scholarly journals Evaluation of new endodontic tooth models in clinical education from the perspective of students and demonstrators

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Sareh Said Yekta-Michael ◽  
Christoph Maria Färber ◽  
Alexander Heinzel
Keyword(s):  
Undergraduate Students ◽  
Clinical Education ◽  
Root Canal ◽  
Modified Model ◽  
Additional Tool ◽  
Root Canals ◽  
Treatment Models ◽  
Chi Squared ◽  
Overall Evaluation

Abstract Background The quality of root canal treatments performed by undergraduate students is often unsatisfactory questioning the current methods of teaching. Based on treatment errors made by students participating the endodontic courses at RWTH Aachen University (Germany), new radiopaque artificial root canal treatment models (DRSK RCT; incisor, premolar, molar) were designed and developed. The aim of the study was to evaluate these models by groups of students and demonstrators. Methods A total number of 60 students and seven demonstrators from a single institution (RWTH Aachen) participated in this study. They performed endodontic treatments on either initial versions of the DRSK RCT or modified versions. The initial versions were evaluated by students (n = 25) and demonstrators (n = 7). The obtained questionnaire was conducted as 7-point Likert-Scale covering the topics material properties, feeling while performing exercises and perception of its closeness to reality via 19 items (students) and 21 items (demonstrators). According to the evaluations several alterations were applied to the DRSK RCT, the whole study was repeated and evaluated by different students (n = 35) and the same demonstrators (n = 7). Additionally, the demonstrators blindly evaluated the quality of root canal treatments performed by the students (n = 35) on the modified DRSK RCT. Comparisons between the initial versions and the modified versions were calculated using Chi-squared tests. Results Students as well as demonstrators positively evaluated both variants of the DRSK RCT with especially high ratings in the overall evaluation. Students’ rating of the pulp anatomy significantly increased from 5.4 ± 1.1 (mean ± SD) to 5.9 ± 0.9 (mean ± SD; p < 0.05) for the modified model. Likewise, students felt that the ability to flare root canals improved after alterations have been applied. Ratings significantly increased from 4.8 ± 1.6 (mean ± SD) to 5.6 ± 1.0 (mean ± SD; p < 0.05). Conclusion The results indicate that the DRSK RCT is a promising candidate to be used as an alternative to extracted teeth or as an additional tool for improving dental education. However, some limitations of our analysis have to be considered.

Quality of Root Canal Obturation Performed by Senior Undergraduate Dental Students

2015 ◽  
Vol 4 (3) ◽  
pp. 197
Author(s):  
Sundahnath Nagaraja
Keyword(s):  
Undergraduate Students ◽  
Root Canal ◽  
Dental Students ◽  
Endodontically Treated Teeth ◽  
Root Canal Obturation ◽  
Root Canals ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Mandibular Teeth

The aim of the present study was to assess the quality of canal obturation performed by undergraduate denal students at Saveetha Dental College and Hospitals, Chennai. Records of 200 endodontically treated teeth from patients who were visited by undergraduate students between month of November 2014 to May 2015. Periapical radiographs of all treated teeth were assessed in terms of canal obturation quality (adequate density and length). Forty-five percent of teeth fulfilled the criteria of an acceptable root canal obturation. Adequate length and density of root filling was found in 89% and 34% of teeth, respectively. There was a significant difference between maxillary and mandibular teeth regarding the length of root canal obturation. A significant difference was observed between molars and other tooth types. The frequency of root canals with an acceptable filling was significantly greater in the anterior teeth compared to premolars or molars. The technical quality of root canal treatment performed by undergraduate dental students was found to be less than ideal.

scholarly journals Technical Quality of Root Fillings Performed by Undergraduate Students: A Radiographic Study

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Tatjana Vukadinov ◽  
Larisa Blažić ◽  
Ivana Kantardžić ◽  
Tijana Lainović
Keyword(s):  
Undergraduate Students ◽  
Root Canal ◽  
Statistical Significance ◽  
Technical Quality ◽  
Chi Square ◽  
Root Canals ◽  
School Year ◽  
Apical Transportation ◽  
School Of Dentistry

