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Radwanski M, Leski M, Puszkarz AK, Sokolowski J, Hardan L, Bourgi R, Sauro S, Lukomska-Szymanska M. A Micro-CT Analysis of Initial and Long-Term Pores Volume and Porosity of Bioactive Endodontic Sealers. Biomedicines 2022; 10:biomedicines10102403. [PMID: 36289666 PMCID: PMC9599172 DOI: 10.3390/biomedicines10102403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/19/2022] [Accepted: 09/23/2022] [Indexed: 11/21/2022] Open
Abstract
The evaluation of the porosities within the interface of root canals obturated with endodontics materials is extremely important for the long-term success of endodontic treatments. The aim of this study was to compare initial and long-term volume of pores (total, open, closed) and porosity (total, regional) of three bioactive endodontic sealers: GuttaFlow Bioseal, Total Fill BC Sealer, and BioRoot RCS. Root canals were obturated with three “bioactive” sealers using the single-cone technique. The volume of open and closed pores and porosity were calculated using a micro-computed tomography (MCT) method. The measurements were performed after 7 days (initial) and after 6 months (long-term) of incubation. Statistical significance was considered at p < 0.05. The total volume of pores remained unchanged after the 6-month storage. GuttaFlow Bioseal exhibited significantly higher long-term volume in open pores than Total Fill BC Sealer. The total porosity in all the tested sealers presented no statistically significant change after the 6-month storage, except for BioRoot RCS. The total porosity values of this latter material significantly increased after long-term incubation, especially in the apical region. In conclusion, the use of bioactive sealers with excessive tendency to create porosities both in shorth- and long-term periods of storage may compromise the long-term success of endodontic treatments.
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Affiliation(s)
- Mateusz Radwanski
- Department of Endodontics, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland
| | - Michal Leski
- Department of Endodontics, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland
| | - Adam K. Puszkarz
- Institute of Material Science of Textiles and Polymer Composites, Faculty of Material Technologies and Textile Design, Lodz University of Technology, 116 Żeromskiego Street, 90-924 Lodz, Poland
| | - Jerzy Sokolowski
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland
| | - Louis Hardan
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon
| | - Rim Bourgi
- Department of Restorative Dentistry, School of Dentistry, Saint-Joseph University, Beirut 1107 2180, Lebanon
| | - Salvatore Sauro
- Dental Biomaterials and Minimally Invasive Dentistry, Departamento de Odontología, Facultad de Ciencias de la Salud, Universidad CEU-Cardenal Herrera C/Del Pozo ss/n, Alfara del Patriarca, 46115 Valencia, Spain
- Department of Therapeutic Dentistry, I.M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
| | - Monika Lukomska-Szymanska
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska Str., 92-213 Lodz, Poland
- Correspondence: ; Tel.: +48-605-721-200 or +48-426-757-429
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Alharbi A, Reville N, Molinier S, Bastier PL, de Gabory L. Characterization of fungus ball CT-hyperdensities within maxillary and sphenoid sinuses. Dentomaxillofac Radiol 2022; 51:20180384. [PMID: 35762348 PMCID: PMC10043618 DOI: 10.1259/dmfr.20180384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 05/10/2022] [Accepted: 06/03/2022] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES CT-scan hyperdensities (HD) are described in more than 60% of all paranasal sinus fungus ball (FB) cases. Two types can be distinguished according to their density: calcium and metal types. We aimed to establish the prevalence and density of the HD observed in sphenoid and maxillary sinus FB and their relation to dental factors. METHODS This retrospective study included 64 patients operated in a tertiary referral center for unilateral maxillary or sphenoid FB diagnosed by histology or mycology. Pre-operative CT scans were analyzed by three independent observers (two ENT and one radiologist). RESULTS There were 45 maxillary FB and 19 sphenoid FB. 63 FB showed HD. Metal-type HD were observed in 28 maxillary FB but not in sphenoid sinuses. Among maxillary FB, the prevalence of endodontic treatment was significantly more significant on the FB side than on the healthy side (p = 0.02). The prevalence of endodontic treatment on the pathological side was more significant in the metal-type group than in the group without metal-type HD (p = 0.01). Isolated calcium-type HD were evidenced in 17 maxillary FB and 18 sphenoid FB (p = 0.019). CONCLUSION This study highlights the existence of two different types of HD in FBs of the paranasal sinuses with an association between metal-type HD and endodontic treatments.
