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Medicina Oral, Patología Oral y Cirugía Bucal

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https://www.readbyqxmd.com/read/28390135/comparative-histological-and-immunohistochemical-study-of-ameloblastomas-and-ameloblastic-carcinomas
#1
M Martínez-Martínez, A Mosqueda-Taylor, R Carlos-Bregni, F-R Pires, W Delgado-Azanero, R Neves-Silva, B Aldape-Barrios, O Paes-de Almeida
BACKGROUND: This study aimed to compare the histological and immunohistochemical characteristics of ameloblastomas (AM) and ameloblastic carcinomas (AC). MATERIAL AND METHODS: Fifteen cases of AM and 9 AC were submitted to hematoxilin and eosin (H&E) and immunohistochemical analysis with the following antibodies: cytokeratins 5,7,8,14 and 19, Ki-67, p53, p63 and the cellular adhesion molecules CD138 (Syndecan-1), E-cadherin and β-catenin. The mean score of the expression of Ki-67 and p53 labelling index (LIs) were compared between the groups using the t test...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390134/primordial-odontogenic-tumor-an-immunohistochemical-profile
#2
R Bologna-Molina, T Mikami, V Pereira-Prado, F-R Pires, R Carlos-Bregni, A Mosqueda-Taylor
BACKGROUND: Primordial Odontogenic Tumor (POT) is a recently described odontogenic tumor characterized by a variably cellular loose fibrous tissue with areas similar to the dental papilla, covered by cuboidal to columnar epithelium that resembles the internal epithelium of the enamel organ, surrounded at least partly by a delicate fibrous capsule. The purpose of this study was to investigate the possible histogenesis and biological behavior of this rare tumor by means of a wide immunohistochemical analysis of its epithelial and mesenchymal components...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390133/histopathological-characterization-of-the-oral-lichenoid-disease-subtypes-and-the-relation-with-the-clinical-data
#3
J Alberdi-Navarro, X Marichalar-Mendia, M-J Lartitegui-Sebastián, M-L Gainza-Cirauqui, M-A Echebarria-Goikouria, J-M Aguirre-Urizar
BACKGROUND: The aim of the study was to analyze the histopathological characteristics of samples with a diagnosis of oral lichenoid disease (OLD) and their link with the location and the type of clinical lesion, and the clinicopathological subtypes. MATERIAL AND METHODS: Retrospective study on 85 consecutive patients diagnosed with OLD (58 women and 27 men, mean age of 57.7 years). Clinical and histopathological characterization of each case (modified WHO criteria)...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390132/a-5-year-retrospective-longitudinal-study-on-the-incidence-and-the-risk-factors-of-osteonecrosis-of-the-jaws-in-patients-treated-with-zoledronic-acid-for-bone-metastases-from-solid-tumors
#4
M Manfredi, G Mergoni, M Goldoni, S Salvagni, E Merigo, M Meleti, P Vescovi
BACKGROUND: The aim of this study was to evaluate the incidence and the risk factors of osteonecrosis of the jaw (ONJ) in a group of patients treated with zoledronic acid (ZA) for bone metastases from solid tumors and enrolled in a preventive dental program. MATERIAL AND METHODS: This 5-year retrospective longitudinal study included all consecutive oncological patients who underwent at least one infusion with ZA between 2004 and 2011 for bone metastases due to solid neoplasms...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390131/radiodensitometric-study-for-evaluation-of-bone-mineral-density-around-dental-implants-after-zoledronic-acid-treatment-in-ovariectomized-rats
#5
S Dikicier, E Dikicier, U Karacayli, B Erguder
BACKGROUND: The purpose of this study was to evaluate the effects of intravenous zoledronic acid applied systemically on osseointegration of dental implants and the surrounding bone mineral density (BMD) in the ovariectomized rats. MATERIAL AND METHODS: 36 rats were divided into three groups: control (CTRL), ovariectomy (OVX), and ovariectomy-zoledronic acid (OVX/ZOL). The rats in the CTRL group underwent sham surgery, while rats in OVX and OVX / ZOL group underwent ovariectomy...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390130/oral-diseases-a-14-year-experience-of-a-chilean-institution-with-a-systematic-review-from-eight-countries
#6
C Rivera, C Jones-Herrera, P Vargas, B Venegas, D Droguett
BACKGROUND: Retrospective studies to assess the distribution of oral diseases (ODs) are helpful in estimating the prevalence of oral diagnoses in the population, and thus help in preventive and curative services. Prevalence and frequency data for ODs are available from many countries, but information from Chile is scarce. MATERIAL AND METHODS: This study investigated the frequency of OD in a Chilean population. For this, we included all patients treated at the University of Talca (UTALCA, Chile) between 2001 and 2014...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390129/evaluation-of-strain-values-of-critical-anatomic-regions-for-two-different-pterygomaxillary-approaches-in-le-fort-i-osteotomy-an-experimental-study
#7
Y-B Ozdemir, D Dolanmaz, A Esen, H Terzioglu, H Saglam
