography were significantly higher than apex locator, RVG and SEM. The accuracy of apex locator and RVG were higher than conventional radiography in determining the working length in primary teeth. Conclusions: The electronic apex locators provide an acceptable level of accuracy in determining root canal length in primary teeth. Clinical Relevance: The purpose of this study was to evaluate the accuracy of conventional radiography, intraoral digital radiovisiography and electronic apex locator in determining the working length of root canals in primary teeth and,to compare the results with scanning electron microscopy measurements.

Comparison of the Accuracy of Apex Locators with Conventional Techniques in determining the Root Canal Length in Primary Teeth

2015 ◽  
Vol 5 (2) ◽  
pp. 61-64
Author(s):  
Naveen Kumar Kommineni ◽  
P Prathyusha Simha ◽  
Vinay Chand Reddy ◽  
C Lalitha Samyuktha ◽  
Prashanth M Battepati
Keyword(s):  
Digital Radiography ◽  
Root Canal ◽  
Primary Teeth ◽  
Physiological Saline ◽  
Mean Value ◽  
Root Canals ◽  
Working Length ◽  
Significant Difference ◽  
Electronic Apex Locator

ABSTRACT Aim To compare the accuracy of apex locators with conventional techniques in determining the root canal length in primary teeth. Materials and Methods This in vitro study was conducted on twenty extracted primary incisors. After endodontic access preparation, root canals were irrigated with physiological saline solution. The access cavities were dried with cotton pellets and, the roots were dried with paper points before performing the electronic measurement. One operator determined the actual working length (AWL) of the canal and another operator measured working length using conventional F-speed radiographs, digital radiography (Dr suni plus digital radiography system, model no 900-0540) and electronic apex locator- Raypex 5 (VDW GmbH Postfach) 5th generation apex locator. The mean value of differences was obtained and statistical analysis was performed using analysis of variance (ANOVA) and the paired t-test. Results There was no statistically significant difference between tooth lengths estimate on conventional, digital and apex locators. 0.5 to 1 mm of clinically acceptable discrepancy was found between three techniques. Conclusion Although there was no significant statistical difference, electronic apex locator (EAL) has more advantage over other techniques, it is considered accurate in determining the working length in primary teeth. How to cite this article Reddy VK, Kommineni NK, Simha PP, Reddy VC, Samyuktha CL, Battepati PM. Comparison of the Accuracy of Apex Locators with Conventional Techniques in determining the Root Canal Length in Primary Teeth. J Contemp Dent 2015;5(2):61-64.

Resorption of multirooted temporary teeth in children with dentofacial anomalies in accordance with the orthopantomography data

2020 ◽  
Vol 20 (3) ◽  
pp. 235-241
Author(s):  
F. S. Ayupova ◽  
S. N. Alekseenko ◽  
V. Ya. Zobenko ◽  
T. V. Gayvoronskaya
Keyword(s):  
Primary Teeth ◽  
Root Resorption ◽  
Type A ◽  
Mixed Dentition ◽  
Permanent Teeth ◽  
Primary Molars ◽  
Second Primary ◽  
X Rays ◽  
Primary Molar ◽  
Posterior Teeth

