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https://www.readbyqxmd.com/read/28525515/lidocaine-prevents-oxidative-stress-induced-endothelial-dysfunction-of-the-systemic-artery-in-rats-with-intermittent-periodontal-inflammation
#1
Takumi Saito, Yasuhiro Yamamoto, Guo-Gang Feng, Yoshiaki Kazaoka, Yoshihiro Fujiwara, Hiroyuki Kinoshita
BACKGROUND: Periodontal inflammation causes endothelial dysfunction of the systemic artery. However, it is unknown whether the use of local anesthetics during painful dental procedures alleviates periodontal inflammation and systemic endothelial function. This study was designed to examine whether the gingival or systemic injection of lidocaine prevents oxidative stress-induced endothelial dysfunction of the systemic artery in rats with intermittent periodontal inflammation caused by lipopolysaccharides (LPS)...
June 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28523954/photometric-cielab-analysis-of-the-gingiva-a-novel-approach-to-assess-response-to-periodontal-therapy
#2
Yaniv Mayer, Ofir Ginesin, Eli E Machtei
OBJECTIVE: A new photometric method is introduced for the assessment of the gingival condition and changes following periodontal therapy. MATERIAL AND METHODS: Clinical data (probing depth, plaque index, gingival index, bleeding on probing, clinical attachment level) and photographs from 53 subjects (49% males, 51% females) undergoing initial periodontal treatment were used for this analysis. Each maxillary anterior area was photographed before treatment and three months after...
May 19, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28523319/amyloidosis-a-rare-cause-of-refractory-heart-failure-in-a-young-female
#3
Irina Iuliana Costache, Claudia Florida Costea, Mihai Danciu, Victor Vlad Costan, Viviana Aursulesei, Gabriela FlorenŢa Dumitrescu, Mihaela Dana Turliuc, Anca Sava
Cardiac amyloidosis may occur in any type of systemic amyloidosis. The clinical picture is often characterized by restrictive cardiomyopathy. We report the case of a 41-year-old female patient admitted to the Department of Cardiology with clinical signs of right heart failure: congested jugular veins, hepatomegaly, peripheral edema, ascites associated with atrial fibrillation, low values of arterial blood pressure and oliguria. Echocardiographic findings were helpful for the diagnosis of cardiac amyloidosis: enlarged atrial cavities, normal size ventricles, thickened ventricular septum and posterior left ventricle wall with normal left ventricular ejection fraction, mitral and tricuspid regurgitation...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523244/an-evaluation-of-the-gingival-biotype-and-the-width-of-keratinized-gingiva-in-the-mandibular-anterior-region-of-individuals-with-different-dental-malocclusion-groups-and-levels-of-crowding
#4
Yeşim Kaya, Özer Alkan, Sıddık Keskin
OBJECTIVE: To evaluate the relationship of gingival thickness (GT) and the width of keratinized gingiva (WKG) with different malocclusion groups and the level of crowding. METHODS: A total of 187 periodontally healthy subjects (121 females and 66 males) who presented at the Faculty of Dentistry in Yüzüncü Yıl University for orthodontic treatment were enrolled in the study. The individuals involved in the study were divided into three groups; Angle Class I malocclusion, Angle Class II malocclusion, and Angle Class III malocclusion...
