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Zhu Y, Zhang Y, Jiang Y, Cai H, Liang J, Li H, Wang C, Hou J. Retinoic Acid Upregulates METTL14 Expression and the m 6A Modification Level to Inhibit the Proliferation of Embryonic Palate Mesenchymal Cells in Cleft Palate Mice. Int J Mol Sci 2024; 25:4538. [PMID: 38674123 PMCID: PMC11050043 DOI: 10.3390/ijms25084538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/09/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Cleft palate only (CPO) is one of the most common craniofacial birth defects. Environmental factors can induce cleft palate by affecting epigenetic modifications such as DNA methylation, histone acetylation, and non-coding RNA. However, there are few reports focusing on the RNA modifications. In this study, all-trans retinoic acid (atRA) was used to simulate environmental factors to induce a C57BL/6J fetal mouse cleft palate model. Techniques such as dot blotting and immunofluorescence were used to find the changes in m6A modification when cleft palate occurs. RNA-seq and KEGG analysis were used to screen for significantly differentially expressed pathways downstream. Primary mouse embryonic palate mesenchymal (MEPM) cells were successfully isolated and used for in vitro experimental verification. We found that an increased m6A methylation level was correlated with suppressed cell proliferation in the palatine process mesenchyme of cleft palate mice. This change is due to the abnormally high expression of m6A methyltransferase METTL14. When using siRNAs and the m6A methyltransferase complex inhibitor SAH to interfere with the expression or function of METTL14, the teratogenic effect of atRA on primary cells was partially alleviated. In conclusion, METTL14 regulates palatal mesenchymal cell proliferation and cycle-related protein expression relies on m6A methylation modification, affecting the occurrence of cleft palate.
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Affiliation(s)
- Yue Zhu
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yadong Zhang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Yaoqi Jiang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hongshi Cai
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jianfeng Liang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Hongyu Li
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Cheng Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
| | - Jinsong Hou
- Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China; (Y.Z.); (Y.Z.); (Y.J.); (H.C.); (J.L.); (H.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China
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Lopes-Santos G, Marques NGDO, Tjioe KC, Oliveira DT. Clinical behavior of recurrent pleomorphic adenoma in the palate: a systematic review. Acta Cir Bras 2024; 39:e390824. [PMID: 38422328 PMCID: PMC10911496 DOI: 10.1590/acb390824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 11/28/2023] [Indexed: 03/02/2024] Open
Abstract
PURPOSE This systematic review analyzed the clinical behavior and odds of malignancy of the palatal recurrent pleomorphic adenomas. METHODS Systematic review of patients with recurrent pleomorphic adenoma arising in the palate. Database search: MEDLINE, Scopus, Web of Science, Cochrane, EMBASE, Virtual Health Library, Google Scholar, and OpenGrey. A binomial logistic regression was performed to assess the odds of detecting recurrence five, 10 and 20 years after the treatment of primary tumor. RESULTS Thirteen studies (n = 18 patients) out of 336 were included. The recurrent pleomorphic adenoma in palate was more common in females (61.6%), average age was 49 years old (range 9-73 years old). Four patients progressed to malignant transformation. The odds ratio (OR) of detecting a recurrence at 10 (OR = 5.57; 95% confidence interval - 95%CI 1.13-27.52), and 20 years (OR = 18.78; 95%CI 3.18-110.84) after treatment of primary pleomorphic adenoma was significantly higher than at one-year follow-up. CONCLUSIONS The recurrence of pleomorphic adenoma in palate remains a rare event of late occurrence. It mainly affects middle-aged female and carries a risk of malignant transformation. Although uncommon, patients with palatal pleomorphic adenoma should be warned about the possibility of recurrence or malignant transformation of tumor at advanced ages.
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Affiliation(s)
- Gabriela Lopes-Santos
- Universidade de São Paulo – Faculdade de Odontologia de Bauru – Departamento de Cirurgia, Estomatologia, Patologia e Radiologia – Bauru (SP) – Brazil
| | - Najara Gomes de Oliveira Marques
- Universidade de São Paulo – Faculdade de Odontologia de Bauru – Departamento de Cirurgia, Estomatologia, Patologia e Radiologia – Bauru (SP) – Brazil
| | - Kellen Cristine Tjioe
- Augusta University – Georgia Cancer Center – Augusta (GA) – United States of America
| | - Denise Tostes Oliveira
- Universidade de São Paulo – Faculdade de Odontologia de Bauru – Departamento de Cirurgia, Estomatologia, Patologia e Radiologia – Bauru (SP) – Brazil
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3
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Mustari AP, Chatterjee D, Vinay K. Destructive Facial Plaque and Palatal Perforation in a Middle-Aged Woman. JAMA Dermatol 2023; 159:1272-1273. [PMID: 37819672 DOI: 10.1001/jamadermatol.2023.3460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/13/2023]
Abstract
A woman in her 30s had asymptomatic erythematous scaly plaques over the face and proximal extremities. The lesions started as a erythematous papule on the face, which had progressed to larger plaques within 10 years. What is your diagnosis?
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Affiliation(s)
- Akash P Mustari
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Debajyoti Chatterjee
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Keshavamurthy Vinay
- Department of Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Silveira HA, Ragusa Silva PV, Pimentel BG, Nogueira GM, Chahud F, Brunaldi MO, León JE. Lymphomatoid Papulosis "Type E" Affecting the Palate: A Detailed Case Report and Review of Literature. Am J Dermatopathol 2023; 45:326-329. [PMID: 36939130 DOI: 10.1097/dad.0000000000002405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/21/2023]
Abstract
ABSTRACT Lymphomatoid papulosis (LyP) belongs to the spectrum of primary cutaneous CD30 + lymphoproliferative disorders, characterized by chronic, recurrent, self-healing papules, small nodules, or ulcers. The clinicopathological features of LyP can mimic overt lymphomas. To date, about 27 intraoral LyP cases have been reported. Of them, only 2 cases were diagnosed as angioinvasive LyP (type E). Herein, we report a 24-year-old Brazilian man who presented a large ulcerated lesion on the hard palate with rapid evolution. Remarkably, there was no involvement of the skin or other mucous membranes. Microscopy revealed a lymphoid infiltrate constituted by medium-sized to large atypical cells, with angiocentric and angiodestructive features. The atypical cells showed immunopositivity for CD3, CD8, CD30, CD56, granzyme B, perforin, and focally for MUM1/IRF4. Ki-67 highlighted almost all atypical lymphoid cells, whereas EBER1/2 was negative. After 2 months of follow-up, the lesion healed completely. Although rare, LyP type E should be included in the differential diagnosis of oral ulcers.
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Affiliation(s)
- Heitor Albergoni Silveira
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil; and
| | - Paula Verona Ragusa Silva
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental School, São Paulo State University (UNESP), Araraquara, Brazil
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil; and
| | - Bruna Gonçalves Pimentel
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil; and
| | - Gustavo Milhomens Nogueira
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School (FMRP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Fernando Chahud
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School (FMRP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Mariângela Ottoboni Brunaldi
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School (FMRP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Jorge Esquiche León
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil; and
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School (FMRP/USP), University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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5
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Leonardo TR, Chen L, Schrementi ME, Shi J, Marucha PT, Glass K, DiPietro LA. Transcriptional changes in human palate and skin healing. Wound Repair Regen 2023; 31:156-170. [PMID: 36571451 PMCID: PMC10006330 DOI: 10.1111/wrr.13068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/26/2022] [Accepted: 12/20/2022] [Indexed: 12/27/2022]
Abstract
Most human tissue injuries lead to the formation of a fibrous scar and result in the loss of functional tissue. One adult tissue that exhibits a more regenerative response to injury with minimal scarring is the oral mucosa. We generated a microarray gene expression dataset to examine the response to injury in human palate and skin excisional biopsies spanning the first 7 days after wounding. Differential expression analyses were performed in each tissue to identify genes overexpressed or underexpressed over time when compared to baseline unwounded tissue gene expression levels. To attribute biological processes of interest to these gene expression changes, gene set enrichment analysis was used to identify core gene sets that are enriched over the time-course of the wound healing process with respect to unwounded tissue. This analysis identified gene sets uniquely enriched in either palate or skin wounds and gene sets that are enriched in both tissues in at least one time point after injury. Finally, a cell type enrichment analysis was performed to better understand the cell type distribution in these tissues and how it changes over the time course of wound healing. This work provides a source of human wound gene expression data that includes two tissue types with distinct regenerative and scarring phenotypes.
