| http://www.w3.org/ns/prov#value | - They were assigned to two groups, i.e. the control and experimental group, and two different groups of adults were analyzed.The control group consisted of 40 adults (20 male and 20 female) aged 25 to 39 years (mean age 33.2??3.8 years), selected according to criteria of dentofacial normality, with normal occlusion, no crowns, porcelain laminate veneers or composite resin restorations in the anteri
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