Age estimation of Hispanic children in the United States: Development and validation of dental reference dataset based on two staging systems.

Dental tissues follow a systematic pattern of development and several radiological methods have been developed and validated. This study aims to develop and validate a reference data set (RDS) for dental development of Hispanic children and to compare the mean age using the Demirjian and Moorrees tooth developmental stage (TDS) systems. A total of 600 Dental Panoramic Tomographs (DPTs) of Hispanic children aged 6 to 17 years were obtained and reference datasets (RDS) were developed by scoring all the maxillary and mandibular teeth in the left side of the arch according to the Demirjian (8 stage) and Moorrees (14 stage) scoring systems.

Evaluation of the caries-preventive effect of toothpaste containing surface prereacted glass-ionomer filler.

Aim: Although fluoride interventions have the most consistent benefit in preventing caries, caries still develop in high-risk individuals. Authors have evaluated the effectiveness of toothpastes containing surface prereacted glass-ionomer (S-PRG) filler in preventing tooth demineralization.

Methods: Human tooth enamel blocks were randomly assigned to six groups (30 blocks/group): no treatment (a), and toothpaste containing either 1500 ppm fluoride as sodium monofluorophosphate (NaMFP) (b), 0 wt% S-PRG (b), 1 wt% S-PRG (d), 5 wt% S-PRG (e), or 20 wt% S-PRG (f).