May 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28518181/a-semi-automatic-algorithm-for-preliminary-assessment-of-labial-gingiva-and-alveolar-bone-thickness-of-maxillary-anterior-teeth
#5
Sheng-Hung Chen, Hsun-Liang Chan, Yongning Lu, Sim-Heng Ong, Hom-Lay Wang, Eng Hong Ko, Po-Chun Chang
PURPOSE: Soft and hard tissue volumes are critical for implant placement and long-term stability. Although the literature has adequately addressed tissue biotypes of Western populations, pertinent information about Asian populations is limited. This study aimed to evaluate the soft and hard tissue profiles of the maxillary anterior teeth of the Taiwanese population using a semi-automatic algorithm. MATERIALS AND METHODS: Cone beam computed tomography images of 11 adults with well-aligned maxillary anterior teeth were overlaid with those of cast models, based on the tooth crowns manually outlined by two independent observers...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28515694/fam20a-gene-mutation-amelogenesis-or-ectopic-mineralization
#6
Guilhem Lignon, Fleur Beres, Mickael Quentric, Stephan Rouzière, Raphael Weil, Muriel De La Dure-Molla, Adrien Naveau, Renata Kozyraki, Arnaud Dessombz, Ariane Berdal
Background and objective:FAM20A gene mutations result in enamel renal syndrome (ERS) associated with amelogenesis imperfecta (AI), nephrocalcinosis, gingival fibromatosis, and impaired tooth eruption. FAM20A would control the phosphorylation of enamel peptides and thus enamel mineralization. Here, we characterized the structure and chemical composition of unerupted tooth enamel from ERS patients and healthy subjects. Methods: Tooth sections were analyzed by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), X-Ray Diffraction (XRD), and X-Ray Fluorescence (XRF)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28512496/nonsurgical-management-of-a-large-periapical-lesion-a-case-report
#7
Sajedeh Ghorbanzadeh, Hengameh Ashraf, Sepanta Hosseinpour, Fatemeh Ghorbanzadeh
This case report describes the non-surgical management of a large cyst-like periapical lesion in the mandible of a 16-year-old female with the chief complaint of periodic swelling and pus drainage from the mandibular anterior region gingivae with no history of pain and traumatic accident in this area. Both mandibular central incisors had extensive caries. Root canals of both mandibular central incisors were filled with calcium hydroxide. After 10 days, endodontic therapy was carried out on both teeth. Clinical and radiographic re-evaluations at 3 and 12 months revealed progressing bone healing...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28512127/a-structure-derived-snap-trap-mechanism-of-a-multispecific-serpin-from-the-dysbiotic-human-oral-microbiome
#8
Theodoros Goulas, Miroslaw Ksiazek, Irene Garcia-Ferrer, Alicja M Sochaj-Gregorczyk, Irena Waligorska, Marcin Wasylewski, Jan Potempa, F Xavier Gomis-Rüth
Enduring host-microbiome relationships are based on adaptive strategies within a particular ecological niche. Tannerella forsythia is a dysbiotic member of the human oral microbiome that inhabits periodontal pockets and contributes to chronic periodontitis. To counteract endopeptidases from the host or microbial competitors, T. forsythia possesses a serpin-type proteinase inhibitor called miropin. While serpins from animals, plants, and viruses have been widely studied, those from prokaryotes have received only limited attention...
May 16, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28511493/isolated-central-nervous-system-cns-relapse-in-paediatric-acute-promyelocytic-leukaemia-a-systematic-review
#9
REVIEW
Smeeta Gajendra, Rashmi Ranjan Das, Rashi Sharma
INTRODUCTION: Extramedullary disease, as a whole, is rare in Acute Promyelocytic Leukaemia (APML). If at all relapse occurs, following sites are involved: Central Nervous System (CNS), skin, testes, mediastinum, gingiva, and ear. Isolated CNS relapses after complete morphological and molecular remission is rarer particularly in children. AIM: To review the literature systematically to find out the incidence of isolated CNS relapse in paediatric APML cases. MATERIALS AND METHODS: A systematic search of major databases (Medline, Pubmed and Google Scholar) was conducted...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28506773/antimicrobial-photodynamic-therapy-with-photosensitizer-in-ethanol-improves-oxidative-status-and-gingival-collagen-in-a-short-term-in-periodontitis
#10
Fernanda Maia Pillusky, Raquel Cristine Silva Barcelos, Luciana Taschetto Vey, Luisa Machado Barin, Victor de Mello Palma, Roberto Marinho Maciel, Karla Zanini Kantorski, Marilise Escobar Bürger, Cristiane Cademartori Danesi
BACKGROUND: This study evaluated the antimicrobial photodynamic therapy (aPDT) effects using the methylene blue (MB) in ethanol 20% on systemic oxidative status and collagen content from gingiva of rats with periodontitis. METHODS: Rats were divided into five experimental groups: NC (negative control; no periodontitis); PC (positive control; periodontitis without any treatment); SRP (periodontitis and scaling and root planing), aPDT I (periodontitis and SRP+aPDT+MB solubilized in water), and aPDT II (periodontitis and SRP+aPDT+MB solubilized in ethanol 20%)...
