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Souza BDM, Garcia LFR, Bortoluzzi EA, Felippe WT, Felippe MCS. Effects of several storage media on viability and proliferation capacity of periodontal ligament cells. Eur Arch Paediatr Dent 2019; 21:53-59. [DOI: 10.1007/s40368-019-00450-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 05/13/2019] [Indexed: 11/29/2022]
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Ribeiro DM, Réus JC, Felippe WT, Pacheco-Pereira C, Dutra KL, Santos JN, Porporatti AL, De Luca Canto G. Technical quality of root canal treatment performed by undergraduate students using hand instrumentation: a meta-analysis. Int Endod J 2017; 51:269-283. [PMID: 28862763 DOI: 10.1111/iej.12853] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 08/28/2017] [Indexed: 12/31/2022]
Abstract
The technical quality of root canal treatment (RCT) may impact on the outcome. The quality of education received during undergraduate school may be linked to the quality of treatment provided in general dental practice. In this context, the aim of this systematic review was to answer the following focused questions: (i) What is the frequency of acceptable technical quality of root fillings, assessed radiographically, performed by undergraduate students? (ii) What are the most common errors assessed radiographically and reported in these treatments? For this purpose, articles that evaluated the quality of root fillings performed by undergraduate students were selected. Data were collected based on predetermined criteria. The key features from the included studies were extracted. GRADE-tool assessed the quality of the evidence. MAStARI evaluated the methodological quality, and a meta-analysis on all studies was conducted. At the end of the screening, 24 articles were identified. Overall frequency of acceptable technical quality of root fillings was 48%. From this total, 52% related to anterior teeth, 49% to premolars and 26% to molars. The main procedural errors reported were ledge formation, furcation perforation, apical transportation and apical perforation. The heterogeneity amongst the studies was high (84-99%). Five studies had a high risk of bias, eight had a moderate risk, and 11 had low risk. The overall quality of evidence identified was very low. The conclusion was that technical quality of root fillings performed by undergraduate students is low, which may reveal that endodontic education has limited achievement at undergraduate level. A plan to improve the quality of root fillings, and by extrapolation the overall quality of root canal treatment, should be discussed by the staff responsible for endodontic education and training.
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Affiliation(s)
- D M Ribeiro
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | - J C Réus
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | - W T Felippe
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | - C Pacheco-Pereira
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta Edmonton, Edmonton, AB, Canada
| | - K L Dutra
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | - J N Santos
- School of Dentistry, Laval University, Quebec, QC, Canada
| | - A L Porporatti
- Brazilian Centre for Evidence-Based Research, Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | - G De Luca Canto
- School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta Edmonton, Edmonton, AB, Canada.,Brazilian Centre for Evidence-Based Research, Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
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Bernardi A, Bortoluzzi EA, Felippe WT, Felippe MCS, Wan WS, Teixeira CS. Effects of the addition of nanoparticulate calcium carbonate on setting time, dimensional change, compressive strength, solubility and pH of MTA. Int Endod J 2016; 50:97-105. [DOI: 10.1111/iej.12594] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 12/02/2015] [Indexed: 11/25/2022]
Affiliation(s)
- A. Bernardi
- Department of Dentistry; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - E. A. Bortoluzzi
- Department of Dentistry; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - W. T. Felippe
- Department of Dentistry; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - M. C. S. Felippe
- Department of Dentistry; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - W. S. Wan
- Department of Materials Engineering; Federal University Ouro Preto; Minas Gerais Brazil
