scholarly journals Datos histopatológicos para la identificación de una reacción por material de relleno en patología bucal. Revisión bibliográfica y presentación de tres casos / Histopathologic features to identify a filler material reaction in oral pathology. Literature..

2016 ◽  
Vol 35 (74) ◽  
Author(s):  
Ana Celia Sulbarán Prieto ◽  
Jairo Alberto Bustillo Rojas

<strong>ABSTRACT. </strong><strong><em>Background:</em></strong> Filler materials injections in orofacial tissues is a practice that grows annually and may be followed by a reaction involved from small inflammatory nodules to large and diffuse granulomas, it’s may develop month or years after de procedure, making it difficult the diagnosis. <strong><em>Objectiv</em></strong><em>e:</em> Identify histopathological features of a reaction to materials filler through a literature review and report three cases in orofacial region. <strong><em>Method:</em> </strong>We made an exhaustive investigation of scientific articles related with filler materials commonly used in orofacial region and clinical cases of foreign body reaction by filler material with emphasis in the histopathological features. The search was made in the database PubMed and Scholar Google from the 2004 - 2015 period. Additionally, we collect three cases diagnosed as foreign body reaction by exogenous material in oral pathology laboratory of Anzoátegui state, Venezuelan. <strong><em>Results:</em> </strong>We found just 10 articles with clinical cases and its histopathological features. Other 3 review articles explain specific characteristics for each filler material. Based on this review, we confirm the 3 cases presented. <strong><em>Conclusions:</em></strong> Few studies describe the histopathological features of a filler material reaction and the kind of material; nevertheless, were synthesized for the confirmation of cases.

2013 ◽  
Vol 2013 ◽  
pp. 1-3
Author(s):  
Rathy Ravindran ◽  
Anila Karunakaran

Orofacial granulomatosis is a granulomatous disease of orofacial region, which can occur for a variety of reasons. The clinical features are highly variable and sometimes so insidious that signs and symptoms are not frequently severe to cause alarm. The lips are most commonly involved with persistent/recurrent swelling. The medical history is very important as Crohn’s disease and sarcoidosis can present oral manifestation. Other causes like mycobacterial infection, foreign body reaction, fungal infection, and allergy were excluded with further investigation to establish diagnosis. Here and we report a case of orofacial granulomatosis with a review of the literature.


2014 ◽  
Vol 2014 ◽  
pp. 1-2
Author(s):  
Rintaro Shibuya ◽  
Yuichiro Endo ◽  
Akihiro Fujisawa ◽  
Miki Tanioka ◽  
Yoshiki Miyachi

Pencil core granuloma is characterized by a delayed foreign-body reaction against retained fragments of pencil lead. Previous case reports presented pencil core granuloma resembling malignant melanoma, haemangioma, or soft tissue sarcoma. We present a case of pencil core granuloma arising from the palm 25 years after the initial injury. The patient presented a bluish nodule that had been present over 25 years before. The nodule initially measured 5 mm in diameter. However, five years before presentation, it suddenly enlarged to the size of 30 mm during six months. Computed tomography (CT) of the lesion revealed a linear radiopaque structure of 8 mm long with a mass on its distal end. Surgical resection revealed a bluish muddy mass and pencil lead. Histological examination revealed degenerative tissue with calcification surrounded by massive amounts of black granular material in the middle and lower dermis.


2011 ◽  
Vol 75 (11) ◽  
pp. 1455-1458 ◽  
Author(s):  
Hye Jin Lim ◽  
Eun-So Lee ◽  
Hun Yi Park ◽  
Keehyun Park ◽  
Yun-Hoon Choung

2020 ◽  
Vol 62 (9) ◽  
pp. 891-900
Author(s):  
Jonas Hensel ◽  
Arne Kromm ◽  
Thomas Nitschke-Pagel ◽  
Jonny Dixneit ◽  
Klaus Dilger

Abstract The use of low transformation temperature (LTT) filler materials represents a smart approach for increasing the fatigue strength of welded high strength steel structures apart from the usual procedures of post weld treatment. The main mechanism is based on the effect of the low start temperature of martensite formation on the stress already present during welding. Thus, compressive residual stress formed due to constrained volume expansion in connection with phase transformation become highly effective. Furthermore, the weld metal has a high hardness that can delay the formation of fatigue cracks but also leads to low toughness. Fundamental investigations on the weldability of an LTT filler material are presented in this work, including the characterization of the weld microstructure, its hardness, phase transformation temperature and mechanical properties. Special attention was applied to avoid imperfections in order to ensure a high weld quality for subsequent fatigue testing. Fatigue tests were conducted on the welded joints of the base materials S355J2 and S960QL using conventional filler materials as a comparison to the LTT filler. Butt joints were used with a variation in the weld type (DY-weld and V-weld). In addition, a component-like specimen (longitudinal stiffener) was investigated where the LTT filler material was applied as an additional layer. The joints were characterized with respect to residual stress, its stability during cyclic loading and microstructure. The results show that the application of LTT consumables leads to a significant increase in fatigue strength when basic design guidelines are followed. This enables a benefit from the lightweight design potential of high-strength steel grades.


Neurology ◽  
1967 ◽  
Vol 17 (4) ◽  
pp. 337-337 ◽  
Author(s):  
T. Yanagihara ◽  
N. P. Goldstein ◽  
H. J. Svien ◽  
R. C. Bahn

2016 ◽  
Vol 43 (1) ◽  
pp. 40-45 ◽  
Author(s):  
Hong Bae Jeon ◽  
Dong Hee Kang ◽  
Ja Hea Gu ◽  
Sang Ah Oh

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