Relevance. To study the incidence of different types of resorption of multirooted primary teeth, to specify indications for deciduous molar extraction to prevent eruption abnormalities of permanent posterior teeth in mixed dentition.Materials and methods. Root resorption of 375 multirooted primary teeth (166 first primary molars and 209 second primary molars) was studied on panoramic X-rays of 60 children (30 girls and 30 boys) aged between 7 and 15. Illustrated classification by T.F. Vinogradova (1967) improved by authors was used to determine type and degree of root resorption of multi-rooted primary teeth. Received data were described with absolute values of number of cases and percentage. Chi-square was used to detect differences in sign incidence rate between groups, p<0.05 was considered statistically significant.Results. There were no statistically significant gender differences (p>0,05) in type and degree of root resorption of multirooted primary teeth. Type A resorption prevailed and constituted 53.3% of all primary molars. Disturbances in root resorption of multirooted primary teeth in mixed dentition were related to health condition of primary teeth. Transition of even resorption to unven was considered a risk factor of delayed eruption and aberrant position of permanent teeth, and indication for extraction of a primary molar in question. Conclusions. 1) Even root resorption (type A) was detected in 53.3% of primary molars in mixed dentition by orthopantomography. 2) Transition from even resorption of primary molar roots to uneven resorption was associated with eruption deviations and delayed premolar eruption. 3) Timely extraction of primary molars with uneven root resorption facilitated correct eruption of premolars and increased effectiveness of secondary prevention of malocclusion in children.

Ferric sulfate as pulpotomy agent in primary teeth: twenty month clinical follow-up

2000 ◽  
Vol 24 (4) ◽  
pp. 269-272 ◽  
Author(s):  
Hamijeta Ibricevic ◽  
Qumasha Al-Jame
Keyword(s):  
Success Rate ◽  
Primary Teeth ◽  
Root Resorption ◽  
Clinical Success ◽  
Clinical Success Rate ◽  
Ferric Sulfate ◽  
Primary Molar ◽  
Molar Teeth ◽  
The Moment

Seventy primary molar teeth, carious exposed, symptom free, without any sign of root resorption in children aged from 3 to 6 years (main age 4.3yr) were treated with conventional pulpotomy procedures. Ferric sulfate 15.5% solution (applied for 15 second for 35 teeth) and formocresol solution (five minute procedure of Buckley's formula for next 35 teeth) have been used as pulpotomy agents. In both groups, pulp stumps were covered with zinc-oxide eugenol paste. Permanent restorations were stainless steel crowns. Clinical check up was every three-months and radiographic follow-up time was six and twenty months after treatment. Our results within this period revealed 100% clinical success rate in both groups. Radiographic success rate was in both groups 97.2%, while in 2.8% cases has shown internal root resorption. On the basis of these results, we can recommend ferric sulfate as a pulpotomy agent in primary teeth in substitution for formocresol at the moment.

scholarly journals Microscopic and Chemical Assessments of the Filling Ability in Oval-Shaped Root Canals Using Two Different Carrier-Based Filling Techniques

2019 ◽  
Vol 13 (02) ◽  
pp. 166-171 ◽  
Author(s):  
Davide Mancino ◽  
Naji Kharouf ◽  
Joseph Hemmerlé ◽  
Youssef Haïkel
Keyword(s):  
Electron Microscope ◽  
Statistical Significance ◽  
Analysis Data ◽  
Dentinal Tubules ◽  
X Ray ◽  
Root Canals ◽  
Gutta Percha ◽  
Filling Ability ◽  
Working Length ◽  
Scanning Electron

Abstract Objectives The aim of this study was to assess the filling ability in oval-shaped canals using two different carrier-based filling techniques. Materials and Methods Twenty-four human mandibular premolars with one oval canal were selected. Canals were shaped using WaveOne Gold Primary and ProGlider. Samples were divided into two groups and filled as follows: Thermafil and GuttaCore. The proportions of gutta-percha-filled areas (GPFAs), sealer-filled areas (SFAs), and void areas (VA), at 2 and 5 mm, were analyzed using optical numeric microscope, scanning electron microscope, and energy-dispersive X-ray. Statistical Analysis Data were compared by Kruskal–Wallis one-way analysis of variance on ranks, with statistical significance set at α = 0.05. Results At 2 and 5 mm distances from the apex, this study discloses no statistically different filling ability for the two techniques. Concerning each sample treated using both filling systems, the presence of tags was visualized. At working length (WL)-5, and WL-2, the maximum tag penetration depth for the GuttaCore group into the dentinal tubules was, respectively, 96 μm and 48 μm, whereas the values in the thermafil group were 109 μm, and 55 μm, respectively. Conclusions Our results clearly show that Thermafil and GuttaCore can fill oval-shaped canals in appropriate way. Furthermore, we can state that the GuttaCore obturator allows to preserve the same filling ability than Thermafil obturator, in view of the fact that there was no difference, in terms of GPFA, SFA, and VA between the two different carrier-based obturation techniques.

