Impact of dental fluorosis on the oral health related quality of life of adolescents in an endemic area.

Introduction: Oral diseases and conditions affect the physical, social, and psychological well-being of an individual. The aim of this study was to determine the association between the severity of dental fluorosis and oral health related quality of life (OHRQoL) among 15-year-old school children residing in an endemic area for dental fluorosis in Sri Lanka.

Design: A cross-sectional study was conducted among 989, 15-year-old school children who were lifetime residents of Kurunegala district.

Dental fluorosis among 15- year- old school children in an endemic district in Sri Lanka.

Aim: To determine the prevalence, severity, and intraoral distribution of dental fluorosis among 15-year-old school children in Kurunegala district of the North-Western Province, Sri Lanka.

Method: A cross-sectional study was conducted among 15-year-old school children residing in Kurunegala district since birth. One thousand and forty participants from 42 schools were selected using two stage cluster sampling method.

Physico-chemical and sensory quality of fresh cut papaya (Carica papaya) packaged in micro-perforated polyvinyl chloride containers.

Papaya cubes at maturity stages, 5-45 % yellow (more green than yellow) and 55-80 % yellow (more yellow than green) were washed with 5 % H2O2, drained and packaged in PVC trays having five, seven and ten micro-perforations and stored for 19 days. PVC trays with 3 mm diameter punch holes were used as the control. Based on physico-chemical properties, optimum maturity for papaya and micro-perforation level of PVC trays were determined.