Prevalence of bifid tongue and Ankyloglossia in South Indian population with an emphasis on its embryogenesis / Prevalencia de lengua bífida y anquiloglosia en el Sur de la población India con énfasis en su embriogénesis

Disturbance in the organogenesis of tongue might lead to some malformations like tongue tie, bifid tongue and hairy tongue. Severe degrees of these anomalies may cause speech impairment or periodontal defects. The present study was done on patients of the southern coastal belt of India during the past two years, on gross tongue anomalies. The results of the present study reveal that occurrence of tongue tie is 0.2 percent and bifid tongue is 0.3 percent in the southern coastal population. Since great majority of these oral anomalies have genetic basis the purpose of the present report is to highlight that these anomalies can exist without any familial background and also to suggest that environmental factor may play a role in the etiogenesis of these anomalies.

La alteración en la organogénesis de la lengua puede dar lugar a algunas malformaciones como anquiloglosia, lengua bífida y lengua vellosa. Grados severos de estas anomalías puede provocar un trastorno del habla o defectos periodontales. El presente estudio se realizó, durante los últimos dos años, en pacientes de la franja costera del Sur de la India con anomalías graves en la lengua. Los resultados del estudio revelaron que, en la población costera del sur, la incidencia de anquiloglosia era de 0,2 porciento y de lengua bífida de 0,3 por ciento. Dado que la gran mayoría de estas anomalías orales tienen base genética, el propósito del presente informe fue poner de relieve que estas anomalías pueden existir sin ningún tipo de antecedentes familiares y también sugerir que los factores ambientales podrían jugar un papel en el etiogenesis de estas anomalías.

Comparative evaluation for microleakage between Fuji-VII glass ionomer cement and light-cured unfilled resin: a combined in vivo in vitro study.

Glass ionomer cement, besides being used as restorative material, can also be used as pit and fissure sealant. The use of glass ionomer cement as pit and fissure sealant has added benefit by its fluoride-releasing property that results in increased resistance of the fissures to demineralize. The capacity of a sealant to prevent microleakage into the fissure is important, since microleakage may initiate and support a carious lesion beneath the sealant. The study was carried out to compare marginal microleakage between Fuji-VII glass ionomer cement (G C Corporation, Tokyo, Japan) and the conventional light-cured unfilled resin as pit and fissure sealants (3M Concise, 3M Dental Products, St. Paul, USA). The dye used was 2% methylene blue (Qualigens Fine Chemicals, Mumbai, India). The teeth were sectioned and studied under the stereomicroscope. The result revealed that there was no difference in microleakage (P > 0.05) between the two materials.