Hereditary gingival fibromatosis: a three-generation case report / 华西口腔医学杂志

Hereditary gingival fibromatosis (HGF) is a familial hereditary disease; while it is rare and usually benign, it is also characterized by the slow and progressive development of gingival tissue. This paper reports on the clinical examina-tion and history of HGF in a family of patients.

The study of pathogenic mechanism in hereditary gingival fibromatosis / 实用医学杂志

Objective To determine the role of B cell specific moloney leukemia virus insert site 1 (Bmil) in hereditary gingival fibromatosis (HGF). Methods The HE staining was used to analyze the HGF and normal groups. The protein and mRNA of the Bmil, PCNA and caspase-3 in 2 groups were detected by immunohistochemistry and PCR, respectively. Results In HGF group, the gingival epithelial was incrassation, epithelial spikes was elongation, connective tissue was rich in fibroblast and collagen fibers, aless blood vessels and mild inflammatory hyperplasia. Bmil expression was higher (P < 0.05) and caspase-3 expression was lower (P < 0.05) in HGF group than in normal group. There was no difference of PCNA expression in the 2 groups (P> 0.05).Conclusion The Bmil might have a role in the pathogenesis of HGF by decreasing caspase-3 and caspase-3 mRNA.

Exploring the Genetic Basis of Periodontal Diseases–A Review.

The periodontal disease is initiated by microbial plaque, which accumulates in the gingival crevice & induces an inflammatory response. This inflammation leads to chronic gingivitis, which is reversible & may later progress as periodontitis, by destruction of bone & other tooth-supporting structures. Although present in most of the population, the risk for periodontal disease is not uniform for all individuals. About 10-15% of the population develops severe destruction of the periodontal structures leading to early loss of the tooth. This inflammatory response leading to periodontal destruction is assumed to have a genetic basis. It is now recognized that poor oral hygiene alone cannot account for severe destructive periodontal disease, that certain individuals are at relatively high risk of periodontal destruction and that the risk is partly under genetic control. The microbial causation of the inflammatory periodontal disease is well established. There are however other elements that influence the inflammatory and immune response both locally and systemically. These include systemic disease such as diabetes and environmental factors such as smoking and possibly stress. The effectiveness of an individual’s immune response may influence the extent of periodontal destruction. The role of genetic factors in the causation of peridontitis is worthy of in depth discussion.

Hereditary gingival fibromatosis - a case report and management using a novel surgical technique

Introduction: Hereditary gingival fibromatosis (HGF) is a rare condition presenting varied degrees of gingival enlargement. HGF can present as an isolated entity or as part of a syndrome. Current literatures report a defect in the Son of sevenless-1 gene (SOS-1) on chromosome 2p21-p22 (HGF1) as a possible cause of this condition. Case report: A case of a 16-year-old female is reported who presented generalized extensive gingival overgrowth, involving the maxillary and mandibular arches covering almost two thirds to three quarters of all teeth. Diagnosis of HGF was substantiated by the patient's clinical features, family history and histopathological examination. Treatment was excision of the gingival tissue by a modified gingivectomy technique with both manual instrumentation and electrosurgery. The postoperative course was uneventful and the patient's aesthetic concerns were addressed. Post-surgical follow-up after 18 months demonstrated no recurrence. Conclusion: Hereditary gingival fibromatosis stands apart from other gingival enlargements in the varied treatment options available and the nature of recurrence post treatment. There is no consensus among authors related to the mode of treatment. Here, in this present case report we highlight a novel surgical technique to deal with the extensive nature of enlargement seen in HGF cases.

Gingival fibromatosis with hemi-osseous hyperplasia of jaws, focal maxillary viral papillomatosis of gingiva, fissured tongue and congenitally missing anterior teeth: A case report and surgical management of a new syndrome.