May 12, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28494608/parenteral-nutrition-in-childhood-and-consequences-for-dentition-and-gingivae
#11
D Olczak-Kowalczyk, M Danko, E Banaś, D Gozdowski, K Popińska, E Krasuska-Sławińska, J Książyk
AIM: Assessment of dentition in children under parenteral nutrition, risk factors for caries, and dental developmental abnormalities. MATERIALS AND METHODS: The study involved 63 patients (aged 2.25-16.6 years), i.e. 32 subjects receiving parenteral nutrition for a mean period of 5.6±2.94 years, and 31 healthy control subjects. Oral hygiene (OHI-S, PL-I), gingival (GI), and dentition status (caries, DMFT/dmft, enamel defects, shape alterations), frequency of oral meals and frequency of cariogenic snacks consumption were evaluated...
March 2017: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28491933/wnt-and-bmp-signaling-crosstalk-in-regulating-dental-stem-cells-implications-in-dental-tissue-engineering
#12
Fugui Zhang, Jinglin Song, Hongmei Zhang, Enyi Huang, Dongzhe Song, Viktor Tollemar, Jing Wang, Jinhua Wang, Maryam Mohammed, Qiang Wei, Jiaming Fan, Junyi Liao, Yulong Zou, Feng Liu, Xue Hu, Xiangyang Qu, Liqun Chen, Xinyi Yu, Hue H Luu, Michael J Lee, Tong-Chuan He, Ping Ji
Tooth is a complex hard tissue organ and consists of multiple cell types that are regulated by important signaling pathways such as Wnt and BMP signaling. Serious injuries and/or loss of tooth or periodontal tissues may significantly impact aesthetic appearance, essential oral functions and the quality of life. Regenerative dentistry holds great promise in treating oral/dental disorders. The past decade has witnessed a rapid expansion of our understanding of the biological features of dental stem cells, along with the signaling mechanisms governing stem cell self-renewal and differentiation...
December 2016: Genes & Diseases
https://www.readbyqxmd.com/read/28483472/neck-failure-after-elective-neck-dissection-in-patients-with-oral-squamous-cell-carcinoma
#13
Hiroaki Shimamoto, Yu Oikawa, Toshimitsu Osako, Hideaki Hirai, Yumi Mochizuki, Kae Tanaka, Hirofumi Tomioka, Hiroyuki Harada
OBJECTIVE: Analysis of the incidence and clinical relevance of neck failure after elective neck dissection (END) in patients with oral squamous cell carcinoma (OSCC). STUDY DESIGN: A retrospective study of 188 patients with OSCC without cervical lymph node metastases was conducted; these patients had undergone END from 2005 to 2015. The most common primary tumor location was lower gingiva, followed by tongue. RESULTS: Supraomohyoid neck dissection (SOHND) was the most common procedure...
March 10, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28479702/inflammatory-myofibroblastic-tumor-of-mandible-a-rare-case-report-and-review-of-literature
#14
Rajani Korlepara, Venkateswara Rao Guttikonda, Jayakiran Madala, Sravya Taneeru
Inflammatory pseudotumor is a term given to different neoplastic and nonneoplastic entities that have a common histological appearance, which comprises spindle cell proliferation with a prominent chronic inflammatory cell infiltrate. Inflammatory myofibroblastic tumor (IMT) is an uncommon lesion with distinctive clinical, pathological and molecular features and is considered to be pseudotumor for the past two decades due to its appearance. IMT is an intermediate soft tissue tumor which was first observed in lungs...
January 2017: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/28478985/a-multicenter-randomized-controlled-clinical-trial-comparing-the-use-of-displacement-cords-an-aluminum-chloride-paste-and-a-combination-of-paste-and-cords-for-tissue-displacement
#15
Erna R Einarsdottir, Niklaus P Lang, Thor Aspelund, Bjarni E Pjetursson
STATEMENT OF PROBLEM: Gingival recession after soft tissue displacement for impression making in fixed prosthodontics may pose a problem for treatment success in the esthetic areas of the mouth. Knowledge about the soft tissue reaction of common gingival displacement methods is limited. PURPOSE: The purpose of this clinical randomized controlled trial (RCT) was to evaluate changes in the marginal soft tissue height with 3 different gingival tissue displacement techniques for definitive impression making of natural teeth...
