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Gilligan G, Garola F, Piemonte E, Leonardi N, Panico R, Warnakulasuriya S. Lichenoid proliferative leukoplakia, lichenoid lesions with evolution to proliferative leukoplakia or a continuum of the same precancerous condition? A revised hypothesis. J Oral Pathol Med 2020; 50:129-135. [PMID: 33225541 DOI: 10.1111/jop.13133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 11/05/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Multiple white plaques of the oral mucosa are usually associated with potentially malignant disorders such as oral lichen planus, oral lichenoid lesions and proliferative verrucous leukoplakia. Previous studies in the current literature describe a potential clinical overlap in these entities. The aim of this study is to review clinicopathological and evolutive features of these Oral Potentially Malignant Disorders highlighting the dynamic changes of diagnoses. DISCUSSION It was previously hypothesized that a subset of patients with oral lichen planus or oral lichenoid diagnosis, could develop multiple white plaques during the natural history of the disease, fulfilling diagnostic criteria for proliferative verrucous leukoplakia. Consequently, these entities could, under certain conditions, obey a continuum of the same precancerous condition in the context of the field cancerization theory, increasing the risk of malignant transformation. Nevertheless, there is limited scientific evidence concerning this issue. CONCLUSION Further studies are needed to understand the biological and evolutive features of the link between these oral potentially malignant disorders. Regardless of its diagnosis, these patients with multifocal white lesions must be carefully monitored to detect early malignant transformation.
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Affiliation(s)
- Gerardo Gilligan
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Federico Garola
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Eduardo Piemonte
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Nicolás Leonardi
- Oral Medicine Department, Dentistry School, Health Sciences Faculty, Universidad Católica de Córdoba, Córdoba, Argentina
| | - René Panico
- Oral Medicine Department, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Saman Warnakulasuriya
- Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, WHO Collaborating Centre for Oral Cancer, London, UK
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Priyadarsini S, Mukherjee S, Mishra M. Nanoparticles used in dentistry: A review. J Oral Biol Craniofac Res 2018; 8:58-67. [PMID: 29556466 PMCID: PMC5854556 DOI: 10.1016/j.jobcr.2017.12.004] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/13/2017] [Accepted: 12/06/2017] [Indexed: 01/24/2023] Open
Abstract
Nanotechnology is widely used in our day to day life including its use in medicine. Using nanotechnology, it is easy to analyze and manipulate atoms, chemical bonds and molecules present between various compounds. Nanotechnology is used in the dental field as nano dentistry. While choosing the nanoparticle for the use in the field of nano dentistry its chemical, physical, along with the biological aspect of nanostructures are taken into account. Often various atoms or molecules are added to form the functional structure. Nanostructures are used in innovations or diagnosis of dentistry. Some nanoparticles are used for oral disease preventive drugs, prostheses and for teeth implantation. Nanomaterials further deliver oral fluid or drugs, preventing and curing some oral disease (oral cancer) and maintain oral health care up to a high extent. This review summarises the use of various widely used nanoparticle in the field of dentistry.
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Affiliation(s)
| | | | - Monalisa Mishra
- Neural Developmental Biology Lab, Department of Life Science, National Institute of Technology, Rourkela, 769008, Odisha, India
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Darling MR, Su N, Masen S, Kwon P, Fortino D, McKerlie T, Grushka M. Geographic tongue: assessment of peripheral nerve status, Langerhans cell, and HLA-DR expression. Oral Surg Oral Med Oral Pathol Oral Radiol 2017; 124:371-377.e1. [PMID: 28757081 DOI: 10.1016/j.oooo.2017.05.516] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 05/25/2017] [Accepted: 05/30/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVES The objectives of this study were to determine whether geographic tongue (GT) is an antigen-driven condition by assessing Langerhans cell numbers and the expression of human leukocyte antigen (HLA)-DP, -DQ, and -DR in the epithelium of GT and to assess peripheral nerve status for any possible damage/injury association by quantifying neurite area in connective tissue in GT. STUDY DESIGN Randomly selected samples of GT were examined by using routine immunoperoxidase staining methods to S100 protein, neurofilament, CD1a, and HLA class II. The Student t test and Mann-Whitney U test were used to assess statistical significance. RESULTS Langerhans cell numbers were found to be increased in GT. HLA expression was also seen in Langerhans cells and inflammatory cells and in the spinous layer and parabasal epithelial cells in 2 samples of GT. Total nerve tissue, based on area measurements, was not significantly different between GT and control tissues. CONCLUSIONS The increase in Langerhans cells suggests that GT is a condition that is likely driven by an unknown external antigen. Peripheral nerve damage was not apparent, suggesting that this is not a mechanism whereby patients with GT become symptomatic.