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Affiliation(s)
- Trevor R Leonardo
- Department of Microbiology and Immunology, University of Illinois Chicago, Chicago, Illinois, USA
- Department of Periodontics, Center for Wound Healing and Tissue Regeneration, University of Illinois Chicago, Chicago, Illinois, USA
| | - Lin Chen
- Department of Periodontics, Center for Wound Healing and Tissue Regeneration, University of Illinois Chicago, Chicago, Illinois, USA
| | - Megan E Schrementi
- Department of Science and Health, DePaul University, Chicago, Illinois, USA
| | - Junhe Shi
- Department of Periodontics, Center for Wound Healing and Tissue Regeneration, University of Illinois Chicago, Chicago, Illinois, USA
- National Medical Products Administration Key Laboratory for Clinical Research and Evaluation of Traditional Chinese Medicine, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Phillip T Marucha
- Department of Periodontics, College of Dentistry, Oregon Health and Sciences University, Portland, Oregon, USA
| | - Kimberly Glass
- Channing Division of Network Medicine,Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
- Department of Biostatistics, Harvard Chan School of Public Health, Boston, Massachusetts, USA
| | - Luisa A DiPietro
- Department of Periodontics, Center for Wound Healing and Tissue Regeneration, University of Illinois Chicago, Chicago, Illinois, USA
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6
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Won J, Clark H. Palatal keratosis associated with reverse (or "backwards") smoking (PKARS). N Z Med J 2022; 135:104-107. [PMID: 36137771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Palatal mucosal changes secondary to smoking habit have been recognised since at least the 19th century. Smoker's palate, or nicotinic stomatitis is associated with habitual cigar or pipe smoking, regular consumption of thermally hot beverages and more recently has been identified in those who vape. It is considered of negligible malignant transformation risk, typically resolving on habit cessation. However a variant, palatal keratosis associated with reverse smoking (PKARs), is recognised as an established oral potentially malignant disorder. Reverse smoking involves smoking the lit end of the cigarette intraorally and the condition may result in increased incidence of palatal squamous cell carcinoma development. We highlight a case to create awareness of both this unusual smoking habit, and the palate as an overlooked site in oral cancer screening.
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Affiliation(s)
- John Won
- Oral Medicine Registrar, Hospital & Specialist Dentistry, Te Whatu Ora Te Toka Tumai Auckland, New Zealand
| | - Hadleigh Clark
- Oral Medicine Specialist, Hospital & Specialist Dentistry, Te Whatu Ora Te Toka Tumai Auckland, New Zealand
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7
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Kano S, Higashihori N, Thiha P, Takechi M, Iseki S, Moriyama K. The role of the histone methyltransferase SET domain bifurcated 1 during palatal development. Biochem Biophys Res Commun 2022; 598:74-80. [PMID: 35151207 DOI: 10.1016/j.bbrc.2022.01.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/26/2022] [Accepted: 01/30/2022] [Indexed: 11/26/2022]
Abstract
The histone methyltransferase SET domain bifurcated 1 (SETDB1) catalyzes the trimethylation of lysine 9 of histone H3, thereby regulating gene expression. In this study, we used conditional knockout mice, where Setdb1 was deleted only in neural crest cells (Setdb1fl/fl,Wnt1-Cre + mice), to clarify the role of SETDB1 in palatal development. Setdb1fl/fl,Wnt1-Cre + mice died shortly after birth due to a cleft palate with full penetration. Reduced palatal mesenchyme proliferation was seen in Setdb1fl/fl,Wnt1-Cre + mice, which might be a possible mechanism of cleft palate development. Quantitative RT-PCR and in situ hybridization showed that expression of the Pax9, Bmp4, Bmpr1a, Wnt5a, and Fgf10 genes, known to be important for palatal development, were markedly decreased in the palatal mesenchyme of Setdb1fl/fl,Wnt1-Cre + mice. Along with these phenomena, SMAD1/5/9 phosphorylation was decreased by the loss of Setdb1. Our results demonstrated that SETDB1 is indispensable for palatal development partially through its proliferative effect. Taken together with previous reports that PAX9 regulates BMP signaling during palatal development which implies that loss of Setdb1 may be involved in the cleft palate development by decreasing SMAD-dependent BMP signaling through Pax9.
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Affiliation(s)
- Sakurako Kano
- Maxillofacial Orthognathics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Norihisa Higashihori
- Maxillofacial Orthognathics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan.
| | - Phyo Thiha
- Maxillofacial Orthognathics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Masaki Takechi
- Maxillofacial Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Sachiko Iseki
- Molecular Craniofacial Embryology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
| | - Keiji Moriyama
- Maxillofacial Orthognathics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8549, Japan
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8
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Panda S, Misra SR, Champatyray S, Mohanty N. Amelanotic melanoma of the palate: report of a case. BMJ Case Rep 2022; 15:e249027. [PMID: 35354566 PMCID: PMC8968510 DOI: 10.1136/bcr-2022-249027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2022] [Indexed: 11/03/2022] Open
Abstract
Primary amelanotic melanoma is an infrequent occurrence in the oral cavity. Owing to the high rate of local invasion and distant metastasis, oral amelanotic melanoma (OAM) carries a very poor prognosis. The absence of pathognomonic clinical and routine histological features in OAM is the reason for diagnosticdelay, which further worsens the prognosis. This case report discusses the masquerading nature of OAM that was clinically and histologically mimicking several malignant neoplasms. This case also demonstrates the poor prognosis of OAM. The objective of presenting this case is that the diagnostic delay of OAM can be avoided through enhanced clinical awareness and subsequent appropriate immunohistochemical investigations, in addition to the routine H&E-stained histopathological evaluation.
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Affiliation(s)
- Swagatika Panda
- Oral and Maxillofacial Pathology & Microbiology, Institute of Dental Sciences, Siksha 'O' Anusandhan deemed to be University, Bhubaneswar, Odisha, India
| | - Satya Ranjan Misra
- Oral Medicine & Radiology, Institute of Dental Sciences, Siksha 'O' Ansuandhan deemed to be University, Bhubaneswar, India
| | - Sreepreeti Champatyray
- Oral and Maxillofacial Pathology & Microbiology, Institute of Dental Sciences, Siksha 'O' Anusandhan deemed to be University, Bhubaneswar, Odisha, India
| | - Neeta Mohanty
- Oral and Maxillofacial Pathology & Microbiology, Institute of Dental Sciences, Siksha 'O' Anusandhan deemed to be University, Bhubaneswar, Odisha, India
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9
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Georgaki M, Theofilou VI, Pettas E, Piperi E, Stoufi E, Panayiotidis P, Nikitakis NG. Blastoid Mantle Cell Lymphoma of the Palate: Report of a Rare Aggressive Entity and Review of the Literature. Head Neck Pathol 2021; 16:631-642. [PMID: 34716903 PMCID: PMC9187827 DOI: 10.1007/s12105-021-01391-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/22/2021] [Indexed: 11/25/2022]
Abstract
Mantle cell lymphoma (MCL) is a well-defined, non-Hodgkin lymphoma of B-cell origin displaying diverse morphological phenotypes and variable disease course. The World Health Organization recognizes two aggressive histopathologic variants of this type of lymphoma: pleomorphic and blastoid MCL. To date, only few cases of MCL affecting the oral cavity have been reported. Additionally, the involvement of the oral and maxillofacial area by aggressive MCL subsets is considered extremely rare with only two patients reported in the English language literature to the best of our knowledge. Herein, we describe a 69 year-old male with a prior history of MCL of the right lateral pharyngeal wall developing a recurrent lesion extending to the palatal mucosa as diffuse ulceration and exhibiting histomorphological features of blastoid MCL. We also review the pertinent literature with emphasis on the diagnostic challenges and distinction between the different MCL variants.
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Affiliation(s)
- Maria Georgaki
- Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon St., Goudi, 11527, Athens, Greece.
| | - Vasileios Ionas Theofilou
- Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon St., Goudi, 11527, Athens, Greece
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, USA
| | - Efstathios Pettas
- Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon St., Goudi, 11527, Athens, Greece
| | - Evangelia Piperi
- Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon St., Goudi, 11527, Athens, Greece
| | - Eleana Stoufi
- Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon St., Goudi, 11527, Athens, Greece
| | - Panayiotis Panayiotidis
- First Propaedeutic Department of Internal Medicine "Laiko" Hospital, Medical School, University of Athens, Athens, Greece
| | - Nikolaos G Nikitakis
- Department of Oral Medicine & Pathology and Hospital Dentistry, School of Dentistry, National and Kapodistrian University of Athens, 2 Thivon St., Goudi, 11527, Athens, Greece
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10
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Li Y, Qiao Y, Wang H, Wang Z. Intraperitoneal injection of PDTC on the NF-kB signaling pathway and osteogenesis indexes of young adult rats with anterior palatal suture expansion model. PLoS One 2021; 16:e0243108. [PMID: 34242224 PMCID: PMC8352129 DOI: 10.1371/journal.pone.0243108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/15/2020] [Indexed: 11/18/2022] Open
Abstract
In recent years, many studies have found that mechanical tension can activiate NF-kB signal pathway and NF-kB plays an important role in the process of osteogenesis. However, it is still unclear whether this process exists in the anterior palatal suture expansion. In this paper, we mainly studied the effect of intraperitoneal injection of PDTC on the NF-kB signaling pathway and osteogenesis index of the anterior palatal suture expansion model in young adult rats. The expansion model is grouped and established: 45 male 8-week-old Sprague-Dawley rats were randomly divided into three groups, an expansion only (EO) group, an expansion plus PDTC (PE) group, and a control group. The results revealed that PDTC inhibited the activity of NF-kB signaling pathway and promote one morphogenetic protein 2 (BMP-2), steocalatin (OCN) expression. Compared with the control group, the optical density (OD) value of BMP in the EO group and PE group rats increased significantly from the first day to the seventh day, and the difference was statistically significant (P<0.05). After 6.0Gy irradiation, PDTC administration group could slightly increase the total SOD level in the liver and serum of rats, and reduce the MDA level in the liver and serum, especially the effect of 60mg/kg and 90mg/kg was the most obvious.