Aim. The aim of this study was to evaluate the radiographic technical quality of endodontic treatment performed by undergraduate students at the School of Dentistry, Faculty of Medicine, University of Novi Sad, Serbia.Materials and Methods. Electronic records of 220 patients treated by final-year undergraduate students during the school year 2011/2012 were examined, and the final sample consisted of 212 patients, 322 teeth, and 565 root canals. The criteria for overall radiographic adequacy of root canal fillings were defined as the presence of adequate length and density and absence of iatrogenic errors (ledge, fractured instrument, untreated canal, and apical transportation). Chi-square test was used to determine statistical significance between different parameters.Results. Adequate root canal fillings were found in 74.22% of the teeth. The percentage of root fillings with adequate length and density was 89.73% and 92.6%, respectively. Fractured instruments and ledges were present in 16 root canals (2.8%), while the presence of missed canal and apical transportation was observed in 2 cases, each (0.3%).Conclusions. Overall, the technical quality of root canal fillings performed by undergraduate students was satisfactory.

scholarly journals Technical Quality and Associated Iatrogenic Errors of Endodontic Treatments Performed in Extracted Anterior Single-Rooted Teeth by Preclinical Undergraduate Students

2015 ◽  
Vol 19 (2) ◽  
pp. 96-100 ◽  
Author(s):  
Konstantinos Dervenis ◽  
Andreas Koutroulis ◽  
Georgios Chatzopoulos ◽  
Vasileios Kapralos
Keyword(s):  
Undergraduate Students ◽  
Root Canal ◽  
Technical Quality ◽  
Dental Clinic ◽  
Root Canal Filling ◽  
Root Canals ◽  
Anterior Teeth ◽  
Root Canal Instrumentation

SUMMARYAim: To evaluate technical quality of root canal treatments performed in extracted anterior single-rooted teeth in an undergraduate dental clinic, and to record the associated iatrogenic errors.Material and Method: 287 root canal treatments performed by 114 preclinical undergraduate students in extracted anterior teeth at the Department of Endodontology were radiographically evaluated, based on the following parameters: access cavity dimensions and direction, root canal instrumentation, and root canal filling quality.Results: The access cavity was found of adequate dimensions in 28.9% and straight in direction in 71.1% of the material. Erroneous position, overextension of the access cavity and non-straight access were noted in 39.7 %, 21.6% and 28.9% of the cases, respectively. The frequency of ledged root canals was 10.1%, while 84.7% of the teeth had no instrumentation related iatrogenic errors. Regarding root canal filling, incomplete density apically and technical inadequacies in the middle and cervical thirds were observed in 76.3% and 82.3% of the cases. The percentage of flawless endodontic treatments was 3.1%.Conclusions: Most of the endodontic treatments evaluated were classified unacceptable. Inadequate root canal filling density in the middle and cervical third and ledge formation were the most common faults.

scholarly journals Radiographic analysis the obturation’s quality in root canal treatment performed by a South Brazilian sample of undergraduate students

2019 ◽  
Vol 67 ◽  
Author(s):  
Dayane Machado RIBEIRO ◽  
Marcela Daniela HENCKEL ◽  
Fernanda Weber MELLO ◽  
Mara Cristina Santos FELIPPE ◽  
Wilson Tadeu FELIPPE
Keyword(s):  
Undergraduate Students ◽  
Root Canal ◽  
Filling Material ◽  
Chi Square ◽  
Material Density ◽  
Brazilian Sample ◽  
Root Canals ◽  
Common Criteria ◽  
Tooth Type

ABSTRACT Objective to investigate the quality of root canal treatments performed by undergraduate students. Methods 274 root-filled teeth (excluding molars) from the Department of Endodontology of the Federal University of Santa Catarina in a nine-year period were selected and evaluated by two calibrated examiners. The evaluation was based on tooth type, number of root canals, presence or absence curvature, length of filling material considered the radiographic apex as reference (considered adequate shorter than 2mm from radiographic apex), filling material density, filling taper, and overall quality of RCT. Chi-square and Fisher exact tests were performed to analyze associations between variables of interest (p<0.05). Results 197 RCT were classified as acceptable (71.9%). The frequency of adequate RCT was significantly higher in incisor (79.4%) than in premolars (66.4%) or canines (58.1%) (p=0.015). The number of canals did not influence root canal quality in this sample (p>0.05). The factor more frequently identified as unacceptable was filling length (26.6%). All RCT performed in curved teeth and classified as unacceptable were underfilled. Procedural errors, such as perforations or instrumental separation, were not found in this sample. Conclusion The most common criteria identified as unacceptable was the length of the filling material. Incisors had better quality assessment rates than canines and premolars. The high-quality rates found in this sample may be linked to the professor/student rates.

scholarly journals Quality of Root Canal Obturation Performed by Senior Undergraduate Dental Students