Gingival fibromatosis is characterized by fibrotic enlargement of the gingiva that can occur as inherited or sporadic form. Inherited form can be an isolated trait or as a component of a syndrome. This article reports a 35 year old male patient affected by gingival fibromatosis associated with hemiosseous hyperplasia of mandible, maxilla, and zygoma on the right side, viral papillomatosis of maxillary anterior gingiva, fissured tongue and congenitally missing anterior teeth. The patient was subjected to phase I and phase II periodontal therapy. There was no evidence of recurrence of the enlargement after one year but the papillomatosis recurred. Gingival fibromatosis has been reported to be associated with various other abnormalities but not with those described in our case. This observation raises the possibility that the coexistence of these entities in our case may represent a new syndrome.

Avaliação estrutural e diagnóstica de três lesões fibrosas da cavidade bucal / A structural and diagnostic evaluation of three oral fibrous lesions

O objetivo do presente trabalho é analisar os componentes celulares e de fibras do tecido conjuntivo nas hiperplasias inflamatórias (HI), nos fibromas (F) e na fibromatose gengival hereditária (FGH), além de investigar a imunocompetência e efetuar análises moleculares de pacientes com FGH. Para atingir os objetivos foram desenvolvidos 4 artigos, com diferentes metodologias e universos amostrais. No 1° artigo, pretendeu-se estabelecer critérios microscópicos validos para diferenciar F e HI. Foram avaliadas em microscópio óptico 136 lesões coradas pela Hematoxilina-eosina (HE) e pelo Tricrômico de Masson quanta às características microscópicas. Os resultados mostraram que uma área central de fibras colágenas dispostas de forma enovelada e mais densa, circundada por uma camada de fibras dispostas de forma paralela são características dos F, enquanto a presença de hiperplasia epitelial, infiltrado inflamatório e fibras colágenas organizadas de forma paralela são características das HI. Tais resultados motivaram o 2° artigo, no qual estudamos 18 lesões de F e 13 de HI, que foram preparadas histologicamente e coradas pelo picrosírius red e pelo direct blue para avaliação quantitativa das fibras colágenas e de fibras do sistema elástico, respectivamente, em microscopia a laser confocal. Os resultados confirmaram a disposição estrutural das fibras colágenas observada no 1° artigo, além de apontarem diferenças nas áreas ocupadas pelas fibras colágenas em todas as regiões estudadas. A fim de proceder a uma avaliação dos componentes fibroso e celular das 3 lesões fibrosas, foi desenvolvido o 3° artigo. Especimes das 3 lesões foram estudados em microscopia ótica, a fim de avaliar suas populações de fibroblastos e de células inflamatórias e os seguintes componentes fibrosos do tecido conjuntivo...

The objective of this study was to analyze the cellular and fibrous components of connective tissue in inflammatory hyperplasia (IH), oral fibroma (OF) and hereditary gingival fibromatosis (HGF), and to investigate the immuno competence and to perform molecular analysis in HGF patients. To achieve the goals were developed 4 articles, with different methodologies and sample universes. In the 1st article, we intended to establish microscopic criteria to differentiate F and IH. The microscopic characteristics of the lesions (n=136) stained by hematoxylin-eosin (HE) and Masson trichrome were evaluated in an optical microscope. The results showed that a central area of wound collagen fibers and arranged in a higher density, surrounded by a layer of parallel fibers are characteristic of F, while the presence of epithelial hyperplasia, inflammatory infiltrate and parallel collagen fibers are characteristics of HI. These results led the 2nd article, which studied 18 F and 13 and IH, histologically prepared and stained by picrosirius red and direct blue for the direct quantitative assessment of collagen fibers and elastic fibers of the system, respectively, in the confocal laser microscope. The results confirmed the structural arrangement of collagen fibers found in Article 1, and indicate differences in the areas of collagen fibers in all regions studied. In order to evaluate the cellular and fibrous components of the 3 fibrous lesions, was developed the 3rd article. Specimens of the 3 lesions were studied in optical microscopy, to assess their populations of fibroblasts and inflammatory cells and the following components of fibrous connective tissue: collagen fibers, elastic fiber system, reticular fibers and oxytalan fibers. The results showed different arrangement and concentration of collagen fibers in the 3 lesions and a higher concentration of reticular fibers in HGF. The analysis of...