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Affiliation(s)
- Mark Roger Darling
- Division of Oral Pathology, Department of Pathology, Schulich School of Medicine and Dentistry, Western University, London, Canada.
| | - Nan Su
- Private practice, Toronto, Ontario, Canada
| | - Sherry Masen
- Division of Oral Pathology, Department of Pathology, Schulich School of Medicine and Dentistry, Western University, London, Canada
| | - Paul Kwon
- Division of Oral Pathology, Department of Pathology, Schulich School of Medicine and Dentistry, Western University, London, Canada
| | - Daniel Fortino
- Division of Oral Pathology, Department of Pathology, Schulich School of Medicine and Dentistry, Western University, London, Canada
| | - Taylor McKerlie
- Division of Oral Pathology, Department of Pathology, Schulich School of Medicine and Dentistry, Western University, London, Canada
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Herrera D, Alonso B, de Arriba L, Santa Cruz I, Serrano C, Sanz M. Acute periodontal lesions. Periodontol 2000 2015; 65:149-77. [PMID: 24738591 DOI: 10.1111/prd.12022] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/24/2012] [Indexed: 11/30/2022]
Abstract
This review provides updates on acute conditions affecting the periodontal tissues, including abscesses in the periodontium, necrotizing periodontal diseases and other acute conditions that cause gingival lesions with acute presentation, such as infectious processes not associated with oral bacterial biofilms, mucocutaneous disorders and traumatic and allergic lesions. A periodontal abscess is clinically important because it is a relatively frequent dental emergency, it can compromise the periodontal prognosis of the affected tooth and bacteria within the abscess can spread and cause infections in other body sites. Different types of abscesses have been identified, mainly classified by their etiology, and there are clear differences between those affecting a pre-existing periodontal pocket and those affecting healthy sites. Therapy for this acute condition consists of drainage and tissue debridement, while an evaluation of the need for systemic antimicrobial therapy will be made for each case, based on local and systemic factors. The definitive treatment of the pre-existing condition should be accomplished after the acute phase is controlled. Necrotizing periodontal diseases present three typical clinical features: papilla necrosis, gingival bleeding and pain. Although the prevalence of these diseases is not high, their importance is clear because they represent the most severe conditions associated with the dental biofilm, with very rapid tissue destruction. In addition to bacteria, the etiology of necrotizing periodontal disease includes numerous factors that alter the host response and predispose to these diseases, namely HIV infection, malnutrition, stress or tobacco smoking. The treatment consists of superficial debridement, careful mechanical oral hygiene, rinsing with chlorhexidine and daily re-evaluation. Systemic antimicrobials may be used adjunctively in severe cases or in nonresponding conditions, being the first option metronidazole. Once the acute disease is under control, definitive treatment should be provided, including appropriate therapy for the pre-existing gingivitis or periodontitis. Among other acute conditions affecting the periodontal tissues, but not caused by the microorganisms present in oral biofilms, infectious diseases, mucocutaneous diseases and traumatic or allergic lesions can be listed. In most cases, the gingival involvement is not severe; however, these conditions are common and may prompt an emergency dental visit. These conditions may have the appearance of an erythematous lesion, which is sometimes erosive. Erosive lesions may be the direct result of trauma or a consequence of the breaking of vesicles and bullae. A proper differential diagnosis is important for adequate management of the case.
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Lombardi N, Rossi V, Delia S, Tovaru S, Passera D, Munari A, Varacca A. Lesioni lichenoidi in età pediatrica: due casi clinici di pazienti in terapia ortodontica. DENTAL CADMOS 2014. [DOI: 10.1016/s0011-8524(14)70134-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chow SKW. Management of chronic urticaria in Asia: 2010 AADV consensus guidelines. Asia Pac Allergy 2012; 2:149-60. [PMID: 22701866 PMCID: PMC3345329 DOI: 10.5415/apallergy.2012.2.2.149] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 04/04/2012] [Indexed: 12/15/2022] Open
Abstract
This guideline is a result of a consensus reached during the 19th Asian-Australasian Regional Conference of Dermatology by the Asian Academy of Dermatology and Venereology Study Group in collaboration with the League of Asian Dermatological Societies in 2010. Urticaria has a profound impact on the quality of life in Asia and the need for effective treatment is required. In line with the EAACI/GA(2)LEN/EDF/WAO guideline for the management of urticaria the recommended first-line treatment is new generation, non-sedating H1-antihistamines. If standard dosing is ineffective, increasing the dosage up to four-fold is recommended. For patients who do not respond to a four-fold increase in dosage of non-sedating H1-antihistamines, it is recommended that therapies such as H2-antihistamine, leukotriene antagonist, and cyclosporine A should be added to the antihistamine treatment. In the choice of second-line treatment, both their costs and risk/benefit profiles are the most important considerations.