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Affiliation(s)
| | - Nicolas Reville
- Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Bordeaux, Bordeaux, France
| | - Sandrine Molinier
- Radiology and Medical Imaging Department, University Hospital of Bordeaux, Bordeaux, France
| | - Pierre-Louis Bastier
- Department of Otorhinolaryngology-Head and Neck Surgery, University Hospital of Bordeaux, Bordeaux, France
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Sfeir G, Zogheib C, Patel S, Giraud T, Nagendrababu V, Bukiet F. Calcium Silicate-Based Root Canal Sealers: A Narrative Review and Clinical Perspectives. MATERIALS 2021; 14:ma14143965. [PMID: 34300886 PMCID: PMC8306764 DOI: 10.3390/ma14143965] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 06/30/2021] [Accepted: 07/08/2021] [Indexed: 01/04/2023]
Abstract
Over the last two decades, calcium silicate-based materials have grown in popularity. As root canal sealers, these formulations have been extensively investigated and compared with conventional sealers, such as zinc oxide-eugenol and epoxy resin-based sealers, in in vitro studies that showed their promising properties, especially their biocompatibility, antimicrobial properties, and certain bioactivity. However, the consequence of their higher solubility is a matter of debate and still needs to be clarified, because it may affect their long-term sealing ability. Unlike conventional sealers, those sealers are hydraulic, and their setting is conditioned by the presence of humidity. Current evidence reveals that the properties of calcium silicate-based sealers vary depending on their formulation. To date, only a few short-term investigations addressed the clinical outcome of calcium silicate-based root canal sealers. Their use has been showed to be mainly based on practitioners' clinical habits rather than manufacturers' recommendations or available evidence. However, their particular behavior implies modifications of the clinical protocol used for conventional sealers. This narrative review aimed to discuss the properties of calcium silicate-based sealers and their clinical implications, and to propose rational indications for these sealers based on the current knowledge.
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Affiliation(s)
- Germain Sfeir
- Department of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut 17-5208, Lebanon; (G.S.); (C.Z.)
| | - Carla Zogheib
- Department of Endodontics, Faculty of Dental Medicine, Saint Joseph University of Beirut, Beirut 17-5208, Lebanon; (G.S.); (C.Z.)
