Patología calcificante de las glándulas salivales: presentación de dos casos clínicos / Pathological calcification of the salivary glands: presentation of two clinical cases

La calcificación extraesquelética es una entidad patológica de depósito de sales minerales fuera de las estructuras óseas. Los casos frecuentes se presentan por obstrucción mecánica de la glándula salival o de su conducto excretor, asociada con la formación de sialolitos en el parénquima, su verdadera causa no se conoce con exactitud, pero hay distintas hipótesis con respecto a factores locales y sistémicos. La sialolitiasis es la afección más común de las glándulas salivales en adultos jóvenes, 12 de cada 1,000 pacientes sufren de esta patología, con un predominio del sexo masculino. El diagnóstico se puede establecer mediante ecografía, radiografías oclusales, panorámicas o tomografía cone beam. Estudiamos dos casos de calcificaciones de los tejidos glandulares. El primero de una formación mineral dentro de su conducto y el segundo de una calcificación completa del conducto salival (AU)

Extra bone calcification is a pathological entity of deposit of mineral salts outside bone structures. Frequent cases are due to mechanical obstruction of the salivary gland or its excretory duct, associated with the formation of sialoliths in the parenchyma, its true cause is unknown, but there are different hypotheses regarding the influence local and systemic factors. Sialolithiasis is the most common condition of the salivary glands in young adults, 12 out of 1,000 patients suffer from this pathology, with a predominance of males. Diagnosis can be established by ultrasound, occlusal radiographs, panoramic or cone beam tomography. We studied two cases of calcification of glandular tissues. The first is a mineral formation inside the duct and the second is a complete calcification of the salivary duct (AU)

Prevalence of dental malocclusions in 12-year-old schoolchildren from Cuenca, Ecuador

The aim of this paper was to determine the prevalence of malocclusions in 12-year-old schoolchildren from Cuenca, Ecuador. A cross-sectional study was carried out, including a clinical examination of 181 schoolchildren aged 12 years, who were randomly selected from the schoolchildren population. We assessed the presence of malocclusions using the Angles classification. The analysis was performed in the program EpiInfo 7.2. The majority of the patients presented malocclusions (91.7%). There is no significant difference between public and private schools and the male sex was slightly more affected. There was a predominance of the Class II division 1 (30.4%), followed by Class III (25.4%), and Class I (24.9%), with the lowest prevalence reported for Class II division 2 (11%). A high rate of malocclusion was found in in 12-year-old schoolchildren from Cuenca, Ecuador, in both males and females. The dominant malocclusion in this study was Class II division 1.