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Affiliation(s)
- Yafang Li
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
- Zhengzhou Stomotology Hospital, Zhengzhou, Henan, China
| | - Yiqiang Qiao
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
| | - Huanhuan Wang
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
| | - Zao Wang
- Stomatology Department, The First Affiliated Hospital of Zhengzhou
University, Zhengzhou, Henan, China
- Zhengzhou Stomotology Hospital, Zhengzhou, Henan, China
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11
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Liu X, Zhang Y, Shen L, He Z, Chen Y, Li N, Zhang X, Zhang T, Gao S, Yue H, Li Z, Yu Z. LncRNA Meg3-mediated regulation of the Smad pathway in atRA-induced cleft palate. Toxicol Lett 2021; 341:51-58. [PMID: 33493612 DOI: 10.1016/j.toxlet.2021.01.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 01/05/2021] [Accepted: 01/18/2021] [Indexed: 12/15/2022]
Abstract
Palatal mesenchymal cell proliferation is essential to the process of palatogenesis, and the proliferation of mouse embryonic palate mesenchymal (MEPM) cells is impacted by both all-trans retinoic acid (atRA) and the TGF-β/Smad signaling pathway. The long non-coding RNA (lncRNA) MEG3 has been shown to activate TGF-β/Smad signaling and to thereby regulate cell proliferation, differentiation, and related processes. Herein, we found that atRA treatment (100 mg/kg) promoted Meg3 upregulation in MEPM cells, and that such upregulation was linked to the suppression of MEPM cell proliferation in the context of secondary palate fusion on gestational day (GD) 13 and 14. Moreover, the demethylation of specific CpG sites within the lncRNA Meg3 promoter was detected in atRA-treated MEPM cells, likely explaining the observed upregulation of this lncRNA. Smad signaling was also suppressed by atRA treatment in these cells, and RNA immunoprecipitation analyses revealed that Smad2 can directly interact with Meg3 in MEPM cells following atRA treatment. Therefore, we propose a model wherein Meg3 is involved in the suppression of MEPM cell proliferation, functioning at least in part via interacting with the Smad2 protein and thereby suppressing Smad signaling in the context of atRA-induced cleft palate.
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Affiliation(s)
- Xiaozhuan Liu
- Center for Clinical Single-Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yuwei Zhang
- Center for Clinical Single-Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lijun Shen
- Center for Clinical Single-Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhidong He
- School of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Yao Chen
- School of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Ning Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou, Henan, China
| | - Xiuli Zhang
- Division of Blood Vessel Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Tingting Zhang
- Center for Clinical Single-Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Suhua Gao
- Center for Clinical Single-Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Haodi Yue
- Center for Clinical Single-Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zhitao Li
- Medical College of Henan University of Science and Technology, Luoyang, Henan, China
| | - Zengli Yu
- Center for Clinical Single-Cell Biomedicine, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, Henan, China; School of Public Health, Zhengzhou University, Zhengzhou, Henan, China.
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Néri JDSV, Silva VPD, Ramalho LMP, De Castro LP, Santos JND. Necrotizing sialometaplasia: a case report of a non-ulcerated histopathological presentation. Dermatol Online J 2020; 26:13030/qt3274n86z. [PMID: 33423426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023] Open
Abstract
A 27-year-old woman presented with the chief complaint of severe pain in the palate region, which had been present for two months. Upon examination, she was found to have a firm, non-ulcerated nodule measuring about 2.5cm at the palatal junction. Incisional biopsy was recommended because the clinical differential diagnosis was mucoepidermoid carcinoma or squamous cell carcinoma. Anatomopathological examination revealed squamous metaplasia of the salivary gland ducts with preservation of the lobular architecture. Immunohistochemistry showed metaplastic ducts with low reactivity for p53 and Ki67, as well as positivity for CK AE1/AE3, CK7, p63, S-100, and SMA. The final diagnosis was necrotizing sialometaplasia. No treatment is required for this disease. Thirty-nine days after biopsy, total remission was observed with no signs of relapse after two years.
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13
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Affiliation(s)
- Pin-Hsuan Chiang
- Department of Dermatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chi-Hui Wang
- Department of Dermatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Bing Chen
- Department of Dermatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
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Li N, Liu J, Liu H, Wang S, Hu P, Zhou H, Xiao J, Liu C. Altered BMP-Smad4 signaling causes complete cleft palate by disturbing osteogenesis in palatal mesenchyme. J Mol Histol 2020; 52:45-61. [PMID: 33159638 DOI: 10.1007/s10735-020-09922-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 10/23/2020] [Indexed: 01/24/2023]
Abstract
As the major receptor mediated BMP signaling in craniofacial development, Bmpr1a expression was detected in the anterior palatal shelves from E13.5 and the posterior palatal shelves from E14.5. However, inactivating BMP receptor in the mesenchyme only leads to anterior cleft palate or submucous cleft palate. The role of BMP signaling in posterior palatal mesenchyme and palatal osteogenesis is still unknown. In this study, a secreted BMP antagonist, Noggin was over-expressed by Osr2-creKI to suppress BMP signaling intensively in mouse palatal mesenchyme, which made the newborn mouse displaying complete cleft palate, a phenotype much severer than the anterior or submucous cleft palate. Immunohistochemical analysis indicated that in the anterior and posterior palatal mesenchyme, the canonical BMP-Smad4 signaling was dramatically down-regulated, while the non-canonical BMP signaling pathways were altered little. Although cell proliferation was reduced only in the anterior palatal mesenchyme, the osteogenic condensation and Osterix distribution were remarkably repressed in the posterior palatal mesenchyme by Noggin over-expression. These findings suggested that BMP-Smad4 signaling was essential for the cell proliferation in the anterior palatal mesenchyme, and for the osteogenesis in the posterior palatal mesenchyme. Interestingly, the constitutive activation of Bmpr1a in palatal mesenchyme also caused the complete cleft palate, in which the enhanced BMP-Smad4 signaling resulted in the premature osteogenic differentiation in palatal mesenchyme. Moreover, neither the Noggin over-expression nor Bmpr1a activation disrupted the elevation of palatal shelves. Our study not only suggested that BMP signaling played the differential roles in the anterior and posterior palatal mesenchyme, but also indicated that BMP-Smad4 signaling was required to be finely tuned for the osteogenesis of palatal mesenchyme.
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Affiliation(s)
- Nan Li
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian, 116044, China
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Jing Liu
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China
- Medical Department of Dandong Stomatological Hospital, Dandong, 118002, China
| | - Han Liu
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian, 116044, China
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Shangqi Wang
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Ping Hu
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Hailing Zhou
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Jing Xiao
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian, 116044, China
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China
| | - Chao Liu
- Dalian Key Laboratory of Basic Research in Oral Medicine, School of Stomatology, Dalian Medical University, Dalian, 116044, China.
- Department of Oral Pathology, School of Stomatology, Dalian Medical University, Dalian, 116044, China.
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Karakida K, Aoki T, Tajiri T, Takahashi M, Nakanishi Y, Tamura M, Naito H. Clear Cell Carcinoma of the Hard Palate in an Adolescent Patient: A Case Report. Tokai J Exp Clin Med 2020; 45:121-125. [PMID: 32901899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 06/09/2020] [Indexed: 06/11/2023]
Abstract
Clear cell carcinoma is an extremely rare low-grade malignancies occurring in less than 1% of salivary gland tumors. We report a case of clear cell carcinoma of the hard palate in a 15-year-old adolescent patient. She first noticed a palatal tumor at age 9, but the tumor was left untreated for 6 years. We performed incisional biopsy, but no definitive diagnosis was obtained. Excisional biopsy was then performed, and the histopathological diagnosis was clear cell carcinoma of the salivary gland. However, the tumor was exposed at the margin of the surgical specimen; thus, additional excision was performed. Five years after the treatment, no local recurrence or metastasis has been observed.
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Affiliation(s)
- Kazunari Karakida
- Department of Oral and Maxillofacial Surgery, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji, Tokyo 192-0032, Japan.
