Abstract:
OBJECTIVES:To describe the histopathological features of pleomorphic adenoma (PA) with special reference to the epithelial and mesenchymal components. STUDY DESIGN:189 PA were selected and classified as myxoid or stroma-rich, cellular or cell-rich and classic (balanced amount of epithelial and stromal components). The epithelial component was analyzed according to the presence of plasmacytoid, spindle, clear, squamous, basaloid, cubic, oncocytoid and mucous cells and the morphological pattern (trabecular, ductal, cystic and solid). The stromal component was analyzed according to the presence of myxoid, hyaline, chondroid or calcified tissue. RESULTS:Plasmacytoid cells were the most commonly found cellular type followed by fusiform and cuboidal cells. Trabeculae and duct-like structures were the most frequent patterns formed by the epithelial cells. Myxoid and chondroid stroma were the most frequently found mesenchymal-like tissue usually forming the so called myxochondroid stroma. CONCLUSION:The knowledge of the immense variety of cells, architectures and morphological characteristics present in PA of the salivary gland is essential for a correct diagnosis.
journal_name
Med Oral Patol Oral Cir Bucaljournal_title
Medicina oral, patologia oral y cirugia bucalauthors
Ito FA,Jorge J,Vargas PA,Lopes MAsubject
Has Abstractpub_date
2009-02-01 00:00:00pages
E57-61issue
2eissn
1698-4447issn
1698-6946pii
5123658799journal_volume
14pub_type
杂志文章abstract:BACKGROUND:Extensive literature exists about the use of the BFP in the treatment of oral defects but, to our knowledge, no article refers to the use of the BFP as a substitute of the membrane barriers for treatment of peri-implant bone defects. The aim was to evaluate the use of the buccal fat pad as a coating material...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.20212
更新日期:2015-11-01 00:00:00
abstract::The appearance of a solitary lateral cervical cystic mass as the only initial presenting symptom of occult thyroid carcinoma is uncommon. Its presence is often misdiagnosed due to the more frequent branchial cyst in young people. Although oronasopharyngeal squamous cell carcinoma has been reported as the main cause of...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND:Whole Slide Imaging (WSI) is an alternative method to light microscopy (LM). However, few studies have compared the diagnostic agreement between WSI and LM, especially to grade oral epithelial dysplasia (OED). The purpose of this study was to evaluate the variability in grading OED by the World Health Organi...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,多中心研究
doi:10.4317/medoral.23854
更新日期:2021-01-01 00:00:00
abstract:AIM:To visualize by atomic force microscopy the alterations induced on Enterococcus. faecalis surface after treatment with 2 types of laser: Erbium chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser and Diode laser. MATERIAL AND METHODS:Bacterial suspensions from overnight cultures of E. faecalis were irradia...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.19991
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Human cytomegalovirus (HCMV) appears to be more frequent in periodontally affected patients than in healthy control groups. Based on this assumption, it has been suggested that HCMV may play a role in the pathogenesis of periodontal disease. OBJECTIVE:The objective of this uncontrolled study was to assess t...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.15.e292
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:Oral rehabilitation of atrophic maxillae features high complexity, for which there are several therapeutic modalities reported on scientific literature. Zygomatic implant placement is a viable option that features low morbidity and allows immediate prosthetic loading. The purpose of the present study was to ...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:10.4317/medoral.23569
更新日期:2020-07-01 00:00:00
abstract:OBJECTIVE:Several studies have focused on the relationship among serotype distribution, ethnical status and geographic populations, and periodontal conditions. Studies that have investigated the prevalence and the distribution of A. actinomycetemcomitans serotypes and the relation between the different serotypes of the...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:10.4317/medoral.19304
更新日期:2014-03-01 00:00:00
abstract:BACKGROUND:Evaluation of the efficacy and safety of a mandibular advancement device (MAD) (KlearwayTM) in the treatment of mild-to-moderate obstructive sleep apnea and chronic roncopathy. MATERIAL AND METHODS:A randomized, placebo-controlled, double blinded, and crossover clinical trial was conducted. Placebo device (...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,随机对照试验