In Vivo Evaluation of Lesion Sterilization and Tissue Repair in Primary Teeth Pulp Therapy Using Two Antibiotic Drug Combinations

2012 ◽  
Vol 37 (2) ◽  
pp. 189-191 ◽  
Author(s):  
AR Jaya ◽  
P Praveen ◽  
A Anantharaj ◽  
K Venkataraghavan ◽  
S Prathibha Rani
Keyword(s):  
Tissue Repair ◽  
Primary Teeth ◽  
Root Resorption ◽  
Radiographic Evaluation ◽  
Healthy Children ◽  
Pulp Chamber ◽  
In Vivo Evaluation ◽  
Antibacterial Drugs ◽  
Significant Difference ◽  
Antibiotic Drug

Aim : The purpose of this study is to evaluate and compare the clinical and radiographic effectiveness of Ciprofloxacin, Minocycline, Metronidazole combination with Ciprofloxacin, Minocycline and Tinidazole combination when used for Lesion Sterilization and Tissue Repair in primary teeth. Method: 25 healthy children, visiting Dept. of Pediatric & Preventive Dentistry, D.A.P.M.R.V.Dental College, Bangalore, India, aged between 6 - 9 years who were having 30 infected primary teeth are selected and divided into 2 groups. In Group A, a mixture of 3mix-MP Ciprofloxacin, Metronidazole and Minocycline was placed on the floor of the pulp chamber covering the root canal orifices. In Group B a mixture of Ciprofloxacin, Tinidazole and Minocycline was placed as a layer on the floor of the pulp chamber. The procedure was completed in a single visit. Post operative clinical evaluation was done after 1,6,12 and 24 months. Postoperative radiographic evaluation was done at 6,12 and 24 months. Results: No statistically significant difference is observed between both the groups and a combination of Ciprofloxacin, Minocycline and Tinidazole antibacterial drugs can be used on teeth pulpally involved with physiologic root resorption. Conclusion: After a 24 Month follow up, we can conclude that primary teeth with the periradicular lesions, can be conserved by using combination of Ciprofloxacin, Minocycline and Tinidazole antibacterial drugs.

scholarly journals Accuracy of Electronic Apex Locator for Determining the Root Canal Length in Presence of Blood - An In Vitro Study

1970 ◽  
Vol 37 (1) ◽  
pp. 15-18 ◽  
Author(s):  
AKM Bashar ◽  
Reema Joshi ◽  
MS Alam
Keyword(s):  
Root Canal ◽  
In Vitro Study ◽  
Actual Length ◽  
Single Root ◽  
Anterior Teeth ◽  
Acceptable Range ◽  
Working Length ◽  
Length Measurements ◽  
Electronic Apex Locator

Present study was conducted to evaluate the accuracy of Electronic Apex Locator to measure the root canal length in presence of blood, an unavoidable event during extirpation of vital pulp. A number of sixty (60) previously untreated extracted human maxillary and mandibular permanent mature anterior teeth having more or less straight roots with single root canal were included in the study. Root canal lengths were measured using a no. 15 k-file (Mani Inc, Tokyo Japan) in all the teeth until it was just visible through apical foramen that was confirmed by viewing them in Stereomicroscope. The measurements obtained by the Stereomicroscope of all teeth were consider as the ‘Gold standard' and was also consider as the actual length of those teeth. Using an Electronic Apex locator (Foramatron D 10, Percell, USA) was used to measure the canal length of the same sixty teeth introducing human blood into the canal. Now the measurements taken by Electronic Apex locator (EAL) in presence of blood were compared with the actual length taken by the stereomicroscope and difference in the error length compared with stereomicroscopic length were calculated in a range from -0.5mm to >1 mm. It was observed that working length measurements by EAL in presence of blood within canal mostly remain within clinically acceptable range (± 0.5 mm).   DOI: 10.3329/bmj.v37i1.3602 Bangladesh Medical Journal 37(1) 2008 15-18

scholarly journals Management of internal root resorption in primary mandibular right first molar: A case report with four-year follow-up

