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Barbosa DAF, Kurita LM, Silva PGDB, Vieira AF, Teixeira RC, Menezes Pimenta AVD, Chaves FN, Neves FS, Carvalho FSR, Costa FWG. Injury Risk Estimation in Mandible-Related Surgical Procedures: A CBCT Study Based on Vital Interforaminal Anatomical Structures. J ORAL IMPLANTOL 2024; 50:254-259. [PMID: 38839066 DOI: 10.1563/aaid-joi-d-22-00199] [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] [Indexed: 06/07/2024]
Abstract
The mandibular interforaminal region has been considered safe for surgical procedures; nevertheless, the risk of injury to neurovascular structures, such as the mental foramen (MF) and its related structures (anterior loop [AL] and lingual foramina [LF]) should not be overlooked. The study aimed to evaluate the relative risk of injury to these structures during surgical procedures in the anterior region of the mandible based on cone-beam computed tomography (CBCT) scans. A retrospective cross-sectional and observational study was performed on 250 CBCTs from adults (18-69 years) with dentate jaws. Linear measurements of the MF, AL, and LF were evaluated to estimate the risk of injury to these structures during chin-related surgical procedures. The most frequent distance between the base of the mandible (BM) and MF was 8 mm (30.2%). In addition, 20.4% of the CTs had 6 mm from the vestibular cortical bone to the LF. The commonly found measurement from LF to the apex of the nearest tooth was 7 mm (24.0%); 64.2% of the CTs showed a 2-mm distance between the most distal point of the dental implant site to the most anterior point of the AL. Safety distances for genioplasty techniques (MF to mandible base > 6 mm, 96.6% [CI 95%, 95.0%-98.2%]) were observed. Considering the 5-mm cut-off point between the lower limit of a hypothetical bone graft and the chin, 65.4% (CI 95%, 58.9%-71.9%) of CTs were within this distance. Regarding the safety margin of 8 mm, 85.6% (CI 95%, 80.8%-90.4%) were up to this value. This study found safety margins for genioplasty and chin bone grafting surgical techniques that adopt a 5-mm cut-off point. Further similar studies assessing other surgical methods and employing larger samples from different geographical origins may contribute to this field of investigation.
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Affiliation(s)
| | - Lúcio Mitsuo Kurita
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | - Alessandra Fragoso Vieira
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil
| | | | | | - Filipe Nobre Chaves
- Division of Oral Diagnosis, School of Dentistry, Federal University of Ceará, Campus Sobral, Sobral, Ceará, Brazil
| | | | | | - Fábio Wildson Gurgel Costa
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Federal University of Ceará, Fortaleza, Ceará, Brazil
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Hadilou M, Gholami L, Ghojazadeh M, Emadi N. Prevalence and extension of the anterior loop of the mental nerve in different populations and CBCT imaging settings: A systematic review and meta-analysis. Imaging Sci Dent 2022; 52:141-153. [PMID: 35799963 PMCID: PMC9226233 DOI: 10.5624/isd.20220001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 03/24/2022] [Accepted: 03/26/2022] [Indexed: 11/18/2022] Open
Abstract
Purpose Materials and Methods Results Conclusion
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Affiliation(s)
- Mahdi Hadilou
- Student Research Committee, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Gholami
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, Canada
| | - Morteza Ghojazadeh
- Research Center for Evidence Based Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Naghmeh Emadi
- Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Vasil'ev YL, Dydykin SS, Saleev RA, Saleeva GT, Velichko EV. [Terminological and debatable issues of the intraosseous organization of the anterior part of the mandible]. STOMATOLOGII︠A︡ 2021; 100:96-101. [PMID: 34752043 DOI: 10.17116/stomat202110005196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the scientific literature, one can find conflicting assumptions about the presence of «proper mental bone» and «upper and lower lingual canals», which make up a separate ossified area in the chin of the mandible and the system of blood supply and innervation. However, calling these lesions «lingual canals» or «incisal canals», as is often found in various articles, is incorrect based on the position of International Anatomical Terminology. This is due to the lack of topographic reference in the term, which can equally be understood as the canal of the tongue, the neurovascular bundle of the same name, and the root canal system of the teeth of the lower jaw and can also be associated with the maxilla. We searched for information in English, without time limits, in the PubMed Central database, and searched on Google and analyzed the bibliography, relevant studies and reviews. The selection of publications was carried out by request «mental spine canals», 58 articles were found in PubMed, of which 21 were relevant. For the analysis, publications were selected that described in detail the anatomical, clinical and radiological features of the structure of the anterior part of the mandible. As a result of previous studies and the study of literature data, the intraosseous structures of the anterior part of the lower jaw were refined and classified, which solve not only terminological disputes, but also are important clinical guidelines for endodontic treatment, dental implantation and local anesthesia.
