Search results for "oral surgery"
showing 10 items of 1088 documents
Initial attachment of human gingival fibroblast-like cells in vitro to titanium surfaces oretreated with saliva and serum
1996
Wound healing at the implant-soft tissue interface occurs in the presence of saliva and blood. The aim of this in vitro study was to investigate potential influence of saliva and serum on initial attachment of human gingival fibroblast-like cells to titanium (Ti) surfaces. 10×10mm large specimens were prepared from pure Ti, incubated for 1 h in either whole human saliva, fetal calf serum, their mixtures in proportions 75:25, 50:50 and 25:75, or buffer as control. Subsequently suspensions of human gingival fibroblast-like cells were applied in 4 separate assays to Ti surfaces for 40 min and cell attachment was evaluated by means of image analysis under reflected light microscopy. Significant…
Interest of studying the saliva metabolome, transcriptome and microbiome in screening for pancreatic cancer
2019
Abstract Introduction Pancreatic cancer is a public health problem because its mortality rate is close to its incidence rate. If it were possible to detect this cancer before the onset of symptoms, 5-year survival could reach 75%. Numerous studies have attempted to accelerate the diagnosis to improve survival. Saliva presents interesting characteristics as a fluid for screening and diagnosis. Its many components provide a promising source of constitutive biomarkers with a specific signature of the disease. The aim of this work was to determine the interest of studying the metabolome, the transcriptome and the microbiome of saliva in screening for pancreatic cancer. Materials and methods A r…
Estimation of salivary cortisol among subjects undergoing dental extraction
2017
Background Dental procedures can be stressful and studies have shown that salivary cortisol is elevated during such procedures. Our study aimed to evaluate saliva cortisol levels among the subjects who underwent dental extractions and to compare it with that of the controls. The secondary objective of the study was to evaluate any correlation between salivary cortisol and hemodynamic parameters. Material and Methods We conducted this clinical study among subjects, who were indicated for dental extraction. Saliva samples from the subjects in the study group were collected before and after (10 mins) the dental extraction. Hemodynamic parameters like heart rate, systolic (SBP) and diastolic bl…
Comparative in vitro study of the accuracy of impression techniques for dental implants: Direct technique with an elastomeric impression material ver…
2019
Background The aim of this study was to compare a conventional technique (elastomeric impression material - EIM) and a digital technique (scanner digital model – SDM) on a six-analog master model (MM) to determine which was the most exact. Material and Methods Twenty impressions were taken of a master model (EIM) and twenty scanned impressions (SDM) (True Definition). A coordinate measuring machine (CMM) was used to measure the distances between adjacent analogues (1-2, 2-3, 3-4, 4-5, 5-6), intermittently positioned analogues (1-4, 3-6) and the most distal (1-6). Reference values were established from the master model, which were compared with the two impression techniques. The significance…
In vitro perception of low-contrast features in digital, film, and digitized dental radiographs: A receiver operating characteristic analysis
2005
Objective To compare experimentally the image quality of charged-coupled device (CCD)-based digital, flatbed scanner digitized, and dental film radiographs. Study design High-contrast standardized radiographs of an aluminum step wedge containing boreholes were obtained on dental radiographic film (F) and a CCD receptor (D). Digitization (S) was done with a flatbed scanner. Each radiograph was separated into 23 single images, 18 of which showed a dark spot. Thirty observers indicated their confidence on the visibility of the spots for a receiver operating characteristic (ROC) analysis. Results Mean Az values (area beneath the ROC curves) differed significantly (P < .05), being highest for D …
The Image Gently in Dentistry campaign: promotion of responsible use of maxillofacial radiology in dentistry for children
2014
© 2014 Published by Elsevier Inc. The Image Gently in Dentistry campaign to be launched in September 2014 is a specific initiative of the Alliance for Radiation Safety in Pediatric Imaging, supported by organized dentistry and dental education as well as many dental specialty organizations. The objective of the campaign is to change practice by increasing awareness of the opportunities to improve radiation protection when imaging children in dental practices. Six practical steps are provided that underline the principle that one size does not fit all, especially when it comes to using radiography during pediatric dental procedures. When we image children, let us image gently: More is often …
Impacto científico y contextualización bibliométrica de la Pediatría respecto a otras áreas temáticas
2020
[ES] Introducción El objetivo de este trabajo es doble. Por una parte, identificar y caracterizar los indicadores de producción, citación, impacto y colaboración del área Pediatrics del Journal Citation Reports, y por otra, estudiar a la revista Anales de Pediatría en el contexto de las revistas españolas de otras 20 áreas y especialidades médicas. Material y método Las fuentes de información utilizadas para la obtención de los indicadores fueron Science Citation Index-Expanded, Journal Citation Reports y Scimago Journal & Country Rank. Se realizó un análisis de regresión para comprobar la correlación entre la citación y otras variables. Resultados Pediatrics ocupó el 8.o lugar en producció…
The effect of osseodensification on implant stability and bone density: A prospective observational study.
2019
Background The aims of this study were to evaluate the effect of implant site preparation in low-density bone using osseodensification method in terms of implant stability changes during the osseous healing period and peri-implant bone density using CBCT. Material and Methods This prospective observational clinical study included 24 patients who received 46 dental implants that were installed in low-density bone using the osseodensification method. CBCT was used to measure the bone density pre- and postoperatively and implant stability was measured using Periotest® immediately after implant insertion and then after 6 weeks and 12 weeks postoperatively. The data were analyzed using paired t-…
Antibiotic prophylaxis in dentistry and oral surgery: use and misuse
2009
INTRODUCTION: Antibiotic prophylaxis (AP) still represents a common but often misused procedure in dental practice, thus aggravating the risk for antimicrobial resistance and adverse effects occurrence. AIMS AND METHODS: Our primary objective is to review the available scientific evidence regarding AP in dentistry both among healthy subjects and medically compromised patients. Additionally, the latest available guidelines provided by some of the most authoritative associations are here discussed. RESULTS AND CONCLUSIONS: AP is advisable only in a small percentage of patients where a risk of severe infective complications (i.e. infective endocarditis and prosthetic joint infection, septicaem…
Il ruolo dell’odontoiatra nella medicina estetica: norme e indicazioni
2012
Riassunto Obiettivi Scopo del lavoro e valutare al laureato in Odontoiatria e Protesi Dentaria se sia consentito attuare trattamenti di Medicina Estetica del volto prospettati per modulare gli effetti negativi dell’invecchiamento e, al contempo, analizzare i cambiamenti estetici delle strutture periorali associati all’eta. Materiali e metodi Vengono descritti sinteticamente quali trattamenti coinvolgono clinicamente la professione odontoiatrica, con particolare riguardo alle infiltrazioni di tossina botulinica e di filler o volumizzanti, con un cenno anche agli aspetti civilistici e assicurativi correlati a tali trattamenti. Risultati e conclusioni Nell’ultimo decennio si e registrato un im…