BACKGROUND: The purpose of this experimental study was to measure stresses both on the pterygoid plates and the skull base following two different pterygomaxillary approaches in Le Fort I osteotomy. MATERIAL AND METHODS: The prepared skull models were randomly divided into 2 groups of 7. In the first group (A), the pterygomaxillary area was left intact. In the second group (B), pterygomaxillary separation was performed with a fine bur. The stresses were measured by using strain gauges...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390128/masticatory-muscle-activity-evaluation-by-electromyography-in-subjects-with-zygomatic-implants
#8
M de Rossi, M Palinkas, B de Lima-Lucas, C-M Santos, M Semprini, L-F Oliveira, I Hallak-Regalo, E-O Bersani, R Miglioranca, S Siéssere, S-C Hallak-Regalo
BACKGROUND: Zygomatic implants are an alternative treatment in the rehabilitation of atrophic maxilla to promote stability in the stomatognathic system. The aim of this study was to compare the electromyographic (EMG) activity of masseter and temporalis muscles in controls and in individuals with complete implant-supported dentures anchored in the zygomatic bone. MATERIALS AND METHODS: Fifty-four volunteers of both genders (mean age 52.5 years) were selected and distributed into two groups: Individuals with zygomatic implant (ZIG; n=27) and fully dentate patients (CG; n=27)...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390127/electromyographic-activity-of-the-jaw-muscles-and-mandibular-kinematics-in-young-adults-with-theoretically-ideal-dental-occlusion-reference-values
#9
B Campillo, C Martín, J-C Palma, A-D Fuentes, J-A Alarcón
BACKGROUND: A necessary step to use neuromuscular analysis as diagnostic tool is to establish normal reference values for the physiological range in a healthy population. Surface electromyographic (sEMG) activity of the jaw muscles and mandibular kinematics were measured in young adults with theoretically ideal dental occlusion to determine normal reference values during different tasks. Differences between the sexes were evaluated. MATERIAL AND METHODS: Forty young adults (20 men, 20 women; mean age 22...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390126/oral-thrombus-report-of-122-cases-with-clinically-descriptive-data
#10
P-L Tobouti, F-M Pigatti, M-C Martins-Mussi, S-C-O Machado de Sousa
BACKGROUND: The aim of the present study was to assess the frequency and characterize clinic-pathologic aspects of thrombus occurring as a single lesion or in association with other oral pathologies. MATERIAL AND METHODS: 122 cases of thrombus from the oral cavity were retrieved. Information regarding site of the lesion, age, sex and clinical diagnosis or hypothesis and associated lesions were collected from the patients' records. RESULTS: The lesions occurred in a wide age range but the 5th decade was the most prevalent and female patients were more affected...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390125/impact-of-early-childhood-caries-and-its-treatment-under-general-anesthesia-on-orofacial-function-and-quality-of-life-a-prospective-comparative-study
#11
V Collado, H Pichot, C Delfosse, C Eschevins, E Nicolas, M Hennequin
BACKGROUND: Early Childhood Caries (ECC) has become a major public health concern worldwide, mostly affecting children from disadvantaged families in increasingly severe forms. This condition has been frequently reported to alter children's nutrition, growth and general development. It negatively impacts their quality of life, through painful episodes and severe eating difficulties. While this period is crucial for oral praxes development, the impact of dental state on oro-facial functions is poorly documented...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390124/clear-cell-changes-in-salivary-gland-neoplasms-a-20-year-retrospective-study
#12
T Woods, S Fitzpatrick, D Cohen, M Islam, I Bhattacharyya
BACKGROUND: Clear cells are observed histopathologically in both benign and malignant neoplasms but their presence in salivary gland tumors has not been extensively documented. MATERIAL AND METHODS: With IRB approval, the archive of the University of Florida College of Dentistry oral pathology biopsy service was retrospectively searched from 1994-2014 for all benign and malignant salivary tumors. Epidemiological data, tumor location and duration, and type of tumor were recorded...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390123/metastatic-carcinoma-of-the-oral-region-an-analysis-of-21-cases
#13
Y-H Lee, J-I Lee
BACKGROUND: Metastatic carcinoma to the jaws and oral region are very rare, representing less than 1% of all oral tumors. Unfortunately, oral metastasis is usually manifestation of an advanced stage of primary cancer, and indicates widespread disease and poor prognosis. MATERIAL AND METHODS: In this retrospective study, a total of 2039 patients with history of oral malignant tumor between 1980 and 2012 at Seoul National University Dental Hospital were evaluated...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390122/orbital-apex-syndrome-affecting-head-and-neck-cancer-patients-a-case-series
#14
A-C Prado-Ribeiro, A-C Luiz, M-A Montezuma, M-P Mak, A-R Santos-Silva, T-B Brandão