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Affiliation(s)
- Yu L Vasil'ev
- First Moscow State Medical University named after I.M. Sechenov, Moscow, Russia
| | - S S Dydykin
- First Moscow State Medical University named after I.M. Sechenov, Moscow, Russia
| | - R A Saleev
- Kazan State Medical University, Kazan, Russia
| | - G T Saleeva
- Kazan State Medical University, Kazan, Russia
| | - E V Velichko
- Russian Peoples' Friendship University, Moscow, Russia
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Kunzendorf B, Naujokat H, Wiltfang J. Indications for 3-D diagnostics and navigation in dental implantology with the focus on radiation exposure: a systematic review. Int J Implant Dent 2021; 7:52. [PMID: 34041613 PMCID: PMC8155130 DOI: 10.1186/s40729-021-00328-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/18/2021] [Indexed: 11/23/2022] Open
Abstract
Background Dental implants are a common restorative method used to replace missing teeth. Implant placement techniques guided by three-dimensional imaging and navigation are becoming more widely available. Objective The present review focused on the following questions: 1. What are the advantages and disadvantages of 2-D versus 3-D imaging in dental implantology? 2. What are the advantages and disadvantages of freehand implant placement in comparison with navigation-guided implant placement? Methods A systematic review was performed, based on the Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA) statement. The following libraries were searched for relevant literature: PubMed, Embase, Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften (AWMF) Online, and the Cochrane Library. The risk of bias was assessed using the Scottish Intercollegiate Guidelines Network (SiGN) checklist. A total of 70 studies were included after screening, and the evidence from these was gathered for review. Results Three-dimensional imaging is advantageous in terms of image quality, and it provides a distortion-free evaluation of the implant site. However, it is also associated with higher costs and increased radiation exposure. Dynamic and static navigation are equal in accuracy and are both more accurate compared with the freehand method. No benefit in terms of implant survival could be demonstrated within the first 5 years for any specific method. Discussion A panoramic X-ray with a reference body often provides sufficient imaging and is the primary method for two-dimensional imaging. Cone beam computed tomography with low-dose protocol settings should be used if three-dimensional imaging is needed. Navigational support should be considered in the event of especially complex cases. Conclusion The guidance technique used for implant placement should be decided on an individual basis. With the increasing availability of three-dimensional imaging, there should also be an increase in awareness of radiation exposure. Supplementary Information The online version contains supplementary material available at 10.1186/s40729-021-00328-9.
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Affiliation(s)
- Burkhard Kunzendorf
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Germany.
| | - Hendrik Naujokat
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Germany
| | - Jörg Wiltfang
- Department of Oral and Maxillofacial Surgery, University Hospital of Schleswig-Holstein, Campus Kiel, Arnold-Heller-Straße 3, 24105, Kiel, Germany
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Barbosa DAF, de Mendonça DS, de Carvalho FSR, Kurita LM, de Barros Silva PG, Neves FS, Costa FWG. Systematic review and meta-analysis of lingual foramina anatomy and surgical-related aspects on cone-beam computed tomography: a PROSPERO-registered study. Oral Radiol 2021; 38:1-16. [PMID: 33609258 DOI: 10.1007/s11282-021-00516-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/08/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE This study aimed to summarize the evidence regarding lingual foramen (LF) characteristics using cone-beam computed tomography (CBCT). MATERIALS AND METHODS A registered systematic review (#42,019,145,962) was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statements. An electronic search without date or language restrictions was performed in five databases, including grey literature (Google Scholar and ProQuest). The Meta-Analysis of Statistics Assessment and Review Instrument was used to evaluate the selected studies. RESULTS A total of 6641 articles were identified, and 26 studies (8255 CBCT scans) were selected after a three-step selection process. There was a female predominance, and age ranged between 10 and 93 years. A total of 4336 LFs were observed among men (n = 2042) and women (n = 2294). Of this LF-related sample, 43.5% of the studies were from Asia, followed by Europe (33.5%), North America (14%), and South America (9%). Different distances from the LF to the alveolar crest (11.04-20.4 mm), buccal (4.73-4.91 mm), and lingual (8.75 mm) cortices and the inferior border of the mandible (8.48-26.59 mm) were evaluated. CONCLUSION In summary, this systematic review found that LF is an anatomical structure with a high prevalence among the included studies (greater than 90%), regardless of the population evaluated. The occurrence of at least one LF was the most common pattern.