| | - Shanon Patel
- King’s College London Dental Institute, Guy’s Tower, Guy’s Hospital, St. Thomas’ Street, London SE1 9RT, UK;
| | - Thomas Giraud
- Assistance Publique des Hôpitaux de Marseille, 13005 France; Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, 13288 Marseille, France;
| | - Venkateshbabu Nagendrababu
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Frédéric Bukiet
- Assistance Publique des Hôpitaux de Marseille, 13005 France; Aix Marseille Univ, CNRS, ISM, Inst Movement Sci, 13288 Marseille, France;
- Correspondence: ; Tel.: +33-(0)6-4395-2183
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Eid D, Medioni E, De-Deus G, Khalil I, Naaman A, Zogheib C. Impact of Warm Vertical Compaction on the Sealing Ability of Calcium Silicate-Based Sealers: A Confocal Microscopic Evaluation. MATERIALS 2021; 14:ma14020372. [PMID: 33466619 PMCID: PMC7828729 DOI: 10.3390/ma14020372] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/05/2020] [Accepted: 12/08/2020] [Indexed: 01/23/2023]
Abstract
The aim of this in vitro study was to evaluate the dentinal tubule penetration of two calcium silicate-based sealers used in warm vertical compaction (WVC) obturation technique in comparison with the single cone (SC) technique by confocal laser scanning microscopy (CLSM). The null hypothesis was that both obturation techniques produced similar sealer penetration depths at 1 and 5 mm from the apex. Forty-four mandibular single-rooted premolars were randomly divided into four equally experimental groups (n = 10) and two control groups (n = 2) according to the type of sealer (Bio-C Angelus, Londrína, PR, Brazil or HiFlow Brasseler, Savannah, GA, USA) with either SC or WVC. The sealers were mixed with a fluorescent dye Rhodamine B (0.1%) to enable the assessment under the CLSM. All the specimens were sectioned horizontally at 1 and 5 mm from the apex. The maximum penetration depth was calculated using the ImageJ Software (ImageJ, NIH). Data were analyzed by Mann-Whitney U and Kruskal-Wallis tests (p < 0.05). A significant difference was shown between the four groups at 1 mm (p = 0.0116), whereas similar results were observed at 5 mm (p = 0.20). WVC allowed better diffusion for both sealers at 1 mm (p = 0.01) and 5 mm (p = 0.034). The maximum penetration of the Bio-C and HiFlow sealers was more important at 5 mm with the two obturation techniques. Within the limitations of this study, WVC enhanced the penetration of calcium silicate-based sealers into the dentinal tubules in comparison with the SC technique at both levels.
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Affiliation(s)
- Diana Eid
- Department of Endodontics, Faculty of Dentistry, Saint Joseph University, Beirut BP 17-5208, Lebanon; (D.E.); (I.K.); (A.N.)
| | - Etienne Medioni
- Micoralis Laboratory EA7354, Faculty of Dentistry, University of Nice Sophia Antipolis, Pôle Odontologie du CHU de NICE, Hopital St. Roch, 06000 Nice, France;
| | - Gustavo De-Deus
- Department of Endodontics, School of Dentistry, UNIGRANRIO—Universidade Grande Rio, 1.160-jardim 25 DE Agosto, 22061-030 Rio de Janeiro, Brazil;
| | - Issam Khalil
- Department of Endodontics, Faculty of Dentistry, Saint Joseph University, Beirut BP 17-5208, Lebanon; (D.E.); (I.K.); (A.N.)
| | - Alfred Naaman
- Department of Endodontics, Faculty of Dentistry, Saint Joseph University, Beirut BP 17-5208, Lebanon; (D.E.); (I.K.); (A.N.)
| | - Carla Zogheib
- Department of Endodontics, Faculty of Dentistry, Saint Joseph University, Beirut BP 17-5208, Lebanon; (D.E.); (I.K.); (A.N.)
- Correspondence:
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Ten Years of Micro-CT in Dentistry and Maxillofacial Surgery: A Literature Overview. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10124328] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Micro-computed tomography (micro-CT) is a consolidated imaging technology allowing non-destructive three-dimensional (3D) qualitative and quantitative analysis by the observation of microstructures with high resolution. This paper aims at delivering a structured overview of literature about studies performed using micro-CT in dentistry and maxillofacial surgery (MFS) by analyzing the entire set of articles to portray the state of the art of the last ten years of scientific publications on the topic. It draws the scenario focusing on biomaterials, in vitro and in/ex vivo applications, bone structure analysis, and tissue engineering. It confirms the relevance of the micro-CT analysis for traditional research applications and mainly in dentistry with respect to MFS. Possible developments are discussed in relation to the use of the micro-CT combined with other, traditional, and not, techniques and technologies, as the elaboration of 3D models based on micro-CT images and emerging numerical methods. Micro-CT results contribute effectively with whose ones obtained from other techniques in an integrated multimethod approach and for multidisciplinary studies, opening new possibilities and potential opportunities for the next decades of developments.
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