| | - C. S. Teixeira
- Department of Dentistry; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
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dos Santos LGP, Felippe WT, Teixeira CS, Bortoluzzi EA, Felippe MCS. Endodontic re-instrumentation enhances hydroxyl ion diffusion through radicular dentine. Int Endod J 2013; 47:776-83. [DOI: 10.1111/iej.12217] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 11/14/2013] [Indexed: 12/01/2022]
Affiliation(s)
- L. G. P. dos Santos
- Postgraduate Program; Federal University of Santa Catarina; Florianopolis Santa Catarina Brazil
| | - W. T. Felippe
- Department of Dentistry; Federal University of Santa Catarina; Florianopolis Santa Catarina Brazil
| | - C. S. Teixeira
- Department of Dentistry; Federal University of Santa Catarina; Florianopolis Santa Catarina Brazil
| | - E. A. Bortoluzzi
- Department of Dentistry; Federal University of Santa Catarina; Florianopolis Santa Catarina Brazil
| | - M. C. S. Felippe
- Department of Dentistry; Federal University of Santa Catarina; Florianopolis Santa Catarina Brazil
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Bósio CC, Felippe GS, Bortoluzzi EA, Felippe MCS, Felippe WT, Rivero ERC. Subcutaneous connective tissue reactions to iRoot SP, mineral trioxide aggregate (MTA) Fillapex, DiaRoot BioAggregate and MTA. Int Endod J 2013; 47:667-74. [DOI: 10.1111/iej.12203] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- C. C. Bósio
- Center of Health Sciences; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - G. S. Felippe
- Center of Health Sciences; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - E. A. Bortoluzzi
- Center of Health Sciences; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - M. C. S. Felippe
- Center of Health Sciences; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - W. T. Felippe
- Center of Health Sciences; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
| | - E. R. C. Rivero
- Center of Health Sciences; Federal University of Santa Catarina; Florianópolis Santa Catarina Brazil
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de Almeida J, Felippe MCS, Bortoluzzi EA, Teixeira CS, Felippe WT. Influence of the exposure of MTA with and without calcium chloride to phosphate-buffered saline on the push-out bond strength to dentine. Int Endod J 2013; 47:449-53. [DOI: 10.1111/iej.12168] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 07/09/2013] [Indexed: 11/30/2022]
Affiliation(s)
- J. de Almeida
- School of Dentistry; Federal University of Santa Catarina; Florianópolis Brazil
| | - M. C. S Felippe
- School of Dentistry; Federal University of Santa Catarina; Florianópolis Brazil
| | - E. A. Bortoluzzi
- School of Dentistry; Federal University of Santa Catarina; Florianópolis Brazil
| | - C. S. Teixeira
- School of Dentistry; Federal University of Santa Catarina; Florianópolis Brazil
| | - W. T. Felippe
- School of Dentistry; Federal University of Santa Catarina; Florianópolis Brazil
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Souza BDM, Lückemeyer DD, Reyes-Carmona JF, Felippe WT, Simões CMO, Felippe MCS. Viability of human periodontal ligament fibroblasts in milk, Hank’s balanced salt solution and coconut water as storage media. Int Endod J 2010; 44:111-5. [DOI: 10.1111/j.1365-2591.2010.01809.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Felippe WT, Felippe MCS, Reyes Carmona J, Crozoé FCI, Alvisi BB. Ex vivo evaluation of the ability of the ROOT ZX II to locate the apical foramen and to control the apical extent of rotary canal instrumentation. Int Endod J 2008; 41:502-7. [DOI: 10.1111/j.1365-2591.2008.01386.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Felippe WT, Felippe MCS, Rocha MJC. The effect of mineral trioxide aggregate on the apexification and periapical healing of teeth with incomplete root formation. Int Endod J 2006; 39:2-9. [PMID: 16409322 DOI: 10.1111/j.1365-2591.2005.01037.x] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AIM To evaluate the influence of mineral trioxide aggregate (MTA) on apexification and periapical healing of teeth in dogs with incomplete root formation and previously contaminated canals and to verify the necessity of employing calcium hydroxide paste before using MTA. METHODOLOGY Twenty premolars from two 6-month old dogs were used. After access to the root canals and complete removal of the pulp, the