BACKGROUND: Orbital apex syndrome (OAS) is a complex and uncommon disorder that typically damages multiple cranial nerves in association with optic nerve dysfunction. OAS is associated with several different pathologies, however; only a few cases have been reported in association with head and neck cancer (HNC) so far. MATERIAL AND METHODS: A case series of HNC patients diagnosed with OAS is described including clinicopathological data, image findings, and disease outcome...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390121/probiotics-and-oral-health-a-systematic-review
#15
M Seminario-Amez, J López-López, A Estrugo-Devesa, R Ayuso-Montero, E Jané-Salas
BACKGROUND: Probiotics are microorganisms, mainly bacteria, which benefit the host's health. Many studies support the role of probiotics as a contributor to gastrointestinal health, and nowadays many authors are trying to prove its influence in oral health maintenance. OBJECTIVES: To review the published literature with the purpose of knowing the importance of using probiotics as a preventive and therapeutic method for oral infectious diseases management. MATERIAL AND METHODS: An electronic search in PubMed database with the keywords "oral health AND probiotics AND dentistry" was conducted...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390120/importance-of-absorbable-surgical-sutures-for-the-prevention-of-stitch-abscess-after-surgery-in-patients-with-oral-squamous-cell-carcinoma
#16
N Yamamoto, Y Takahashi, T Kono, A Abe, K Kawamura, T Joujima, N Wakasugi-Sato, S Nishimura, M Oda, T Tanaka, S Kito, K Kawano, Y Morimoto
BACKGROUND: To elucidate the significance of absorbable surgical sutures in the occurrence of stitch abscess after surgery in patients with oral squamous cell carcinoma (SCC). MATERIAL AND METHODS: The subjects were 251 patients who underwent excision and/or reconstruction and/or neck dissection for oral SCC using absorbable surgical sutures. Detection rates and characteristics of patients with stitch abscess were retrospectively evaluated by comparing between our present and previous data...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28390119/ultrasound-hyperthermia-induces-apoptosis-in-head-and-neck-squamous-cell-carcinoma-an-in-vitro-study
#17
G Ren, H Jv, Z Tian, S-R Gvetadze, J Hu, M Zhao, G Zhou, C Zhang, Z Zhang
BACKGROUND: Hyperthermia is considered an efficient complement in the treatment of head and neck squamous cell carcinoma (HNSCC). Hyperthermia induces cell apoptosis in a temperature- and time-dependent manner. However, the molecular mechanism of hyperthermia remains unclear. The aim of this study was to investigate the mechanism of apoptosis induced by ultrasound hyperthermia in HNSCC cell lines HN-30 and HN-13. MATERIAL AND METHODS: We examined the dynamic changes of early apoptosis and secondary necrosis in HN-30 and HN-13 cells treated by hyperthermia at 42°C for 10 min...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28160595/salivary-mmp-9-in-the-detection-of-oral-squamous-cell-carcinoma
#18
A Peisker, G-F Raschke, M-D Fahmy, A Guentsch, K Roshanghias, J Hennings, S Schultze-Mosgau
BACKGROUND: Oral squamous cell carcinoma (OSCC) is the most common malignant tumour of the oral cavity. Detection of OSCC is currently based on clinical oral examination combined with histopathological evaluation of a biopsy sample. Direct contact between saliva and the oral cancer makes measurement of salivary metalloproteinase-9 (MMP-9) an attractive alternative. MATERIAL AND METHODS: In total, 30 OSCC patients and 30 healthy controls were included in this prospective study...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28160582/the-use-of-topical-corticosteroides-in-the-treatment-of-oral-lichen-planus-in-spain-a-national-survey
#19
L Piñas, A García-García, M Pérez-Sayáns, R Suárez-Fernández, M-H Alkhraisat, E Anitua
BACKGROUND: Explore the treatment of oral lichen planus with topical corticosteroids by the healthcare professionals in Spain. MATERIAL AND METHODS: A questionnaire targeted health professionals who treat OLP, in particular maxillofacial surgeons, dermatologist and dentist. The dissemination of the questionnaires was conducted through professional associations and dental and medical societies. The questionnaire was previously evaluated by means of a cognitive pre-test procedure to ensure that the questions were opportune and appropriate, understandable and accep-table among the professionals...
May 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28160594/risk-factors-associated-with-xerostomia-in-haemodialysis-patients
#20
R-M López-Pintor, L López-Pintor, E Casañas, L de Arriba, G Hernández
BACKGROUND: To determine the prevalence of xerostomia and hyposalivation in Haemodialysis (HD) patients, to clarify risk factors, assess patient's quality of life, and to establish a possible correlation among interdialytic weight gain (IDWG) and xerostomia. MATERIAL AND METHODS: This study was performed on a group of 50 HD patients. Data were collected using a questionnaire containing demographic and clinical variables, a visual analogue scale (VAS) for xerostomia, IDWG, and an oral health impact profile questionnaire (OHIP-14)...
March 1, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
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