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Zhang W, Shen Z, Xing Y, Zhao H, Liang Y, Chen J, Zhong X, Shi L, Wan X, Zhou J, Tang S. MiR-106a-5p modulates apoptosis and metabonomics changes by TGF-β/Smad signaling pathway in cleft palate. Exp Cell Res 2020; 386:111734. [PMID: 31770533 DOI: 10.1016/j.yexcr.2019.111734] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 11/11/2019] [Accepted: 11/16/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND The molecular mechanisms of abnormal palatogenesis were investigated in this study. A key regulator, miR-106a-5p, and its target pathway were analyzed. OBJECTIVES This research is trying to clarify the underlying mechanism of the modulation of miRNA transcription during the formation of cleft palate by 7T and 9.4T NMR metabolomic platforms. METHOD Differentially expressed miRNAs and mRNAs were analyzed by microarray analysis and verified by qRT-PCR. The protein expression in TGFβ signaling pathways were analyzed by Western Blotting. The relationship between miR-106a-5p and TGFβ were analyzed by luciferase reporter assay. Cell apoptosis were analyzed by flow cytometer. And finally, the metabonomics were analyzed by NMR and multivariate data analysis models (MVDA). RESULTS The expression of miR-106a-5p increased in cleft palatal tissue and negatively correlated with the protein level of Tgfbr2. The luciferase assay further proved that the tgfbr2 was a direct target of miR-106a-5p. In another aspect, miR-106a-5p increased apoptosis level in palatal mesenchymal cells, possibly because its inhibition of TGFβ signaling pathway. Moreover, low cholesterol and choline levels with high citric acid and lipid levels were observed by 7T and 9.4T NMR metabonomic analysis, which inferred the disorder of cell membrane synthesis in cleft palate formation. Furthermore, transformation from choline to phosphatidylcholine regulated by miR-106a-5p was also disrupted, resulting in phosphatidic choline synthesis disorder and reduced cell membrane synthesis. CONCLUSIONS The regulatory mechanism of cleft palate was studied at transcriptional and metabolomics levels, which may provide important information in understanding the primary cause of this abnormality.
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Affiliation(s)
- Wancong Zhang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Zhiwei Shen
- Department of Medical Imaging, Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Yue Xing
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Hanxing Zhao
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Yan Liang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China; University of Alberta, Department of Surgery, Divisions of Orthopaedic Surgery and Surgical Research, Edmonton, T6G 2E1, Canada
| | - Jiasheng Chen
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Xiaoping Zhong
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Lungang Shi
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Xinhong Wan
- Shenzhen Longgang District Maternity & Child Healthcare Hospital, Central Laboratory Shenzhen, Guangdong, China
| | - Jianda Zhou
- Central South University Third Xiangya Hospital, Department of Plastic and Reconstructive Surgery Changsha, Hunan, China
| | - Shijie Tang
- Department of Plastic Surgery and Burn Center, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China.
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Abstract
Benign migratory glossitis or geographic tongue is a benign condition that usually manifests as asymptomatic erythematous and migratory circinate patches, involving the lateral and dorsal aspects of the tongue. Extra-lingual lesions uncommonly occur and are mainly located on labial and buccal mucosae, lips and floor of the mouth. The present report describes one patient with a geographic lesion on the hard palate associated with lingual lesions and another patient who had multiple geographic lesions both in the hard and soft palate without lingual lesions. We found 64 cases in the English literature of ectopic locations with 22 palate involvement. No case of simultaneous involvement of the hard and the soft palate was found.
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Affiliation(s)
- Fabrice Campana
- Department of Dentistry, Timone Hospital, Assistance Publique- Hôpitaux de Marseille, Aix Marseille University, Marseille, France
| | - Emmanuelle Vigarios
- Department of Oral Medicine, Institut Claudius Regaud, Institut Universitaire du Cancer, Toulouse Oncopole, Toulouse, France
| | | | - Vincent Sibaud
- Department of Oncodermatology, Institut Claudius Regaud, Institut Universitaire du Cancer, Toulouse Oncopole, Toulouse, France
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Li W, Fu Y, Jiang B, Lo AY, Ameer GA, Barnett C, Wang B. Polymer-integrated amnion scaffold significantly improves cleft palate repair. Acta Biomater 2019; 92:104-114. [PMID: 31102764 DOI: 10.1016/j.actbio.2019.05.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 04/08/2019] [Accepted: 05/13/2019] [Indexed: 11/17/2022]
Abstract
Cleft palate is a common oral and craniomaxillofacial birth defect. As the ideal surgery time is shortly after birth, clinical treatments should result in minimal disruption of theskeleton to allow tissue growth in children. A tissue-engineered graft was created in this study for cleft palate repair by integrating poly(1,8-octamethylene-citrate) (POC) with a decellularized amnion membrane (DAM-POC) to incorporate the advantages of both the synthetic polymer and the native tissue. The success of POC incorporation was confirmed by laser-induced breakdown spectroscopy and fluorescence detection. The DAM-POC scaffold showed a certain level of structure collapse and lower stiffness but better resistance to enzyme digestion than the native amnion and DAM scaffold. The DAM-POC scaffold is cell compatible when seeded with mesenchymal stem cells, as evidenced by adequate cell viability and improved alkaline phosphatase (ALP) activity and calcium deposit. A large palate defect was first surgically created in a young rat model and then repaired with the DAM-POC scaffold. Eight weeks postsurgery, histological study and CT scans showed nearly complete healing of both soft and hard tissues. In conclusion, we developed a cell-free, resorbable graft by incorporating and integrating a synthetic polymer with a human DAM. When the DAM-POC scaffold was applied to repair a large palate defect in young rats, it showed adequate biocompatibility as evidenced by its effectiveness in guiding hard and soft tissue regeneration and minimum interference with natural growth and palate development of rats. STATEMENT OF SIGNIFICANCE: Proper restoration of severe cleft palate remains a major challenge because of insufficient autologous soft tissues to close the open wounds, thereby causing high tension at the surgical junction, secondary palatal fistulas, wound contraction, scar tissue formation, and facial growth disturbances. In this study, we have developed a tissue-engineered graft through incorporating and integrating a synthetic polymer with the human amnion membrane for cleft palate repair. The significance of this study lies in our ability to develop a cell-free, resorbable graft that can provide a less surgically invasive option to cover the open defect and support palate regeneration and tissue growth. This technique could potentially advance soft and hard tissue regeneration in children with birth craniomaxillofacial defects.
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Affiliation(s)
- Wuwei Li
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Dalian Medical University, Liaoning 116001, China
| | - Yuqian Fu
- Department of Oral and Maxillofacial Surgery, School of Stomatology, Dalian Medical University, Liaoning 116001, China
| | - Bin Jiang
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60201, United States; Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL 60201, United States
| | - Aaron Y Lo
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60201, United States; Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL 60201, United States
| | - Guillermo A Ameer
- Biomedical Engineering Department, Northwestern University, Evanston, IL 60201, United States; Center for Advanced Regenerative Engineering, Northwestern University, Evanston, IL 60201, United States
| | - Cleon Barnett
- Department of Physical Sciences, Alabama State University, Montgomery, AL 36104, United States
| | - Bo Wang
- Joint Department of Biomedical Engineering, Marquette University and the Medical College of Wisconsin, Milwaukee, WI 53226, United States.
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Janardhanan M, Suresh R, Savithri V, Veeraraghavan R. Extranodal diffuse large B cell lymphoma of maxillary sinus presenting as a palatal ulcer. BMJ Case Rep 2019; 12:bcr-2018-228605. [PMID: 30739092 PMCID: PMC6441260 DOI: 10.1136/bcr-2018-228605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/26/2018] [Indexed: 01/16/2023] Open
Abstract
A multitude of disease processes ranging from periodontitis to malignancies can lead to formation of solitary ulcer on the palate. Hence solitary ulcers of palate can often be a challenging one to diagnose. We report an interesting case of a diffuse large B cell lymphoma of the maxillary sinus which perforated the palatal bone and presented clinically as a palatal ulcer. Initially the lesion manifested as a small ill-defined swelling in the posterior palatal slope in relation to 24and25 which were mobile and hence was erroneously diagnosed as chronic periodontal abscess. This paper is intended to stress the relevance of including non-Hodgkin's lymphoma in the differential diagnosis of solitary palatal ulcers as it may be often misdiagnosed as more common reactive or inflammatory lesions.
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Affiliation(s)
- Mahija Janardhanan
- Department of Oral Pathology and Microbiology, Amrita School of Dentistry, AIMS Campus, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Rakesh Suresh
- Department of Oral Pathology and Microbiology, Amrita School of Dentistry, AIMS Campus, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Vindhya Savithri
- Department of Oral Pathology and Microbiology, Amrita School of Dentistry, AIMS Campus, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Ravi Veeraraghavan
- Department of Oral Surgery, Amrita School of Dentistry, AIMS Campus, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Andrade GS, de Souza Carvalho ACG, Magalhães TG, Cetira Filho EL, Cavalcante RB, Nogueira RLM. Expansive renal osteitis fibrosa: a case report. Oral Maxillofac Surg 2018; 22:323-327. [PMID: 29725779 DOI: 10.1007/s10006-018-0697-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 04/26/2018] [Indexed: 06/08/2023]
Abstract
Hyperparathyroidism (HPT) is an endocrine metabolic disorder characterized by increased secretion of parathyroid hormone. Untreated secondary HPT leads to renal osteodystrophy (ROD). Facial skeletal abnormalities in patients with ROD are rare. The purpose of this paper is to report a conservative surgical approach of exuberant osteitis fibrosa lesions in patient with chronic kidney disease. A 24-year-old female was referred to maxillofacial surgery department with giants ROD affecting palate, maxilla, and mandible, resulting in esthetic and functional impairment. The pathogeneses and multidisciplinary management of ROD are discussed with a brief literature review. Eight years after the conservative treatment of exuberant jaw lesions, no noticeable bone changes were observed in the patient. A multidisciplinary therapy is essential for correct diagnosis of ROD and optimal multimodality treatment. The conservative management was an efficient alternative for the success of the case reported.