canal systems remained exposed to the oral environment for 2 weeks. Canal preparation was then carried out using Hedström files, under irrigation with 1% sodium hypochlorite, 1 mm short of the radiographic apex. After drying, the canals of two premolars in each dog were left empty (control group). The other eight teeth in each animal were divided into two experimental groups. The apical thirds of the canals of group 1 were filled with MTA. In the teeth of group 2, the canals were dressed with a calcium hydroxide-propylene glycol paste. After 1 week, the paste was removed and the apical third was filled with MTA. All teeth were restored with reinforced zinc oxide cement (IRM) and amalgam. The animals were killed 5 months later, and blocks of the teeth and surrounding tissues were submitted to histological processing. The sections were studied to evaluate seven parameters: formation of an apical calcified tissue barrier, level of barrier formation, inflammatory reaction, bone and root resorption, MTA extrusion, and microorganisms. Results of experimental groups were analysed by Wilcoxon's nonparametric tests and by the test of proportions. The critical value of statistical significance was 5%. RESULTS Significant differences (P < 0.05) were found in relation to the position of barrier formation and MTA extrusion. The barrier was formed in the interior of the canal in 69.2% of roots from MTA group only. In group 2, it was formed beyond the limits of the canal walls in 75% of the roots. MTA extrusion occurred mainly in roots from group 2. There was similarity between the groups for the other parameters. CONCLUSIONS Mineral trioxide aggregate used after root canal preparation favoured the occurrence of the apexification and periapical healing. The initial use of calcium hydroxide paste was not necessary for apexification to occur, and has shown to be strongly related to the extrusion of MTA and formation of barriers beyond the limits of the root canal walls.
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Affiliation(s)
- W T Felippe
- School of Dentistry, Federal University of Santa Catarina, Florianópolis, SC, Brazil.
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Alves AMH, Felippe MCS, Felippe WT, Rocha MJC. Ex vivo evaluation of the capacity of the Tri Auto ZX to locate the apical foramen during root canal retreatment. Int Endod J 2005; 38:718-24. [PMID: 16164686 DOI: 10.1111/j.1365-2591.2005.01007.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM To evaluate ex vivo the capacity of the Tri Auto ZX to locate the apical foramen during root canal retreatment. METHODOLOGY The root canals of 62 maxillary and mandibular canines were prepared to a length 1 mm short of the apical foramen, to an apical size 35 using 1% sodium hypochlorite as an irrigant. Once prepared, the length of each tooth was measured directly using a size 15 K-Flexofile introduced in the canal until the tip was visible at the apical foramen. After the file was removed, its length was recorded to a precision of 0.01 mm using a calliper. These direct lengths (DL) became the 'gold standard' for comparison with the electronic lengths (EL) derived from the Tri Auto ZX. After direct measurement, the tooth was measured electronically (EL1) and the canals were filled using lateral condensation of gutta-percha cones and sealer. Seven days later the root filling was removed using solvent, Gates-Glidden burs, and K-files, and new electronic lengths determined (EL2). The electronic lengths (EL1 and EL2) were compared with the DL, and the differences were analysed statistically using the proportions test and Student's t-test. RESULTS At a tolerance limit of +/-0.5 mm, EL1 coincided with the DL in 76% of cases. Lengths obtained in the presence of remnant of filling material (EL2) coincided in 81% of cases. The proportions test used to compare these percentages showed no statistically significant difference between EL1 and EL2 (P > 0.05). The Student's t-test revealed a statistically significant difference (P < 0.05) between the means of the differences between DL/EL1 (-0.36 mm) and DL/EL2 (-0.04 mm). CONCLUSION The Tri Auto ZX was accurate to +/-0.5 mm in more than 80% of teeth following removal of root fillings.
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Affiliation(s)
- A M H Alves
- School of Dentistry, Federal University of Santa Catarina, Florianopolis, Brazil.