doi:10.4317/medoral.20649
更新日期:2015-09-01 00:00:00
abstract:BACKGROUND:Relapse of granulomatous epulis is common after surgery because of local irritations, hormonal level in vivo, or incomplete resection. Currently, if recurrence occurs, then extraction of the teeth adjacent to the lesion is commonly performed, which may influence the aesthetics or masticatory function. Thus, ...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.21422
更新日期:2017-03-01 00:00:00
abstract:AIM:To assess the prevalence of oral mucosa lesions (OL) in a group of kidney transplant (KT) patients, and analyze possible OL associations with one another and with drugs use and relevant clinical and laboratory variables. METHODOLOGY:Transversal study, in which consecutive KT patients from the nephrology outpatient...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:
更新日期:2005-05-01 00:00:00
abstract:OBJECTIVES:to evaluate the effect of sodium hypochlorite (NaOCl) treatment on surface dentin roughness (Ra) and contact angle (CA) when using Prime&Bond NT adhesive (PB NT). STUDY DESIGN:Extracted human third molars were sectioned to expose flat, superficial and deep dentin surfaces. CA and Ra were measured (1) before...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.17654
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:To compare the long-term sealing ability of GuttaFlow® using different obturation techniques. STUDY DESIGN:Three hundred teeth, prepared with a crown-down technique, were divided into thirty experimental groups (n=10) to evaluate the apical and coronal leakage, at 3, 30 and 120 days, of lateral compaction gu...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.15.e936
更新日期:2010-11-01 00:00:00
abstract:OBJECTIVE:The aim of this study was to compare the effects in terms of resistance to fracture of the mandibular condyle and femoral head following different doses of zoledronic acid in an animal model. STUDY DESIGN:A total of 80 adult male Sprague-Dawley rats were included in a prospective randomized study. The animal...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.18449
更新日期:2013-05-01 00:00:00
abstract::Worldwide, the use of cocaine has an increased over the years, various secondary effects have been described. Here we present a 48 years old female with a 2-month evolution bucconasal ulcer in the hard palate induced by cocaine usage accompanied by swallow and phonation dysfunctions. Ethiopathogenesis, differential di...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:
更新日期:2006-05-01 00:00:00
abstract:BACKGROUND:The Franciscan Hospital for Children Oral Health-Related Quality of Life questionnaire (FHC-OHRQOL-Q) is an instrument designed specifically for parents and caregivers of patients with special needs that has not yet been applied in Spain. The aim of this study was to adapt it to Spanish and evaluate its reli...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.22553
更新日期:2018-09-01 00:00:00
abstract::We grouped as oral lichenoid disease (OLD) a series of chronic inflammatory processes with autoimmune base that affect the epithelium of the oral mucosa. This disease presents in 2% of the population with a marked predilection for the female gender, especially perimenopausal women. Clinically, it is characterized by t...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:
更新日期:2009-03-01 00:00:00
abstract:OBJECTIVES:The principle of the intraosseous anesthesia (IOA) relies on the perforation of the cortical plate of the bone for direct application of the local anesthetic solution into the underlying cancellous structures. During this procedure, IOA needles might accidentally come in contact with the tooth roots. The aim...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.18386
更新日期:2013-01-01 00:00:00
abstract::Since the introduction of osseointegrated implant treatment, odontology, and in particular the area of prosthodontic replacement of lost teeth, has evolved in an unimaginable way, to the extent that the age-old idea of "restitutio ad integrum" has almost become possible. Implant treatment has a high success rate that ...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:
更新日期:2007-08-01 00:00:00
abstract:OBJECTIVE:This article presents the results of a retrospective study of the frequency and classification of odontogenic tumors recorded at four centers of diagnostic pathology in Rio de Janeiro, Brazil. STUDY DESIGN:All medical records and microscopic slides of odontogenic tumor specimens for the years 1997 to 2007 we...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,多中心研究