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Affiliation(s)
| | | | | | - Edson Luiz Cetira Filho
- Division of Oral and Maxillofacial Surgery, IJF Hospital - Institute Dr. José Frota, Barão do Rio Branco street, 1816 - Center, Fortaleza, Ceará, 60025-061, Brazil.
| | - Roberta Barroso Cavalcante
- Department of Oral and Maxillofacial Pathology, Fortaleza University School of Dentistry, Fortaleza, Brazil
| | - Renato Luiz Maia Nogueira
- Department of Oral Surgery, Discipline of Oral and Maxillofacial Surgery and Stomatology, Federal University of Ceará School of Dentistry, Fortaleza, Ceará, Brazil
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Naoumova J, Alfaro GE, Peck S. Space conditions, palatal vault height, and tooth size in patients with and without palatally displaced canines: A prospective cohort study. Angle Orthod 2018; 88:726-732. [PMID: 30102088 DOI: 10.2319/120717-843.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES: To assess palatal vault height, tooth size, and dental arch dimensions in patients with unilateral and bilateral palatally displaced canines compared with a control group. MATERIALS AND METHODS: A sample of 66 patients (mean age: 11.5 ± 1.0 years) with 22 unilateral palatally displaced canines (UPDCs), 22 bilateral palatally displaced canines (BPDCs), and 22 controls (C) were consecutively recruited. All three groups had dental casts that were scanned digitally using the OrthoX three-dimensional model scanner. Tooth size, palatal vault height, dental arch width, dental arch depth, dental arch length, and dental arch space were measured by the same examiner using the GOM software. Remeasurements were made in 10 randomly identified patients. RESULTS: The palatal vault height was significantly lower in the BPDC group compared with controls. A significantly smaller mesial-distal crown width and, in general, more spacing in the maxilla were found in the UPDC and BPDC groups. No differences in arch length or arch width at the molar region were seen between the groups, while the arch length at the canine region was smaller in the UPDC and BPDC groups. However, this was observed in BPDC patients with both deciduous canines present and in most UPDC patients where the deciduous canine was present, compared with the control group, who had more permanent canines present. CONCLUSIONS: Patients with PDC had greater reduction in tooth size compared with the control group. The arch length and arch width were similar in patients with and without PDC.
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Bukhari A, Kennedy D, Hannam A, Aleksejūnienė J, Yen E. Dimensional changes in the palate associated with slow maxillary expansion for early treatment of posterior crossbite. Angle Orthod 2018; 88:390-396. [PMID: 29561655 DOI: 10.2319/082317-571.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES To compare palatal symmetry, dimensions, and molar angulations following early mixed-dentition slow maxillary expansion with parameters in normal controls. MATERIALS AND METHODS A total of 30 patients treated with a Haas-type expander for unilateral posterior crossbite with functional shift were compared with 30 controls matched for dental age, gender, and molar relationship. Records were taken before (T1) and after expansion (T2). Palatal width, surface area, volume, and molar angulations were measured on digitized models. Surface area and volume were split in half then divided into anterior, middle, and posterior segments to measure symmetry. Student's t-test was used to assess group differences. RESULTS Mean intercanine width increased 4.65 mm, and intermolar width increased 4.76 mm. The treated mean surface area increased 127.05 mm2 compared with 10.35 mm2 in controls. The treated palatal volume increased 927.55 mm3 compared with 159.89 mm3 for controls. At T1, the controls showed significant differences in surface area and volume between the anterior palatal segments. At T2, this difference occurred in surface area of middle palatal segments of the treated sample. First permanent molars showed an increased buccal and distal inclination after treatment, opposite to controls. The increase in buccal inclination was greater on the crossbite side. CONCLUSIONS The Haas-type expander results in similar expansion across the canines and first molars. A palate that is symmetrical before expansion may become asymmetric after expansion but only in the middle segment. Changes in individual molar angulation following palatal expansion can be measured without radiation imaging.
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Qu W, Shang J, Liu L, Xu D, Du P, Liu Z. Comparative study on the incision healing of the palatal mucosa by using Er:YAG laser or traditional scalpel in the SD rats. Lasers Med Sci 2018; 33:1019-1024. [PMID: 29356921 DOI: 10.1007/s10103-018-2450-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 01/15/2018] [Indexed: 11/24/2022]
Abstract
The aim of this study was to compare the histology of wound healing following incisions with the scalpel or the Er:YAG laser in the palatal mucosa of SD rats. Two types of wounds were performed with the stainless steel scalpel or the Er:YAG laser in the palatal mucosa of SD rats, while the adjacent untreated palatal mucosa was chosen as control. Rats were sacrificed on day 1, day 3, day 7, and day 30 post-surgery. Biopsy samples from each wound were examined and the expression of IL-1ß and TGF-ß1 was determined by enzyme-linked immunosorbent assay (ELISA). The early postoperative incision of the scalpel group had obvious bleeding and swelling, while the laser wound mainly covered the surface of white pseudomembrane. The infiltration of neutrophils and lymphocytes in the stroma of the scalpel incision was more than that of the laser group. Compared to the laser group, 1 and 3 days after operation, the TGF-β1 content of the scalpel group were significantly increased (P = 0.032 and 0.019). Seven days after operation, the TGF-β1 content of two groups was decreased. TGF-β1 expression of control group was obviously increased (P > 0.05); 1, 3, and 7 days after operation, the traditional scalpel amount of IL-1β expression was significantly higher than that of control group (P = 0.000, 0.000, and 0.001). Postoperative day 1, IL-1β expression of laser group and control group had no significant difference (P = 0.572). Three days after operation, IL-1β expression of laser incision was increased and was significantly higher than that in control group (P = 0.032), however lower than the scalpel group (P = 0.03). Seven days after operation, the IL-1β expression of two groups had no significant difference (P = 0.333); however, the IL-1β expression of two groups were significantly higher than that of the control group (P = 0.02 and 0.001). Compared to the traditional scalpel, the incision of Er:YAG laser has smaller inflammation reaction, more pseudomembrane coverage, and minimal damage of the mucoperiosteal tissue.
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Affiliation(s)
- Weidong Qu
- Department of Oral and Maxillofacial Surgery, Yantai Stomatological Hospital, No. 142 North Great Street, Zhifu District, Yantai, 264001, Shandong Province, People's Republic of China
| | - Jiang Shang
- Department of Oral and Maxillofacial Surgery, Yantai Stomatological Hospital, No. 142 North Great Street, Zhifu District, Yantai, 264001, Shandong Province, People's Republic of China
| | - Li Liu
- Department of Orthodontics, Yantai Stomatological Hospital, No. 142 North Great Street, Zhifu District, Yantai, 264001, Shandong Province, People's Republic of China
| | - Dapeng Xu
- Department of Oral and Maxillofacial Surgery, Yantai Stomatological Hospital, No. 142 North Great Street, Zhifu District, Yantai, 264001, Shandong Province, People's Republic of China
| | - Pinggong Du
- Department of Oral and Maxillofacial Surgery, Yantai Stomatological Hospital, No. 142 North Great Street, Zhifu District, Yantai, 264001, Shandong Province, People's Republic of China
| | - Zhonghao Liu
- Department of Implantology, Yantai Stomatological Hospital, No. 142 North Great Street, Zhifu District, Yantai, 264001, Shandong Province, People's Republic of China.
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Melo CA, Almeida-Júnior P, de Carvalho Melo AU, Ribeiro CF, Siqueira de Lira CÉ, Melo da Fonte JB, Batista de Melo MF, Takeshita WM, Cavalcanti de Albuquerque-Júnior RL. Giant schwannoma of the hard palate: a literature review and report of an uncommon case. Gen Dent 2018; 66:62-65. [PMID: 29303762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Schwannomas (also known as neurilemomas) are benign tumors that arise from the Schwann cells of the nerve sheath. While they seldom occur in the oral cavity, the tongue is the most common site. Palatal schwannomas are extremely rare. This article reports a case of a large, slowly developing schwannoma that caused bone erosion in the hard palate of an 18-year-old man. The diagnosis was based on histopathologic and immunohistochemical findings. The tumor was completely excised, and no recurrence was observed at a 1-year follow-up. This case is notable for the large dimensions, long period of evolution, and the uncommon anatomical site of the tumor. A review of the main clinical and histologic characteristics of palatal schwannomas reported in the last 40 years is also provided.