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Felippe MCS, Felippe WT, Marques MM, Antoniazzi JH. The effect of the renewal of calcium hydroxide paste on the apexification and periapical healing of teeth with incomplete root formation. Int Endod J 2005; 38:436-42. [PMID: 15946263 DOI: 10.1111/j.1365-2591.2005.00959.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the influence of renewing calcium hydroxide paste on apexification and periapical healing of teeth in dogs with incomplete root formation and previously contaminated canals. METHODOLOGY Forty premolars from four 6-month-old dogs were used. After access to the root canals and complete removal of the pulp, the canal systems remained exposed to the oral environment for 2 weeks. Canal preparation was then carried out using Hedströem files, under irrigation with 1% sodium hypochlorite, 1 mm short of the radiographic apex. After drying, the canals of one premolar in each dog were left empty (group 4-control), and those of the other nine teeth in each animal were filled with a calcium hydroxide-propylene glycol paste. All teeth were restored with reinforced zinc oxide cement (IRM) or IRM and amalgam (group 4). The paste was renewed and the teeth restored again 1 week later. Then, the nine teeth in each animal were divided into three experimental groups: group 1 - paste not changed; group 2 - paste renewed every 4 weeks for 5 months; and group 3 - paste renewed after 3 months had elapsed. The teeth were restored with IRM and amalgam (groups 1 and 3) or IRM (group 2). The animals were killed 5 months later, and blocks of the teeth and surrounding tissues were submitted to histological processing. The sections were studied to evaluate six parameters: apical calcified tissue barrier, inflammatory reaction, bone and root resorption, paste extrusion and microorganisms. Results of experimental groups were analysed by Kruskal-Wallis nonparametric tests and by the test of proportions. The critical value of statistical significance was 5%. RESULTS Significant differences (P < 0.05) were found in relation to the presence of bone resorption and paste in the periradicular area, the formation of a calcified tissue barrier at the apex, and the intensity of the apical inflammatory reaction. Bone resorption was more evident in group 1 (medicament not changed), and the presence of paste in the periodontal tissues was more common in groups 2 and 3. Renewal of the paste reduced the intensity of the inflammatory reaction (groups 2 and 3), but the formation of apical calcified tissue was more noticeable in the teeth where the paste had not been renewed. CONCLUSIONS Replacement of calcium hydroxide paste was not necessary for apexification to occur, however, it did reduce significantly the intensity of the inflammatory process. Monthly renewal of calcium hydroxide paste reduced significantly the occurrence of apexification.
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Affiliation(s)
- M C S Felippe
- Discipline of Endodontics, Faculty of Dentistry, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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Abstract
AIM To verify, under the scanning electron microscope (SEM), the influence of irrigation time with ethylenediaminetetraacetic acid (EDTA) and sodium hypochlorite (NaOCl) on intracanal smear layer removal. METHODOLOGY Twenty-one extracted human permanent teeth with single straight root canals were included. The root canals of the teeth were instrumented and, at the end of preparation, were irrigated with 3 mL of 15% EDTA, followed by 3 mL of 1% NaOCl for 1 min (group 1), for 3 min (group 2), and for 5 min (group 3). The canals of teeth in group 4 (control) did not receive the final irrigation. The teeth were sectioned longitudinally and prepared for an SEM. The dentinal wall of cervical, middle and apical thirds was graded according to the amount of debris and smear layer remaining on the walls. The results were analysed using the Kruskal-Wallis and Conover-Inman tests. RESULTS In all the canals of experimental groups irrigation with EDTA and NaOCl completely removed the smear layer from the cervical and middle thirds. In the apical third, the dentine surface were partially covered, particularly in the teeth of group 1, where there was significantly more smear layer when compared with the other thirds in the same group (P<0.007). However, the Kruskal-Wallis test showed overall that there were no significant differences between groups 1, 2 and 3 (P>0.05). CONCLUSION In this limited laboratory study, canal irrigation with EDTA and NaOCl for 1, 3 and 5 min were equally effective in removing the smear layer from the canal walls of straight roots.
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Affiliation(s)
- C S Teixeira
- Dental School, Federal University of Santa Catarina, Florianópolis, Brazil.
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