Search results for "CARIES"
showing 10 items of 191 documents
Estudio transversal de la microbiología salival mediante pirosecuenciación en escolares de la Comunitat Valenciana y su relación con la caries dental
2013
La salud oral, que está fuertemente influenciada por la microbiota oral, ejerce un papel significativo en la salud general. Las comunidades bacterianas orales contienen especies que promueven estados de salud, mientras que otras contribuyen a la enfermedad. Conocer qué especies están presentes y cómo se componen las comunidades microbianas en estados de salud es el primer paso para comprender qué cambios pueden llevar a la enfermedad. El tipo de muestras a utilizar para este tipo de estudios, bien con objetivos epidemiológicos o etiológicos, es crucial. La saliva representa un medio fácil y no invasivo de obtención de muestras que contengan bacterias orales de varias localizaciones como las…
Fluoruro en aguas minerales naturales envasadas en España y prevención de la caries dental
2015
ResumenObjetivoEl propósito del estudio es conocer la concentración en flúor de las aguas minerales naturales comercializadas en España para poder prevenir la caries dental sin el riesgo de causar fluorosis dental.DiseñoEstudio descriptivo y transversal a lo largo de 2012.EmplazamientoAguas minerales naturales comercializadas en España.ParticipantesTres muestras con fechas distintas de embotellado de 109 marcas de aguas minerales naturales (97 marcas españolas y 12 aguas importadas).Medición principalDeterminación analítica por cromatografía iónica del contenido en fluoruro en el agua.ResultadosLa concentración mediana de fluoruro de las aguas minerales naturales españolas es de 0,22 (rango…
Effectiveness of a new method of disinfecting the root canal, using Er, Cr:YSGG laser to kill Enterococcus faecalis in an infected tooth model.
2013
Some lasers have demonstrated to provide effective disinfection when used as adjunctive device to the conventional treatment. The aim of this in vitro study was to determine the effectiveness of the erbium, chromium:yttrium scandium gallium garnet (Er, Cr:YSGG) laser by measuring its bactericidal effect inside the root canal experimentally colonized with Enterococcus faecalis. The laser was tested at different irradiation times (30 and 60 s) and energy of impulses (75 and 25 mJ). A total of 52 single-rooted extracted human teeth were endodontically prepared with rotary instrumentation. All were sterilized and inoculated with a suspension of E. faecalis (105 bacteria/ml). The teeth were rand…
Vispārējās veselības stāvokļa un nepārtikas paradumu saikne ar kariesa intensitāti pirmsskolas vecuma bērniem Latvijā
2019
Mērķis. Pētījuma mērķis bija izpētīt iespējamo saikni starp pirmsskolas vecuma bērnu vispārējās veselības traucējumiem, mutes veselību ietekmējošiem kaitīgiem paradumiem un kariesa intensitāti. Metodes. Šo šķērsgriezuma pētījumu, kas notika 2017. un 2018.gadā, apstiprināja Latvijas Universitātes Ētikas Komisija. Kopējais dalībnieku skaits bija 158, vecumā starp 2 un 7 gadiem. Rakstiska piekrišana tika saņemta no vecākiem. Bērna vecāki aizpildīja aptaujas. Klīnisko apskati veica trīs zobārsti, kuriem asistēja grupa ar studentiem. Statistiskā analīze tika veikta ar IBM SPSS 20.0 statistisko programmu. Aprakstošā statistika tika veikta visiem pētijuma mainīgajiem lielumiem. Rezultāti. Vienfakt…
Factors influencing caries status and treatment needs among pregnant women attending a maternity hospital in Udaipur city, India.