2015 ◽  
Vol 4 (3) ◽  
pp. 197
Author(s):  
Sundahnath Nagaraja
Keyword(s):  
Undergraduate Students ◽  
Root Canal ◽  
Dental Students ◽  
Endodontically Treated Teeth ◽  
Root Canal Obturation ◽  
Root Canals ◽  
Anterior Teeth ◽  
Significant Difference ◽  
Mandibular Teeth

The aim of the present study was to assess the quality of canal obturation performed by undergraduate denal students at Saveetha Dental College and Hospitals, Chennai. Records of 200 endodontically treated teeth from patients who were visited by undergraduate students between month of November 2014 to May 2015. Periapical radiographs of all treated teeth were assessed in terms of canal obturation quality (adequate density and length). Forty-five percent of teeth fulfilled the criteria of an acceptable root canal obturation. Adequate length and density of root filling was found in 89% and 34% of teeth, respectively. There was a significant difference between maxillary and mandibular teeth regarding the length of root canal obturation. A significant difference was observed between molars and other tooth types. The frequency of root canals with an acceptable filling was significantly greater in the anterior teeth compared to premolars or molars. The technical quality of root canal treatment performed by undergraduate dental students was found to be less than ideal.

scholarly journals A Prospective Clinical Study of the Efficacy of Hyflex CM Rotary Instruments in an Endodontics Undergraduate Program

2019 ◽  
Vol 23 (1) ◽  
pp. 24-30
Author(s):  
Zoi-Despoina Tzima ◽  
Nikolaos Economides ◽  
Christos Gogos ◽  
Ioannis Kolokouris
Keyword(s):  
Undergraduate Students ◽  
Root Canal ◽  
Root Canal Treatment ◽  
Prospective Clinical Study ◽  
First Year ◽  
Technical Quality ◽  
Root Canals ◽  
Rotary Instruments ◽  
School Of Dentistry

SummaryBackground/Aim: To investigate the incidence of procedural errors with the use of a novel nickel-titanium rotary system (Hyflex CM, Coltene/Whaledent, Altstätten Switzerland), evaluate the technical quality of root canal treatments and assess a questionnaire completed by the participants themselves in an undergraduate dental clinic between 2014 and 2017 (Department of Endodontology, School of Dentistry, Aristotle University of Thessaloniki).Material and Methods: 118 undergraduate students in their first year of clinical practice performed a root canal treatment on a patient’s molar (maxillary/mandibular). None of the participants had previous experience in rotary instrumentation. The periapical radiographs were taken with the use of the paralleling technique for standardization and were collected and evaluated by the investigator. After the root canal treatment was performed the students completed a questionnaire in order to evaluate their training on rotary instrumentation.Results: The overall incidence of instrument separation, apical perforation, root perforation, straightening and ledges was 0.8%, 4.4%, 2.3%, 5.5% and 29% respectively on root canal level. Ledges were detected more often in mandibular mesiobuccal canals. The frequency of root canals with an ‘acceptable’ filling was 68.4%, while overfilled and underfilled canals were found to be 8.6% and 16.2% respectively. The response rate was high (94.9%), 35% of the participants encountered no difficulty in the use of rotary instrumentation and 98.2% would use it again.Conclusions: The incidence of procedural errors was considerably low and the technical quality of the filled root canals was superior to that of similar studies. The responses of the questionnaire demonstrated a positive attitude toward rotary instrumentation.

scholarly journals Technical Quality of Root Canal Filling in Preclinical Training at Strasbourg University Using Two Teaching Protocols

2019 ◽  
Vol 13 (04) ◽  
pp. 521-526 ◽  
Author(s):  
Naji Kharouf ◽  
Joseph Hemmerlé ◽  
Youssef Haikel ◽  
Davide Mancino
Keyword(s):  
Root Canal ◽  
Technical Quality ◽  
Root Canal Filling ◽  
Root Canals ◽  
Mandibular Molars ◽  
Maxillary Molars ◽  
Chi Squared ◽  
Canal Systems ◽  
Preclinical Training

