Spanish dental hygienist attitudes to dental radiological protection: assessment of a 1-day pilot course.

OBJECTIVES: To determine hygienists' knowledge of and attitudes to X-ray equipment and film processing, and to assess both after a 1-day course. STUDY POPULATION: One-hundred and four dental hygienists from the south-east of Spain attending a 1-day course in oral radiology. METHODOLOGY: A questionnaire comprising different sections related with socio-demographic items, X-ray equipment and the processing of dental films was answered before and after a 1-day pilot course on radiation protection. RESULTS: The response rate was 89.42% (n = 93). Of the participants 94.6% were women, with a mean age of 29.52 (SD 6.861) and 7.20 years of professional experience (SD 5.089). The level of knowledge before the course was 48.28%, which increased to 85.62% after the course (P < 0.001). CONCLUSIONS: The prescribed standard was reached by <23.65% of those attending the course at the beginning. Although attending the course led to a considerable improvement, it did not always result in a high level of knowledge of basic radiation equipment and processing.

Mucocutaneous candidiasis as first manifestation of autoimmune polyglandular syndrome type I.

Autoimmune polyglandular syndrome type 1 exhibits very specific oral manifestations in the form of enamel hypoplasia and oral candidiasis. The authors present the case of a 10-year-old girl with autoimmune polyglandular syndrome characterized by chronic mucocutaneous candidiasis infections, hypoparathyroidism, and enamel hypoplasia. The importance of this entity is stressed, with special attention to the observed oral anomalies.

Fracture in the chin area: an unusual case of mandibular torus fracture.

Mandibular torus fracture as a result of accidental trauma has not been reported to date in the dental literature. This study describes the case of a young adult male who suffered multiple fractures affecting the teeth and mandibular torus secondary to chin area trauma due to a bicycle accident; the first manifestation of bone damage being left unilateral paraesthesia of the lip. An occlusal x-ray study of the affected area was made to evaluate possible fracture, as unlike centred periapical x-rays and orthopantomography, it is able to reveal the existence of a fracture line of the alveolar wall. In the associated presence of paraesthesia, a computed tomographic study is advisable.

Análisis de la simetría del tamaño dentario mediodistal de la misma muestra en dentición mixta y permanente. Estudio longitudinal / Analysis of symmetry mesiodistal size teeth in mixed and permanent dentition in the same sample. A longitudinal study

En el presente trabajo se estudian los diámetros mesiodistales de los dientes temporales y permanentes de la misma muestra y se analiza la existencia de simetría entre dientes homólogos. Dicho estudio fue realizado inicialmente sobre una muestra de 267 niños con dentición mixta, 90 (34 por ciento) niñas y 177 (66 por ciento) niños, de Andalucía Oriental, con edades comprendidas entre 8 y 10 años, transcurridos cuatro años volvimos a analizar a los mismos niños con dentición permanente, y sólo obtuvimos una muestra de 171, de los cuales 69 (40 por ciento) eran niñas y el 102 (60 por ciento) niños, con una edad media de 12 años y un rango de 11 a 13 años, el 21 por ciento de la muestra tenía 11 años, el 46,29 por ciento presentaba una edad de 12 y el 32 por ciento de 13 años, utilizándose como criterios de selección, que no tuvieran alteraciones morfológicas, pérdidas dentarias, apiñamientos importantes, entre otros factores. El tamaño dentario se midió, como la máxima distancia entre los puntos de contacto mesial-distal de la corona, utilizándose un calibre de punta fina, con una precisión de 0,1 mm. Todas las mediciones fueron realizadas por el mismo observador, directamente en boca, utilizando luz natural y espejos desechables. El análisis estadístico incluyó pruebas como la "t" de Student, con un nivel de significación estadística de p< 0,05. Los principales resultados incluyen la existencia de simetría entre dientes homólogos, tanto en dentición temporal como en dentición permanente (AU)

In the present work is analysed the mesiodistal diameters of the temporal and permanent teeth of the same sampie to calculate the symmetry. The first sample was 267 children, 90 girls (34%) and 177 (66%) boys from Oriental Andalusia, aged between 8 and 10 years old. After four years, we analysed the same children with permanent teething and we obtained just a sample of 171, 69 girls (40%) and 102 (60%) boys, with an average age of 12 years and a range from 11 to 13 years, using as criteria selection not having morphological alteration, teeth loss, important congestions, between other elements.The teething dimension was measured as the maximum distance between the mesiodistal contact points of the crown, using a sharp-end gauge, with a 0,1 mm precision. All the measurements were made by the same viewer, directly to the mouth. For the statistic analysis was used the t Student test, with a level of statistic signification of p<0,05. The main results include the symmetry of the mesiodistal size both in a mixed dentition and a permanent dentition, of the same sample (AU)

Clinicopathological characteristics of tongue piercing: an experimental study.

BACKGROUND: This study attempts to remedy the situation that no morphological studies exit of tongue piercing. METHODS: The tongues of eight Beagles were pierced with titanium implants. The animals were then divided into four groups: 1 week, 2 weeks, 1 month and 3 months for clinical-photographic and histopathological studies. RESULTS: Group I: clinically, erythema at both orifices and, microscopically, granulation tissue covering the surface of the canal and infiltrates of polynuclear neutrophils. Group II: persistence of erythema and of the granulation tissue, with the edges of the epithelium showing signs of regeneration. Group III: granulation tissue alternating with fibrosis; epithelium covering the sides of the canal. Group IV: fibrosis substituting the granulation tissue and almost complete re-epithelialization of the canal. All groups, except group I, numerous foreign body-type granulomas. CONCLUSIONS: Tongue piercing provokes fibrous reparation with almost total re-epithelialization of the perforated zone and foreign body-like granulomatous inflammation.

Clinical evaluation of bonding techniques in crown fractures.

The technique of bonding fragments when dental fractures occur is a routine procedure. The objective of this investigation is to demonstrate the retention of the fragments bonded using a compound material according to the Simonsen technique. The most noteworthy conclusion is that this type of restoration lasts less than two years when in the mouth. For this reason other therapeutic options with better future expectations should be introduced.

An evaluation of the bond strengths to enamel of two fissure sealants.

The objective of this study was to carry out a comparative evaluation of the bond strength to enamel of two present-day fissure sealants, Helioseal and Concise; good adhesion of the material to the tooth surface is one of the requisites for the success of this preventive technique. To this end, 16 caries-free human premolars extracted for orthodontic reasons were used. Proximal, mesial, and distal surfaces were treated and studied. Bond strength was evaluated by the application of compression forces (Instron) at a velocity of 0.5 mm/mm. The overall results obtained do not show significant differences between the two materials.