May 5, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28476467/painful-trigeminal-neuropathy-attributed-to-a-space-occupying-lesion-presenting-as-a-toothache-a-report-of-4-cases
#16
Noboru Noma, Makoto Hayashi, Isao Kitahara, Andrew Young, Maasa Yamamoto, Kosuke Watanabe, Yoshiki Imamura
Painful trigeminal neuropathy attributed to a space-occupying lesion (code 13.1.2.5 in the International Classification of Headache Disorders, 3rd edition [beta version]) is an orofacial pain condition that has characteristics of classical trigeminal neuralgia but is caused by a space-occupying lesion. We present 4 cases of intracranial lesions mimicking odontogenic pain as follows: case 1, a 61-year-old woman presented with a chief complaint of aching soreness in the right mandibular molar area for 1 year; case 2, a 59-year-old man presented with severe pain in the left maxillary and mandibular molars; case 3, a 72-year-old man presented with a chief complaint of facial shock-like pain on the left side; and case 4, a 75-year-old man presented with a chief complaint of paroxysmal pain and numbness in the buccal gingiva of the right mandibular molar region...
May 2, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28475084/emergent-gingival-cyst-of-the-adult
#17
John K Brooks, Justin W Kleinman, John R Basile
The gingival cyst of the adult is a relatively rare, benign odontogenic cyst that maintains an insidious growth rate. This article describes a case of a diminutive fibrotic overgrowth arising on the labial interproximal gingiva between the mandibular right canine and first premolar in a 68-year-old woman. Within 1 year, the lesion had increased in size and appeared vesicular. The morphologic changes warranted surgical excision and histopathologic review. The lesion was diagnosed as a gingival cyst. At a 4.5-month recall appointment, there was no evidence of recurrence...
May 2017: General Dentistry
https://www.readbyqxmd.com/read/28472720/epithelial-to-mesenchymal-transition-in-cyclosporine-a-induced-rat-gingival-overgrowth
#18
Fei Yang, Jing Lu, Youcheng Yu, Yiming Gong
BACKGROUND AND OBJECTIVE: Epithelial-mesenchymal transition (EMT) has been proved to occur in drug-induced gingival overgrowth. However, the specific pathogenic mechanism remains uncertain. The aim of this study is to examine the expression of EMT markers in cyclosporine A (CsA)-induced gingival overgrowth in rat models. MATERIAL AND METHODS: Thirty-six rats were randomly divided into two groups. The experimental group received CsA therapy subcutaneously in a daily dose of 10mg/kg, and the other group was used as a control...
April 23, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28469831/hereditary-gingival-fibromatosis-characteristics-and-treatment-approach
#19
Pedro J Almiñana-Pastor, Pedro J Buitrago-Vera, Francisco M Alpiste-Illueca, Montserrat Catalá-Pizarro
Hereditary gingival fibromatosis (HGF) is a rare disorder characterized by a benign, non-hemorrhagic, fibrous gingival overgrowth that can appear in isolation or as part of a syndrome. Clinically, a pink gingiva with marked stippling can be seen to cover almost all the tooth, in many cases preventing eruption. HGF usually begins during the transition from primary to permanent teeth, giving rise to a condition that can have negative psychological effects at that age. As it does not resolve spontaneously, the treatment of choice is gingivectomy, which can be performed with an internal or external bevel incision, depending on each case and bearing in mind the changes that will take place at the dentogingival junction (DGJ)...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28469672/stemness-maintenance-properties-in-human-oral-stem-cells-after-long-term-passage
#20
Francesca Diomede, Thangavelu Soundara Rajan, Valentina Gatta, Marco D'Aurora, Ilaria Merciaro, Marco Marchisio, Aurelio Muttini, Sergio Caputi, Placido Bramanti, Emanuela Mazzon, Oriana Trubiani
Background. Neural crest-derived mesenchymal stem cells (MSCs) from human oral tissues possess immunomodulatory and regenerative properties and are emerging as a potential therapeutic tool to treat diverse diseases, such as multiple sclerosis, myocardial infarction, and connective tissue damages. In addition to cell-surface antigens, dental MSCs express embryonic stem cell markers as neural crest cells originate from the ectoderm layer. In vitro passages may eventually modify these embryonic marker expressions and other stemness properties, including proliferation...
2017: Stem Cells International
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