doi:10.4317/medoral.17630
更新日期:2012-05-01 00:00:00
abstract:OBJECTIVES:Early detection and treatment of an oral squamous cell carcinoma (OSCC) is critical because of its rapid growth, frequent lymph-node metastasis, and poor prognosis. However, no clinically-valuable methods of early diagnosis exist, and genetic analysis of OSCCs has yielded no biomarkers. STUDY DESIGN:We inve...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.20229
更新日期:2015-03-01 00:00:00
abstract::The aim of this article is to describe a case of leiomyosarcoma of the mandible with immunohistochemical analysis that was useful in making the final diagnosis. A 40-year-old woman was referred to the Stomatology Clinic of Sao Paulo Tatuape Hospital, for evaluation of a lesion on the left side of the mandible. This le...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract:BACKGROUND:Lichen sclerosus is a mucocutaneous autoimmune disease which might be initiated by infectious pathogens as Borrelia Bugrdorferi and HPV. This disease shows destructive potential and is rarely diagnosed in oral mucosa. The purpose of this paper is to evaluate the characteristics of cases described in literatu...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:10.4317/medoral.21606
更新日期:2017-07-01 00:00:00
abstract:BACKGROUND:Myofibroblasts (MF) and angiogenesis are important factors in the development and expansion of cystic lesions, where these cells secrete growth factors and proteases, stimulating angiogenesis, matrix deposition and cell migration, affecting the growth of these periapicopathies. The present study aimed to eva...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.23605
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:The Vertical Alveolar Distraction Osteogenesis (VADO) technique is an excellent solution for bone and soft tissue neoformation in areas in which there has been significant bone atrophy that hinders normal rehabilitation using dental implants. The goal of this systematic review is to analyze the most relevant...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.22645
更新日期:2018-11-01 00:00:00
abstract:BACKGROUND:To investigate the occupational profile, educational level, marital status and deleterious habits to the health of patients with maxillofacial fractures of a population of northeastern Brazil. MATERIAL AND METHODS:A retrospective study of patients records admitted to the Division of Oral and Maxillofacial S...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.21969
更新日期:2018-01-01 00:00:00
abstract:INTRODUCTION:The temporomandibular disorders (TMDs) have been identified as the most important cause of pain in the facial region. The low level laser therapy (LLLT) has demonstrated to have an analgesic, anti-inflammatory and biostimulating effects. The LLLT is a noninvasive, quick and safe, non-pharmaceutical interve...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章,评审
doi:10.4317/medoral.18794
更新日期:2013-07-01 00:00:00
abstract:INTRODUCTION:Bracket debonding from the tooth surface is a common problem in fixed orthodontics. The aims of the present study were to assess the bond strength and failure sites in two ways of bonding technique, with metallic and ceramic brackets. MATERIALS AND METHODS:One hundred premolars were assigned to 4 groups o...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.17024
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:To assess the knowledge and preventive attitudes that Spanish dentists have towards oral cancer, before and after an educational intervention. METHODS:A quasi-experimental study based on a nationwide intervention. All Spanish dentists were offered an on-site course on oral cancer. An individual questionnaire...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.15.e422
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:Odontogenic keratocyst (OKC) is an odontogenic developmental cyst that presents distinct clinical behavior. This lesion has been described as dental cysts with keratinization since the 1930s, however the term OKC was established in 1956. This study aims to determine the frequency and features of OKC in child...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.23185
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:To characterize the surface topography of several dental implants for commercial use. MATERIAL AND METHODS:Dental implants analyzed were Certain (Biomet 3i), Tissue Level (Straumann), Interna (BTI), MG-InHex (MozoGrau), SPI (Alphabio) and Hikelt (Bioner). Surface topography was ascertained using a confocal ...
journal_title:Medicina oral, patologia oral y cirugia bucal
pub_type: 杂志文章
doi:10.4317/medoral.20333
更新日期:2016-09-01 00:00:00