|Institution:||University of Oslo|
|Keywords:||orthodontics; panoramicradiography; cuspid; preventivedentistry; ectopictootheruption; impactedtooth; VDP::710|
|Full text PDF:||http://urn.nb.no/URN:NBN:no-42043
Purpose: Using panoramic radiographs and clinical models of 9 and 12-year-old children, the range of normalcy of the canines eruption pattern was examined in a longitudinal study. The study aims to find predictive values for maxillary canine eruption, which may be useful in early detection of impactions. Methodology: Geometric measurements on panoramic radiographs of 292 individuals were used to study the canines’ position at individuals of 9 and 12 years of age. To analyse the clinical aspects, their models in the corresponding years were also examined. The measurements of interest on the panoramic radiographs are α, β, d, and sector. The clinical models at respectively 9 and 12 years of age were evaluated by 4 parameters; palpation, eruption, crowding and persistent deciduous maxillary canines. The data was analysed by using SPSS. Results: There was a statistically significant difference (p < 0.001) between eruption of the canines and palpation at 9 years; and between erupted and non-erupted canines when distance, β angle and sector location were evaluated. Conclusion: In accordance with other studies, sector, distance, palpation and beta were found to be predictors of eruption, however none were able to predict eruption alone.