Search results for "dent"
showing 10 items of 16910 documents
Análisis estructural cuantitativo del hueso alveolar trabecular de la mandíbula en tomografía computarizada multidetector: diferencias por tipo y est…
2019
Resumen Antecedentes y objetivo Existe una carencia de metricas cuantitativas de la calidad del hueso trabecular alveolar, factor determinante en implantologia. El objetivo de este estudio es desarrollar una metodologia con tomografia computarizada multidetector para objetivar la calidad del hueso trabecular y establecer diferencias entre los distintos tipos y el estado de las piezas dentarias mediante procesado de imagenes y analisis estructural. Materiales y metodos Se analizan 20 pacientes con exploracion de tomografia computarizada multidetector dental para la valoracion del hueso mandibular y posiciones dentales. El analisis de las imagenes incluyo la segmentacion automatica de la mand…
Efectos de un programa de eliminación de sujeciones físicas sobre personas mayores con demencia en residencias
2016
Resumen Objetivo Analizar los resultados de eliminar las sujeciones fisicas en mayores con demencia que viven en residencias. Este objetivo se enmarca en un proceso mas amplio de modificacion del modelo de atencion residencial. Metodo Estudio cuasi experimental en dos residencias desde mayo de 2010 hasta mayo de 2012. Se recoge informacion en 7 momentos temporales y se efectua un analisis longitudinal. Tras formar al personal se retiraron progresivamente las sujeciones fisicas en el centro El Puig, mientras que en el centro Conarda se mantuvieron las sujeciones. Las variables principales medidas fueron: caidas, psicofarmacos administrados, asi como diversos indicadores de estado mental y fu…
Practical proposal for the development of the rhythm with tennis players in training
2019
The importance of training coordination for the development of young players is a well-established area of research. However, rhythm, despite having a crucial importance in tennis, is one of the coordinative capacities less studied and therefore, it is difficult for coaches to obtain information that could allow them to design coaching sessions that focus on these capacities. This article highlights the importance of rhythm in tennis, and also presents series of general exercises (without the use of a specific tennis equipment), special exercises (with the use of specific tennis equipment) and specific exercises (in game situations) aimed at the training of these coordinative capacities.
Effect of different solutions in reversing the damage caused by radiotherapy in dentin structure
2020
Background Previous studies have shown that radiotherapy of the head and neck region can cause direct changes in dental structure. This study evaluated the effect of different solutions on the dentin chemical composition and collagen structure of irradiated dentin. Material and Methods Sixty maxillary canines were distributed in 2 groups (n=30): non-irradiated and irradiated (radiotherapy: X-rays of 6 MV in 30 cycles of 2 Gy to 60 Gy). The teeth were sectioned, sanded, and polished to obtain 3x3x2 mm fragments, which were redistributed in 3 subgroups (n=10) according to the treatment employed: chlorhexidine 2% (CL), chitosan 0.2% (QT), and 0.5 M carbodiimide (EDC). The samples were analyzed…
Global Change and the Dentistry. A Wish from Italy and DoctOral App for the New Open Dental Journal “POJ Dental and Oral Care”
2017
Influence of Biologically Oriented Preparation Technique on Peri-Implant Tissues; Prospective Randomized Clinical Trial with Three-Year Follow-Up. Pa…
2019
Purpose: The objective of this prospective randomized clinical trial (RCT) was to analyze and compare the clinical behavior of three types of prosthesis supported by single implants in the posterior region after three years functional loading. Materials and Methods: Seventy-five implants were divided into three groups according to the type of prosthetic restoration: screw-retained crown (Group GS); cemented crown without finishing line (biologically oriented preparation technique) (Group GBOPT); and conventional cemented crown with finishing line (Group GCC). The clinical behavior of each restoration type was analyzed after 3 years functional loading by analyzing radiographic peri-implant b…
Periodontal Diseases in Diabetes Melitus - A Two Way Link? A Review of Literature
2020
Abstract Numerous studies in the last decades report a frequent association of marginal periodontal disease with some systemic metabolic disorders, such as diabetes or obesity. The prevalence of these diseases is growing alarmingly both globally and in our country. Recent data from the literature confirm that advanced forms of periodontal disease can influence the evolution of type 2 diabetes. This may provide a premise for better glycemic control.
Comments on "Dental lessons from past to present: Ultrastructure and composition of teeth from plesiosaurs, dinosaurs, extinct and recent sharks" by …
2016
The paper mentioned in the title suggests that several groups of extinct vertebrates used fluoroapatite as a tooth mineral in dentine and enamel when alive; its authors posit that this tooth mineralization drastically changed in all these lineages at some point during their evolution, leading to the use of hydroxyapatite as an alternative primary tooth mineral, because of hitherto unconsidered environmental changes. These conclusions are based on their finding high fluoride levels (i.e. fluoroapatite) in the dentine of fossilised shark teeth as well as in both the dentine and enamel of plesiosaurs, mosasaurs, and dinosaurs, which is in sharp contrast to recent teeth (which contain almost no…
Predicción del estado nutricional a través de la calidad de vida y el patrón del sueño en ancianos con deterioro cognitivo
2019
Resumen Objetivo: establecer y analizar una posible relación entre el estado nutricional, el patrón de sueño y la calidad de vida en una muestra de pacientes con disfunción cognitiva. Participantes y método: estudio observacional y descriptivo de un grupo de casos con una muestra constituida por 48 personas mayores (65 años o más) que aceptaron participar en el estudio y vivían en Valencia (España). EuroQol (EQ-5D), Cuestionario de Oviedo del sueño (COS), Mini Mental State de Folsteisn (MMSE) y Mini Nutritional Assessment (MNA) se utilizaron para evaluar el caso de cada individuo. La asociación de variables se evaluó mediante la correlación entre las tres variables. Finalmente, para verific…
An in vitro cyclic fatigue resistance comparison of conventional and new generation nickel-titanium rotary files
2018
Background New designs and processing of Niquel-Titanium (NiTi) have been introduced to increase resistance to cyclic fatigue. The purpose of this study was to compare the cyclic fatigue resistance of 3 NiTi rotary instruments, ProTaper Next (PTN; Dentsply Maillefer, Ballaigues, Switzerland), Profile Vortex Blue (PVB; Dentsply Tulsa Dental, Tulsa, OK, USA) and ProTaper Universal (PTU; Dentsply Maillefer, Ballaigues, Switzerland). Material and Methods A cyclic fatigue test was conducted operating instruments from ProTaper Next X2, Profile Vortex Blue 25.06 and ProTaper F2. A total of 234 instruments were rotated in 2 simulated stainless steel curved canals with different angles of curvature …