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Darvann TA, Hermann NV, Ersbøll BK, Kreiborg S, Berkowitz S. Palatal Surface Area of Maxillary Plaster Casts—A Comparison between Two-Dimensional and Three-Dimensional Measurements. Cleft Palate Craniofac J 2017; 44:381-90. [PMID: 17608546 DOI: 10.1597/05-213.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/22/2022] Open
Abstract
Objective: To investigate the relationship between corresponding two-dimensional and three-dimensional measurements on maxillary plaster casts taken from photographs and three-dimensional surface scans, respectively. Materials and Methods: Corresponding two-dimensional and three-dimensional measurements of selected linear distances, curve lengths, and (surface) areas were carried out on maxillary plaster casts from individuals with unilateral or bilateral cleft lip and palate. The relationship between two-dimensional and three-dimensional measurements was investigated using linear regression. Results and Conclusions: Error sources in the measurement of three-dimensional palatal segment surface area from a two-dimensional photograph were identified as photographic distortion (2.7%), interobserver error (3.3%), variability in the orientation of the plaster cast (3.2%), and natural shape variation (4.6%). The total error of determining the cleft area/palate surface area ratio was 15%. In population studies, the effect of using two-dimensional measurements is a decrease of discriminating power. In well-calibrated setups, a two-dimensional measurement of the cleft area/palate surface area ratio may be converted to a three-dimensional measurement by use of a multiplication factor of 0.75.
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Affiliation(s)
- Tron A Darvann
- Department of Pediatric Dentistry and Clinical Genetics, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, and Copenhagen University Hospital, Denmark.
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Liao YF, Mars M. Long-Term Effects of Palate Repair on Craniofacial Morphology in Patients with Unilateral Cleft Lip and Palate. Cleft Palate Craniofac J 2017; 42:594-600. [PMID: 16241170 DOI: 10.1597/04-077r.1] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [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: 11/22/2022] Open
Abstract
Objective To identify the long-term effects of palate repair on craniofacial growth in patients with unilateral cleft lip and palate (UCLP). Design Retrospective cross-sectional study. Setting Sri Lankan Cleft Lip and Palate Project. Subjects Forty-eight adults with nonsyndromic unilateral cleft lip and palate, 29 men and 19 women, had lip repair only (LRO group). Fifty-eight adults with nonsyndromic unilateral cleft lip and palate, 35 men and 23 women, had lip and palate repairs by the age of 9 (LPR group). Main Outcome Measures Clinical notes were used to record surgical treatment histories. Cephalometry was used to determine craniofacial morphology. Results In the lip and palate repair group, the depth of the bony pharynx (Ba-PMP), the maxillary length at the alveolar level (PMP-A), the effective length of the maxilla (Ar-IZ, Ar-ANS, Ar-A), the maxillary protrusion (S-N-ANS, SNA), the anteroposterior jaw relation (ANS-N-Pog, ANB), and the overjet were smaller than in the lip repair only group. There were no significant differences in the maxillary length at the basal level (PMP-IZ, PMP-ANS) and the anterior and posterior maxillary heights (N-ANS and R-PMP, respectively) in the two groups. Conclusion Palate repair inhibits the forward displacement of the basal maxilla and anteroposterior development of the maxillary dentoalveolus in patients with unilateral cleft lip and palate. Palate repair has no detrimental effects on the downward displacement of the basal maxilla or on palatal remodeling in patients with unilateral cleft lip and palate.
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Affiliation(s)
- Yu-Fang Liao
- Department of Dentistry, Craniofacial Center, and Sleep Center, Chang Gung Memorial Hospital, Taipei, Taiwan
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Nollet PJPM, Katsaros C, van 't Hof MA, Semb G, Shaw WC, Kuijpers-Jagtman AM. Treatment Outcome after Two-Stage Palatal Closure in Unilateral Cleft Lip and Palate: A Comparison with Eurocleft. Cleft Palate Craniofac J 2017; 42:512-6. [PMID: 16149832 DOI: 10.1597/04-129.1] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [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: 11/22/2022] Open
Abstract
Objective To evaluate dental arch relationships of patients with unilateral cleft lip and palate (UCLP) treated with a two-stage palatal closure and to compare them with the six centers from the Eurocleft study that used various treatment protocols. Design Repeated-measures study. Setting Cleft Palate Craniofacial Unit of Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands. Patients Records of 9-year-old children with complete unilateral cleft lip and palate (n = 43) were included. Interventions The dental arch relationships of these patients were assessed by applying the Goslon Yardstick and subsequently compared with the Goslon outcome of the six-center Eurocleft study. Mean Outcome Measures Statistics of intra- and interexaminer agreement. Results For the Nijmegen UCLP group, 9% of dental arch relationships had a Goslon score of 1, 52% had a score of 2, 30% has a score of 3, 9% had a score of 4, and none had a score of 5. The mean Nijmegen Goslon score showed no significant differences with Eurocleft centers A, B, and E, which achieved the best treatment results, but did significantly differ from Goslon outcomes of Eurocleft centers D (p < .001), C, and F (p < .01), which had relatively poor treatment outcome. Conclusions Treatment outcome of the patients in the Nijmegen UCLP group treated with two-stage palatal closure was comparable with the results of the Eurocleft centers with the best outcome. Treatment protocol could not explain differences in the quality of treatment results.
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Affiliation(s)
- Pieter J P M Nollet
- Department of Orthodontics and Oral Biology, Radboud University Nijmegen Medical Center, Nijmegen, the Netherlands
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29
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Eriksen J, Hermann NV, Darvann TA, Kreiborg S. Early Postnatal Development of the Mandible in Children with Isolated Cleft Palate and Children with Nonsyndromic Robin Sequence. Cleft Palate Craniofac J 2017; 43:160-7. [PMID: 16526921 DOI: 10.1597/04-113.1] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [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: 11/22/2022] Open
Abstract
Objective Analysis of early postnatal mandibular size and growth velocity in children with untreated isolated cleft palate (ICP), nonsyndromic Robin sequence (RS), and a control group of children with unilateral incomplete cleft lip (UICL). Material 114 children (66 isolated cleft palate, 7 Robin sequence, 41 unilateral incomplete cleft lip) drawn from a group representing all Danish cleft children born from 1976 through 1981. All children were examined at both 2 and 22 months of age. Methods Cephalometric x-rays and maxillary plaster casts. Mandibular length and height were measured and mandibular growth velocity (mm/year) was calculated. Cleft width was measured on the casts at 2 months of age. Results Mean mandibular length and posterior height were significantly smaller in isolated cleft palate and Robin sequence, compared with unilateral incomplete cleft lip. Mandibular length in Robin sequence was also significantly shorter, compared with isolated cleft palate. No significant difference was found between mean mandibular growth velocities in the three groups. No significant correlation was found between mandibular length and cleft width in either isolated cleft palate or Robin sequence at 2 months of age. Conclusion The children with isolated cleft palate and Robin sequence had small mandibles shortly after birth, but with a relatively normal growth potential. No true mandibular catch-up growth was found up to 22 months of age in either group. No significant correlation was found between mandibular size and cleft width in either group at 2 months of age. However, there was a significant trend toward the shorter the mandible, the more severe the sagittal extension of the cleft.
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Affiliation(s)
- J Eriksen
- Department of Pediatric Dentistry and Clinical Genetics, School of Dentistry, University of Copenhagen, Nørre Allé 20, DK-2200 Copenhagen N, Denmark
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Kwak HJ, Park HJ, Kim YJ, Lee DY. Factors associated with long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion. Angle Orthod 2017; 88:157-162. [PMID: 29131663 DOI: 10.2319/042717-282.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES This study investigated the long-term vertical skeletal changes induced by facemask therapy in patients with Class III malocclusion and different vertical skeletal patterns. MATERIALS AND METHODS A total of 54 patients (20 boys and 34 girls; mean age, 7.7 ± 2.0 years) with Class III malocclusion who were successfully treated with facemask therapy were included in this study. Vertical skeletal changes (overbite depth indicator, angle between the Sella-Nasion (SN) plane and Gonion-Gnathion (GoGn) line, angle between the Frankfort horizontal (FH) plane and mandibular plane, gonial angle, and angle between the SN plane and palatal plane) were measured on lateral cephalograms from before treatment (T0) to after facemask therapy (T1) and from T0 to after retention (T2). Multivariate linear regression analysis was used to study the associations of the patients' skeletal patterns with the short-term (T0-T1) and long-term (T0-T2) vertical skeletal changes as a result of facemask therapy. RESULTS The mean treatment period of facemask therapy (T0-T1) was 1.4 ± 0.6 years, and the mean retention period (T1-T2) was 6.9 ± 2.6 years. Age at T0 was significantly correlated with vertical skeletal changes from T0 to T1. Differences in the treatment results between sexes were not significant. The angle between point A-point B line and mandibular plane to mandibular plane angle at T0 and the angle between the FH plane and mandibular plane at T0 were significant predictors for short-term and long-term changes. Changes in the Sella-Nasion-point A from T0 to T1 and from T1 to T2 significantly affected vertical changes in the short term and long term, respectively. CONCLUSIONS Vertical skeletal changes as a result of facemask therapy are significantly associated with severity of the skeletal Class III malocclusion and mandibular plane angulation before treatment and the amount of forward maxillary growth during the treatment and retention periods.