2021 ◽  
pp. 57-63
Author(s):  
Prasad K Musale ◽  
◽  
Sneha S Kothare ◽  
Abhinav l Talekar ◽  
◽  
...  
Keyword(s):  
Conventional Treatment ◽  
Primary Teeth ◽  
Root Resorption ◽  
Treatment Alternative ◽  
Invasive Treatment ◽  
Primary Molar ◽  
Case Presentation ◽  
Treatment Practices ◽  
General Dentists

Internal inflammatory root resorption in primary teeth is a well-known entity with unknown prevalence. The diagnosis and conservative treatment of such a lesion has perplexed practitioners for decades. The management of a non-perforating internal root resorption is long been debated by general dentists and paediatric dentists alike. This case presentation describes the case of a 4-year old boy with non-perforating internal root resorption in a primary molar treated successfully with endodontic procedure and monitored routinely for four years. The objective here was to suggest a minimally-invasive treatment alternative to conventional treatment practices.

scholarly journals Extrusion of Debris from Primary Molar Root Canals following Instrumentation with Traditional and New File Systems

2017 ◽  
Vol 18 (11) ◽  
pp. 1040-1044 ◽  
Author(s):  
Bhagyashree Thakur ◽  
Ajinkya M Pawar ◽  
Anda Kfir ◽  
Prasanna Neelakantan
Keyword(s):  
Primary Teeth ◽  
File Systems ◽  
Primary Molar ◽  
Group Iii ◽  
Root Canals ◽  
Group I ◽  
Significant Difference ◽  
Molar Teeth ◽  
Post Hoc ◽  
Root Canal Instrumentation

ABSTRACT Introduction To assess the amount of debris extruded apically during instrumentation of distal canals of extracted primary molars by three instrument systems [ProTaper Universal (PTU), ProTaper NEXT (PTN), and self-adjusting file (SAF)] compared with conventional stainless steel hand K-files (HF, control). Materials and methods Primary mandibular molars (n = 120) with a single distal canal were selected and randomly divided into four groups (n = 30) for root canal instrumentation using group I, HF (to size 0.30/0.02 taper), group II, PTU (to size F3), group III, PTN (to size X3), and group IV, SAF. Debris extruded during instrumentation was collected in preweighed Eppendorf tubes, stored in an incubator at 70°C for 5 days and then weighed. Statistical analysis was performed by one-way analysis of variance (ANOVA), followed by Turkey's post hoc test (p = 0.05). Results All the groups resulted in extrusion of debris. There was statistically significant difference (p < 0.001) in the debris extrusion between the three groups: HF (0.00133 ± 0.00012), PTU (0.00109 ± 0.00005), PTN (0.00052 ± 0.00008), and SAF (0.00026 ± 0.00004). Conclusion Instrumentation with SAF resulted in the least debris extrusion when used for shaping root canals of primary molar teeth. Clinical significance Debris extrusion in primary teeth poses an adverse effect on the stem cells and may also alter the permanent dental germ. Debris extrusion is rarely reported for primary teeth and it is important for the clinician to know which endodontic instrumentation leads to less extrusion of debris. How to cite this article Thakur B, Pawar AM, Kfir A, Neelakantan P. Extrusion of Debris from Primary Molar Root Canals following Instrumentation with Traditional and New File Systems. J Contemp Dent Pract 2017;18(11):1040-1044.

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