Changes in lower dental arch dimensions and tooth alignment in young adults without orthodontic treatment

Changes in lower dental arch dimensions and tooth alignment in young adults without orthodontic treatment

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OBJECTIVE: The aim of this longitudinal study, comprising young adults without orthodontic treatment, was to assess spontaneous changes in lower dental arch alignment and dimensions.METHODS: Twenty pairs of dental casts of the lower arch, obtained kt196 torque converter at different time intervals, were compared.Dental casts obtained at T1 (mean age = 20.25) and T2 (mean age = 31.2) were compared by means of paired t-test (p 0.

05).Furthermore, incisors irregularity at T2 could not be predicted due to the severity of this variable at T1 (p = 0.5051).CONCLUSION: Findings suggest that post-growth maturation of the lower dental arch leads to a reduction of dental arch dimensions as well as to a mild, yet significant, increase in dental crowding, even in individuals without orthodontic treatment.Furthermore, dental alignment in the third redken shades 9gi decade of life cannot be predicted based on the severity of dental crowding at the end of the second decade of life.