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31
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Damm DD. Gingival mass and Blue lesion of palate. Gen Dent 2017; 65:77-78. [PMID: 28862582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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32
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Khalele BAO. Caliber persistent artery in the palate of an Egyptian patient with type 2 diabetes mellitus: a rare case report. Pathologica 2017; 109:148-150. [PMID: 29154373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023] Open
Abstract
This paper reports a very rare case of isolated ulcerative lesion of the palate in a patient with type 2 diabetes mellitus. The patient refused to run any radiological tests, other than the periapical radiograph. This rendered the diagnostic dilemma more challenging. Through histochemical and immunohsitochemical stains, the case could be non-invasively diagnosed as caliber-persistent artery. All differential diagnoses were excluded based on concrete findings.
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Affiliation(s)
- B Ae O Khalele
- Department of Diagnostic Pathology, Ministry of Health, Egypt
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33
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Bajpai M, Pardhe N, Chandolia B, Arora M. Solitary Fibrous Tumor / Hemangiopericytoma of Palate - Report of a Case with Immunohistochemical Interpretation Using CD 34. J Coll Physicians Surg Pak 2017; 27:457-458. [PMID: 28818175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 01/16/2017] [Indexed: 06/07/2023]
Affiliation(s)
- Manas Bajpai
- Department of Oral and Maxillofacial Pathology, NIMS Dental College, Jaipur, India
| | - Nilesh Pardhe
- Department of Oral and Maxillofacial Pathology, NIMS Dental College, Jaipur, India
| | - Betina Chandolia
- Department of Oral and Maxillofacial Pathology, NIMS Dental College, Jaipur, India
| | - Manika Arora
- Department of Oral and Maxillofacial Pathology, NIMS Dental College, Jaipur, India
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Abstract
Palatogenesis is a complex morphogenetic process, disruptions in which result in highly prevalent birth defects in humans. In recent decades, the use of model systems such as genetically-modified mice, mouse palatal organ cultures and primary mouse embryonic palatal mesenchyme (MEPM) cultures has provided significant insight into the molecular and cellular defects underlying cleft palate. However, drawbacks in each of these systems have prevented high-throughput, large-scale studies of palatogenesis in vitro. Here, we report the generation of an immortalized MEPM cell line that maintains the morphology, migration ability, transcript expression and responsiveness to exogenous growth factors of primary MEPM cells, with increased proliferative potential over primary cultures. The immortalization method described in this study will facilitate the generation of palatal mesenchyme cells with an unlimited capacity for expansion from a single genetically-modified mouse embryo and enable mechanistic studies of palatogenesis that have not been possible using primary culture.
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Affiliation(s)
- Katherine A. Fantauzzo
- Department of Cell, Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
- Department of Craniofacial Biology, School of Dental Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, United States of America
| | - Philippe Soriano
- Department of Cell, Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
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35
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Ramesh G, Raj A, Nagarajappa R, Pandey A. Basal cell adenoma of palatal glands. J Exp Ther Oncol 2017; 12:55-59. [PMID: 28472565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/27/2016] [Accepted: 10/03/2016] [Indexed: 06/07/2023]
Abstract
Salivary gland neoplasms represent less than 3% of all tumors in the general population of which benign adenomas account for 65.5%. Basal cell adenoma which is classified as a subtype of monomorphic adenomas accounts for 1-2% of all salivary gland epithelial tumors, and more than 80% of them arise in the major salivary glands, mostly the parotid gland and has female predominance reporting mostly in the elderly age groups. We here report a case of basal cell adenoma of trabecular type in a male patient of age 45 years in the minor salivary glands of left posterior palatal region.
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Affiliation(s)
- Gayathri Ramesh
- Department of Oral and Maxillofacial Pathology, Rama Dental College Hospital and Research Centre, Kanpur-208024, Uttar Pradesh, India
| | - Amrita Raj
- Department of Oral and Maxillofacial Pathology, Rama Dental College Hospital and Research Centre, Kanpur-208024, Uttar Pradesh, India
| | - Ramesh Nagarajappa
- Dept. of Public Health Dentistry, Institute of Dental Sciences, Bhuvaneshwar, Orissa, India;
| | - Amit Pandey
- Dept. of Periodontics, Rama Dental College Hospital and Research Centre, Kanpur -208024, Uttar Pradesh, India;
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36
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Damm DD. Palatal mass. Induration of soft palate. Gen Dent 2017; 65:77-78. [PMID: 28475080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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37
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Park JC, Cheung WS, Campbell KM. A Rare Case of Gingival Cyst in a Child. J Dent Child (Chic) 2017; 84:44-46. [PMID: 28387190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Gingival cysts, which are more frequently reported as gingival cysts of adults (GCA), are soft tissue cystic lesions of odontogenic origin that are infrequently seen, especially in children. These lesions usually appear as localized firm elevations on the facial gingiva in the anterior segment of the mandible. The purpose of this paper is to present a rare case of a gingival cyst discovered on the palatal aspect of the posterior maxilla in a four-year-old child. The lesion was treated with excisional biopsy.
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Affiliation(s)
- Jennifer C Park
- Clinical assistant professor, in the Department of Oral Health Sciences, Faculty of Dentistry, University of British Columbia, in Vancouver, British Columbia, Canada
| | - Wa Sham Cheung
- Clinical associate professor, in the Department of Oral Health Sciences, Faculty of Dentistry, University of British Columbia, in Vancouver, British Columbia, Canada;,
| | - Karen M Campbell
- Chief of Dentistry, British Columbia Children's Hospital, and director, Pediatric Dentistry Graduate Program, and a clinical associate professor, Department of Oral Health Sciences, Faculty of Dentistry, University of British Columbia, in Vancouver, British Columbia, Canada
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Chomiuk P, Loster JE, Uliasz-Jawor K, Stręk P. [Interdisciplinary surgical and prosthetic treatment of adenocarcinoma of the palate]. Wiad Lek 2017; 70:405-409. [PMID: 29059666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
INTRODUCTION The palatal mucosa requires careful testing prior to prosthetic treatment. Pathological changes may occur during the period of use of a dental prosthetic, especially when worn constantly. Aim of the report: We describe the case of a patient who experienced extensive changes in the mucosa of the hard palate over 12 years of dentures used. CASE PRESENTATION The 78-year-old female patient was referred to the Department of Otolaryngology of the Jagiellonian University Hospital in Krakow with a diagnosis of adenocarcinoma of the palate. In connection with the planned extensive surgery, there was indication for the use of a palatal plate with an obturator in order to close the expected gap in the palate structure. No recurrence of the tumor was seen in the period examined. Summation: Despite the extensive tumor, two small defects in the palate remained after surgery. These were effectively sealed and the patient reached the five-year survival point.
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Affiliation(s)
- Piotr Chomiuk
- Katedra Protetyki Stomatologicznej, Instytut Stomatologii, Wydział Lekarski, Collegium Medicum, Uniwersytet Jegieloński, Krakow, Polska
| | - Jolanta E Loster
- Katedra Protetyki Stomatologicznej, Instytut Stomatologii, Wydział Lekarski, Collegium Medicum, Uniwersytet Jegieloński, Krakow, Polska
| | - Katarzyna Uliasz-Jawor
- Katedra Otolaryngologii, Wydział Lekarski, Collegium Medicum, Uniwersytet Jegieloński, Krakow, Polska
| | - Paweł Stręk
- Katedra Otolaryngologii, Wydział Lekarski, Collegium Medicum, Uniwersytet Jegieloński, Krakow, Polska
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Balatsouras DG, Eliopoulos P, Assimakopoulos D, Korres S. Primary Local Amyloidosis of the Palate. Otolaryngol Head Neck Surg 2016; 137:348-9. [PMID: 17666271 DOI: 10.1016/j.otohns.2007.03.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2007] [Accepted: 03/27/2007] [Indexed: 11/15/2022]
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40
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Nayak A, Nayak MT. Oral squamous papilloma occurring on the palate with review of literature. J Exp Ther Oncol 2016; 11:319-324. [PMID: 27849344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 07/01/2016] [Indexed: 06/06/2023]
Abstract
Squamous papillomas are common lesions occurring on skin, oral and nasal mucosa and male and female genital organs. Oral squamous cell papilloma (OSP) is a benign proliferation of the stratified squamous epithelium and is generally believed to be caused by Human Papilloma Viruses (HPV). It constitutes around 2.5% of all oral verruco-papillary lesions. We here, report a case of palatal OSP occurring in a 55-year-old male. The aetiological, clinical, diagnostic and treatment aspects of OSP are discussed here.