2012
To estimate the prevalence and severity of dental caries along with the treatment needs; to determine the factors that influence dental caries status among pregnant women attending a district maternity hospital in Udaipur, India. Study design: Study sample comprised of 206 pregnant women attending a district maternity hospital in Udaipur, India. Clinical data were collected on dental caries by DMFT and treatment needs as described in World Health Organization Dentition status and Treatment needs. Results: The overall caries prevalence was 87%. Mean caries experience differed significantly among women in various trimesters, it was found to be 3.59 and 3.00 in 1st and 2nd trimester subjects r…
Oral manifestations of Smith-Lemli-Opitz syndrome: a paediatric case report.
2009
ABSTRACT. Background The Smith-Lemli-Opitz Syndrome (SLOS) is an autosomal recessive genetic disorder, characterised by multiple congenital malformations, dysmorphic facial features and mental retardation. SLOS is caused by a genetically inherited deficiency of the enzyme 7-dehydrocholesterol Δ7reductase (7-DHC reductase), the catalyst involved in the final step of cholesterol biosynthesis, with the consequence of an increased serum levels of 7-DHC and generalised cholesterol deficiency. Case Report A 5-year-old female child was referred to the Department of Paediatric Dentistry of the University of Palermo for caries, gingivitis and malocclusion. The medical history revealed the diagnosis …
Preventing root caries development under oral biofilm challenge in an artificial mouth
2013
Objectives: To study the preventive effects of chlorhexidine against root caries under oral biofilm in an artificial mouth. Study Design: Sixteen human tooth-root disks were inoculated with a salivary sample that was produced by mixing the unstimulated saliva of three adults who had no untreated caries. The disks were incubated in an artificial mouth fed with a 5% sucrose solution three times daily for one week. Eight disks received a twice daily rinse of 0.12% chlorhexidine (test group). The other eight disks were rinsed in distilled water (control). The biofilm was then studied with three techniques: colony forming unit (CFU) counting, scanning electron microscopy (SEM) and confocal laser…
Bifunctional dentifrice: Amorphous polyphosphate a regeneratively active sealant with potent anti- Streptococcus mutans activity
2017
Abstract Objective In this study we demonstrate that inorganic polyphosphate (polyP) exhibits a dual protective effect on teeth: it elicits a strong antibacterial effect against the cariogenic bacterium Streptococcus mutans and, in form of amorphous calcium polyP microparticles (size of 100–400 nm), it efficiently reseals cracks/fissures in the tooth enamel and dentin. Methods Three different formulations of amorphous polyP microparticles (Ca-polyP, Zn-polyP and Sr-polyP) were prepared. Results Among the different polyP microparticles tested, the Ca-polyP microparticles, as a component of a newly developed formulation of a dentifrice, turned out to be most effective in inhibiting growth of …
Desarrollo de Streptococcus dentisani sp. nov, como probiótico para la salud bucodental
2018
Las enfermedades orales como la caries se encuentran entre las más prevalentes en todo el mundo y se desarrollan como consecuencia de una disbiosis microbiana. Probablemente por esta naturaleza polimicrobiana y altamente variable, las aproximaciones de inmunización no son efectivas, y el uso de pre y probióticos que restablezcan la homeostasis han sido propuestas como alternativas prometedoras. Durante años se han probado varias cepas bacterianas como posibles organismos promotores de la salud oral, pero generalmente son especies aisladas de nichos distintos al sitio donde deben ejercer su acción probiótica final, típicamente de muestras fecales. Nuestra hipótesis defiende que los comensale…
The impact of head and neck radiotherapy on the dentine-enamel junction: a systematic review
2019
Background Radiotherapy is widely used in contemporary head and neck cancer treatment protocols. The ability of head and neck radiotherapy (HNRT) to cause direct radiogenic destruction to the teeth is one of the most controversial topics in the field of oral oncology. Therefore, this systematic review aimed to investigate ionising radiation as an independent factor for physical and chemical changes on the dentine-enamel junction (DEJ), a pivotal dental topography for the onset and progression of radiation-related caries (RRC) and enamel delamination. Material and Methods Systematic searches were conducted on three databases: Scopus, MEDLINE (Via PubMed) and Embase (Elsevier). Laboratory stu…