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Affiliation(s)
- Steven K W Chow
- The KL Skin Centre, Pantai Hospital Kuala Lumpur, Kuala Lumpur, 59100, Malaysia
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Goregen M, Melikoglu M, Miloglu O, Erdem T. Predisposition of allergy in patients with benign migratory glossitis. ACTA ACUST UNITED AC 2010; 110:470-4. [PMID: 20674406 DOI: 10.1016/j.tripleo.2010.04.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2010] [Revised: 04/12/2010] [Accepted: 04/21/2010] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The purpose of this study was to investigate the presence of allergy in patients with benign migratory glossitis (BMG) using patch and prick tests. PATIENTS AND METHODS Eighty patients (40 BMG and 40 healthy controls) received patch and prick tests. If at least one test result was positive, patients were considered to be allergic. RESULTS The prick test was positive in 10 patients (25.0%) of the study group and in 4 patients (10.0%) of the control group. The patch test was positive in 12 patients (30.0%) of the study group and in 6 patients (15.0%) of the control group. When results of both tests were evaluated together, the study group showed a positive rate of 47.5% (n = 19), whereas the control group showed a positive rate of 22.5% (n = 9) (P = .02). CONCLUSION Our results revealed that a combination of prick and patch tests can significantly enhance the diagnostic accuracy of predisposition of allergy in patients with BMG.
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Affiliation(s)
- Mustafa Goregen
- Department of Oral Diagnosis and Radiology, Faculty of Dentistry, Ataturk University, Erzurum, Turkey.
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An unusual case of immediate hypersensitivity reaction associated with an amalgam restoration. Br Dent J 2008; 205:547-50. [DOI: 10.1038/sj.bdj.2008.981] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/20/2008] [Indexed: 11/09/2022]
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Abstract
With the long history of use of many materials in dental surgery, biocompatibility concerns are not as great a concern as other issues, such as long-term degradation, mechanical strength problems, and prevention of secondary caries. It is important, however, not to forget that the potential exists for adverse tissue responses to synthetic materials used in repair, augmentation, and repair of natural tissue structures. As new materials and repair techniques become available and the sophistication of cell-level and subcellular response evaluations increases, the concerns to be addressed and the methods to be used may change. The advent of tissue-engineered medical products may mean that new questions must be addressed.
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Affiliation(s)
- Kenneth R St John
- Department of Biomedical Materials Science, University of Mississippi Medical Center School of Dentistry, 2500 North State Street, Jackson 39216, USA.
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Pigatto PD, Cesarani A, Barozzi S, Guzzi G. Positive response to nickel and azathioprine treatment. J Eur Acad Dermatol Venereol 2008; 22:891. [DOI: 10.1111/j.1468-3083.2007.02493.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND Recalcitrant gingival erythematous lichen planus/lichenoid lesions comprise a considerable therapeutic problem. The objective of this study was to evaluate the therapeutic effect of grafting keratinized oral palatal mucosa to the sites of gingival lichen. METHODS In 12 patients 20 grafts were transplanted to buccal gingival lesions. Mean age of the patients was 59.8 +/- 7.1 years (range 46-71 years). The mean observation time was 32 +/- 32.7 months (range 5-97 months). RESULTS On a 4-point clinical grade scale (0-3), 12 (60%) transplants showed complete healing grade 3, six (30%) grade 2 and two (10%) grade 1. CONCLUSIONS Using oral mucosal grafts from the palatal mucosa for the treatment of recalcitrant erythematous gingival lichen planus/lichenoid lesions seems to be a promising treatment modality.
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Affiliation(s)
- Tony Axéll
- Maxillofacial Unit, Halmstad Hospital, Halmstad, Sweden.
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Lodi G, Scully C, Carrozzo M, Griffiths M, Sugerman PB, Thongprasom K. Current controversies in oral lichen planus: report of an international consensus meeting. Part 2. Clinical management and malignant transformation. ACTA ACUST UNITED AC 2006; 100:164-78. [PMID: 16037774 DOI: 10.1016/j.tripleo.2004.06.076] [Citation(s) in RCA: 260] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Despite recent advances in understanding the immunopathogenesis of oral lichen planus (LP), the initial triggers of lesion formation and the essential pathogenic pathways are unknown. It is therefore not surprising that the clinical management of oral LP poses considerable difficulties to the dermatologist and the oral physician. A consensus meeting was held in France in March 2003 to discuss the most controversial aspects of oral LP. Part 1 of the meeting report focused on (1) the relationship between oral LP and viral infection, with special emphasis on hepatitis C virus (HCV), and (2) oral LP pathogenesis, in particular the immune mechanisms resulting in lymphocyte infiltration and keratinocyte apoptosis. Part 2 focuses on patient management and therapeutic approaches and includes discussion on malignant transformation of oral LP.
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Affiliation(s)
- Giovanni Lodi
- Department of Medicine, Surgery, and Dentistry, University of Milan, Italy.
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Menni S, Boccardi D, Crosti C. Painful geographic tongue (benign migratory glossitis) in a child. J Eur Acad Dermatol Venereol 2005; 18:737-8. [PMID: 15482313 DOI: 10.1111/j.1468-3083.2004.01032.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Schenck K, Kiyono H, Helgeland K, Steinsvoll S, Taylor B. Immunologic tolerance: the good, the bad, and the ugly. Acta Odontol Scand 2001; 59:297-300. [PMID: 11762300 DOI: 10.1080/000163501750541165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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