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Affiliation(s)
- Anjali Nayak
- Department of Oral Medicine & Radiology, Teerthanker Mahaveer Dental College & Hospital, Teerthanker Mahaveer University, Bagadpur, Delhi Road, Moradabad - 244001, Uttar Pradesh, India
| | - Meghanand T Nayak
- Department of Oral & Maxillofacial Pathology, Teerthanker Mahaveer Dental College & Hospital, Teerthanker Mahaveer University, Bagadpur, Delhi Road, Moradabad - 244001, Uttar Pradesh, India
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Shin JO, Huh YH, Cho LR, Park CJ. The Effect of Edentulous Maxillary Impression Tray Designs When Flabby Tissue Is Present: An In Vitro Study. INT J PROSTHODONT 2016; 29:467-72. [PMID: 27611750 DOI: 10.11607/ijp.4777] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A model with simulated flabby tissue was fabricated by modifying the standard maxillary edentulous acrylic resin cast to evaluate the effect of maxillary impression tray design on the displacement of flabby tissue. Seven groups of trays were fabricated using different combinations of relief spaces and escape holes. After impression taking, test and control casts were scanned and three-dimensional digital models were superimposed. Negative deviations were recorded at the point of the alveolar crest, the posterior part of the flabby tissue, and the middle of the palate, while positive deviations were recorded at the point of the anterior part of flabby tissue. The amount and characteristics of tissue displacement differed with tray design and the relief method used.
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42
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Bajpai M, Pardhe N. Intravascular Papillary Endothelial Hyperplasia of Palate. J Coll Physicians Surg Pak 2016; 26:801. [PMID: 27671193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 04/27/2016] [Indexed: 06/06/2023]
Affiliation(s)
- Manas Bajpai
- Department of Oral and Maxillofacial Pathology, NIMS Dental College, Jaipur, India
| | - Nilesh Pardhe
- Department of Oral and Maxillofacial Pathology, NIMS Dental College, Jaipur, India
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Halicioğlu K, Yavuz I. A comparison of the sagittal and vertical dentofacial effects of maxillary expansion produced by a memory screw and a hyrax screw. Aust Orthod J 2016; 32:31-40. [PMID: 27468589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
AIM The aim of the present study was to investigate and compare the cephalometric effects of a conventional Hyrax expansion screw and a memory screw on the skeletal and dentoalveolar structures and soft tissues of the face. METHODS Thirty-two patients with a maxillary transverse deficiency were divided into two groups. A memory-screw group included 17 patients (nine females and eight males), while a Hyrax-screw group was comprised of 15 patients (eight females and seven males). The mean ages of the subjects in the memory-screw and Hyrax-screw groups were 13.00 ± 1.29 and 12.58 ? 1.50 years, respectively. Lateral cephalograms were taken of the patients at the beginning of the treatment (T1), at the end of expansion (T2) and retention periods (T3). The mean expansion period was 7.76 ± 1.04 days in the memory-screw group and 35.46 ± 9.39 days in the Hyrax-screw group. The Shapiro-Wilk Normality test was used to determine whether the investigated parameters were homogeneous. To determine the treatment changes within the groups, a paired test and Wilcoxon Signed Rank test were applied to the homogeneous and non-homogeneous parameters, respectively. A comparison between the groups was carried out using the Student's t-test for homogeneous parameters and the Mann-Whitney U test for all others. RESULTS A results summary indicates that mid-palatal sutural opening and subsequent important skeletal and dental expansions were obtained in all patients. The maxilla moved anteriorly and inferiorly in both groups while the mandible rotated inferiorly and posteriorly but to a greater extent in the memory-screw group. CONCLUSION The newly-developed memory expansion screw takes advantage of rapid and slow maxillary expansion protocols. The suture is opened and the maxilla expanded with relatively lighter forces over a shorter time. The RME using the memory screw resulted in similar sagittal and vertical changes to those produced by the Hyrax screw.
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Bajpai M, Agarwal D, Kumar M, Kumar M. Peripheral Osteoma of Palate. Ann Acad Med Singap 2016; 45:110-112. [PMID: 27146464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Manas Bajpai
- Department of Oral and Maxillofacial Pathology, NIMS Dental College, India
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Abstract
Haemangiomas are benign tumours of blood vessel origin and are classified as capillary, cavernous or central. They appear as flat or raised reddish-blue lesions and are generally solitary, affecting women in younger age groups. The tumour may be slowly progressive, involving extensive portions of the superficial and deep blood vessels, and affect function, depending on location. They are common in the head and neck region but rarely in the oral cavity. Oral lesions generally appear on the lips, buccal mucosa and tongue, but rarely on the palate. As the lesion can be confused with pyogenic granuloma, histopathological examination is important for a final diagnosis. The case presented here signifies a rare location of a capillary haemangioma on the palate in a middle aged man. The lesion was diagnosed by histopathology after surgical excision.
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Affiliation(s)
- Pooja Singh
- Department of Oral Medicine and Radiology, Maharana Pratap College of Dental Sciences and Research Centre, Gwalior, Madhya Pradesh, India
| | - Anuj Singh Parihar
- Deaprtment of Periodontics, People's College of Dental Sciences and Research Centre, Bhopal, Madhya Pradesh, India
| | - Sana Noor Siddique
- Department of Oral Medicine and Radiology, People's College of Dental Sciences and Research Centre, Bhopal, Madhya Pradesh, India
| | - Pooja Khare
- Department of Oral Medicine and Radiology, People's Dental Academy, Bhopal, Madhya Pradesh, India
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Bains R, Verma P, Chandra A, Tikku AP, Singh N. Nasopalatine duct cyst mimicking an endodontic periapical lesion: a case report. Gen Dent 2016; 64:63-66. [PMID: 26742170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Lesions of nonendodontic origin, such as nasopalatine or globulomaxillary cysts, may mimic periapical radiolucencies associated with pulpal pathosis, and incorrect diagnosis may lead to unnecessary endodontic treatment. Horizontal root fractures most commonly affect the maxillary central and lateral incisors. Prognosis depends largely on the level of fracture; fractures in the apical third have the best prognosis, and those in the cervical third have the worst. This case report discusses surgical and restorative management of a patient who had a nasopalatine cyst that had been misdiagnosed and treated as an endodontic lesion of the maxillary right central incisor as well as a midroot horizontal fracture of the adjacent lateral incisor.
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Damm DD. Rough patch of palatal mucosa. Hyperplastic and discolored palatal gingival. Gen Dent 2016; 64:78-80. [PMID: 26742173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Galvoronskiy IV, Galvoronskaya MG, Semyonova AA, Ponomaryov AA. ANATOMICAL CORRELATIONS OF THE PALATO-ALVEOLAR COMPLEXES AND MAXILLARY SINUSES IN ADULT PERSONS. Morfologiia 2016; 149:58-61. [PMID: 30136802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
To detect the anatomical correlations between the form of the palato-alveolar complex and the shape and degree of pneumatization of the maxillary sinuses, skull frontal saw cuts obtained from 60 adult persons were studied at the level of the second molars. The form of the palato-alveolar complex was found to change significantly with the loss of teeth. Thus the palato-alveolar complex with well expressed alveolar process of the upper jaw and high palatal vault more often corresponded to the maxillarysinus of a trihedral or uncertain form with the varying degrees of pneumatization. The palato-alveolar complex with a considerable atrophy of an alveolar process of the upper jaw and the flat palate was accompanied by the hyperpneumatitized sinuses of a tetrahedral form, while the transitional form of the complex which was observed in cases of partial loss of the teeth, was combined with the asymmetry of the form and degree of a pneumatization of the sinuses. These correlations are important for oral and maxillofacial surgery and dentistry.
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Ge L, Ming T, Hou J, Yan J, Zhao L, Gong N, Jiang J, Wang F. [Pathological changes of upper and lower respiratory tissue in rats with chronic intermittent hypoxia]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2015; 50:939-943. [PMID: 26888000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the pathological changes of chronic intermittent hypoxia on upper and lower respiratory tissue in experimental rats. METHODS A total of 40 female SD rats were divided into 2 groups. Twenty rats were fed in normal state (control group), and 20 rats were fed in hypoxia environment (hypoxia group). The pathological changes of upper and lower respiratory tissue were observed under optical microscope. RESULTS Chronic intermittent hypoxia resulted in irreversible changes both at upper and lower respiratory tract in rats. The thickness of the lamina propria in soft palate was significantly increased in hypoxia group (125.85 ± 6.34) µm vs. (57.26 ± 4.67) µm (t=36.330, P<0.01). Lung pathological examination in hypoxia group showed pulmonary interval thickening (2.15 ± 0.49) µm vs. (0.45 ± 0.12) µm (t=14.132, P<0.01). CONCLUSIONS This study confirmed that long-term hypoxia can lead to organization reconstruction in upper and lower respiratory tract in rats. In OSAHS patients, it is suggested that earlier intervention could alliviate the pathological changes in respiratory system.
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Affiliation(s)
- Liqiao Ge
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital Affiliated to Xi'an Medical University, Xi'an 710077, China
| | | | | | | | | | | | | | - Fei Wang
- , Department of Anesthesia, First Hospital Affiliated to Xi'an Medical University, 710077 Xi'an, China
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Inagaki T, Adachi M, Azuma M, Muramatsu Y. Huge palatal mass. N Z Med J 2015; 128:62. [PMID: 26365848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | - Makoto Adachi
- DDS, PhD, Department of Oral and Maxillofacial Surgery, Asahi University Murakami Memorial Hospital, 3-23 Hashiotocho, Gifu, Gifu 500-8523, Japan.
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