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Affiliation(s)
- Daniel Almeida Ferreira Barbosa
- Division of Oral Radiology, Programa de Pós-Graduação em Odontologia, Federal University of Ceará, Rua Monsenhor Furtado, 1273, Rodolfo Teófilo, CEP, Fortaleza, CE, 60430-355, Brazil.
| | - Diego Santiago de Mendonça
- Division of Oral Radiology, Programa de Pós-Graduação em Odontologia, Federal University of Ceará, Rua Monsenhor Furtado, 1273, Rodolfo Teófilo, CEP, Fortaleza, CE, 60430-355, Brazil
| | | | - Lúcio Mitsuo Kurita
- Division of Oral Radiology, Programa de Pós-Graduação em Odontologia, Federal University of Ceará, Rua Monsenhor Furtado, 1273, Rodolfo Teófilo, CEP, Fortaleza, CE, 60430-355, Brazil
| | | | | | - Fábio Wildson Gurgel Costa
- Division of Oral Radiology, Programa de Pós-Graduação em Odontologia, Federal University of Ceará, Rua Monsenhor Furtado, 1273, Rodolfo Teófilo, CEP, Fortaleza, CE, 60430-355, Brazil
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Vasil’ev Y, Paulsen F, Dydykin S. Anatomical and radiological features of the bone organization of the anterior part of the mandible. Ann Anat 2020; 231:151512. [DOI: 10.1016/j.aanat.2020.151512] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 02/23/2020] [Accepted: 03/10/2020] [Indexed: 10/24/2022]
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Annual review of selected scientific literature: A report of the Committee on Scientific Investigation of the American Academy of Restorative Dentistry. J Prosthet Dent 2020; 124:274-349. [PMID: 32811666 DOI: 10.1016/j.prosdent.2020.06.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 01/20/2023]
Abstract
This comprehensive review of the 2019 restorative dental literature is offered to inform busy dentists regarding remarkable publications and noteworthy progress made in the profession. Developed by the Scientific Investigation Committee of the American Academy of Restorative Dentistry, each author brings discipline-specific expertise to 1 of 8 sections of the report: (1) prosthodontics; (2) periodontics, alveolar bone, and peri-implant tissues; (3) implant dentistry; (4) dental materials and therapeutics; (5) occlusion and temporomandibular disorders; (6) sleep-related breathing disorders; (7) oral medicine and oral and maxillofacial surgery; and (8) dental caries and cariology. The report targets important information likely to influence day-to-day dental treatment decisions. Each review is not intended to stand alone but to update interested readers so that they may visit source material when greater detail is desired. As the profession moves toward evidence-based clinical decision-making, an incredible volume of potentially valuable dental literature continues to increase. It is the intention of this review and its authors to provide assistance in negotiating the extensive dental literature published in 2019. It is our hope that readers find this work useful in the clinical management of dental patients.
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Passia N, Oberbillig F, Goulioumis V, Naumova EA, Kern M, Arnold W. Three-Dimensional Reconstruction of the Genial Spinal Canal. Clin Anat 2019; 33:1102-1108. [PMID: 31688952 DOI: 10.1002/ca.23512] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 10/17/2019] [Accepted: 10/26/2019] [Indexed: 01/01/2023]
Abstract
The aim of this anatomical study was to investigate the genial spinal canal histologically and to reconstruct it three-dimensionally to improve understanding of its anatomy and to reveal any differences between dentate and edentulous specimens. Two tissue blocks from the mandible between the left and right second incisors, one dentate and one edentulous, were fixed in 4.5% formaldehyde, decalcified and embedded in paraffin. Serial histological sections were prepared, stained with Azan and examined microscopically. Additionally, three-dimensional models of the blocks were reconstructed using microphotographs of the sections. The genial spinal canal in the dentate specimen contained a neurovascular bundle, which branched into a nerve innervating the incisor and a neurovascular bundle, whereas that in the edentulous specimen contained some nerves for vestibular gingival innervation and a vascular bundle. The results suggest differences in the genial spinal canal between dentate and edentulous mandibles. Further research is needed to confirm this finding. Clin. Anat., 33:1102-1108, 2020. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Nicole Passia
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany
| | - Franziska Oberbillig
- Department of Biological and Material Sciences in Dentistry, Faculty of Health, School of Dentistry, Witten/Herdecke University, Witten, Germany
| | - Vlasios Goulioumis
- Department of Operative and Preventive Dentistry, Faculty of Health, School of Dentistry, Witten/Herdecke University, Witten, Germany
| | - Ella A Naumova
- Department of Biological and Material Sciences in Dentistry, Faculty of Health, School of Dentistry, Witten/Herdecke University, Witten, Germany
| | - Matthias Kern
- Department of Prosthodontics, Propaedeutics and Dental Materials, School of Dentistry, Christian-Albrechts University, Kiel, Germany
| | - Wolfgang Arnold
- Department of Biological and Material Sciences in Dentistry, Faculty of Health, School of Dentistry, Witten/Herdecke University, Witten, Germany
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