Abstract Objectives The aim of this study was to compare two teaching protocols according to the technical quality of root canal therapy (RCT) and the procedural errors occurred in preclinical training. Materials and Methods Two different groups of students were concerned. The first one (G1) performed a crown-down technique to shape the root canal systems and cold lateral condensation technique to fill them. The second one (G2) performed a step-down technique without initial manual scouting to shape the root canal systems, and cold hydraulic condensation technique, to fill them. G2 used clinical operative microscope to check the access cavity preparation. Statistical Analysis The quality of RCTs and procedural errors were recorded and analyzed using chi-squared test and t-test. Results Four hundred sixty-eight root canals from 152 maxillary molars were treated by the G1 students: 46.6% canals were judged as acceptable. Four hundred sixty-nine root canals from 152 mandibular molars were treated by G1: 58.8% canals were judged as acceptable. Five hundred fifteen root canals from 156 maxillary molars were treated by G2 students: 84.1% canals were judged as acceptable. Four hundred ninety-three root canals from 156 mandibular molars were treated by G2: 90.9% canals were judged as acceptable. Among the errors, the incidence of “ledges” and “fractured instruments” was statistically significant in G1 compared with G2, both on maxillary and on mandibular molars. Conclusions The molar RCTs performed by G2, who got benefit from the new teaching protocol, resulted in a better quality of root filling and in fewer procedural errors compared with the molar RCTs performed by G1.

scholarly journals Assessment of Technical Quality of 9562 Endodontic Cases Treated by Undergraduate Students and Endodontics Specialists

2020 ◽  
Vol 24 (1) ◽  
pp. 9
Author(s):  
Durmuş Alperen Bozkurt ◽  
Arslan Terlemez ◽  
Mutlu Özcan
Keyword(s):  
Clinical Experience ◽  
Undergraduate Students ◽  
Root Canal ◽  
Technical Quality ◽  
Clinical Experiences ◽  
Significance Level ◽  
Root Canals ◽  
And Gender ◽  
Age Range

Objective: The aim of the study was to assessment of technical quality of 9562 endodontic cases treated by heterogeneous groups with different clinical experience. Material and methods: This retrospective study reviewed the dental records of 8590 patients (9562 endodontic cases and 13203 root canals including 3340 retreatment root canals) treated by fourth-year undergraduates, fifth-year undergraduates, endodontic program students, and endodontic specialists between December 2017 and December 2018 at the Department of Endodontics of Necmettin Erbakan University Faculty of Dentistry in Konya. The length, density, and taper of root fillings, the acceptable technical quality of the root filling criteria, and the presence of procedural errors, were recorded. Chi-square tests with a significance level at p=0.05 were used for statistical analysis. Results: Acceptable root fillings were found in 71.5% of endodontic cases. Clinical experience showed statistical differences in the root filling quality among fourth-year undergraduates, fifth-year undergraduates, endodontic program students, and specialists (52, 63.1, 77.9 and 86.5% respectively). Fractured instruments and missed canals were noted in 9.8% and 0.57% of cases treated by endodontic program students significantly more than the other clinical experiences. No statistical differences were found among the clinical experiences in other procedural errors. No statistically significant differences were found between age range and gender in additional root canals. Statistically significant differences were observed between the number of root canal retreatments in terms of age range and gender. Conclusions: Clinical experience affects the technical quality of root canal treatments. Fractured instruments and missed canals, especially by endodontic program students, should be given more attention. KEYWORDS Dental radiography; Education; Undergraduate.

scholarly journals The effect of different irrigation techniques on the quality of cleaning of root canal walls

2008 ◽  
Vol 55 (4) ◽  
pp. 221-228
Author(s):  
Violeta Pavlovic ◽  
Slavoljub Zivkovic
Keyword(s):  
Root Canal ◽  
Smear Layer ◽  
Sodium Hypochlorite Solution ◽  
Efficient Removal ◽  
Human Teeth ◽  
Root Canals ◽  
Group I ◽  
Different Types ◽  
The Difference

Aim: To evaluate the effect of irrigation techniques, i.e. different types of irrigation needles, on the quality of cleaning of root canal walls using scanning electron microscopy (SEM). Material and Method: The study was conducted on 16 extracted, single-rooted, human teeth. The samples were allocated to two experimental groups depending on the type of the irrigation needle. Conventional needles were used for the irrigation of Group I and laterally perforated ones for Group II. All root canals were instrumented using K files and the Step-back technique. During instrumentation, all samples were irrigated with 2.5 % sodium hypochlorite solution followed by final irrigation with 17 % EDTA for 1 min. After that, all samples were irrigated with 10 ml of distilled water. The roots were, then, sectioned longitudinally and middle one third of each root canal was analyzed using SEM. Quantitative analysis was based on criteria by H?lsmann et al. Results: The obtained results showed that the more efficient removal of debris and the smear layer was accomplished in the group of samples irrigated using laterally perforated needles than conventional needles. The difference between the investigated irrigation techniques were statistically significant (p<0.01). Conclusion: The use of laterally perforated needles for irrigation allows more efficient cleaning of root canal walls, i.e. the removal of debris and the smear layer.

Sign in / Sign up

Export Citation Format

Share Document