کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3118972 | 1582743 | 2011 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Gingival changes and secondary tooth eruption in adolescents and adults: A longitudinal retrospective study Gingival changes and secondary tooth eruption in adolescents and adults: A longitudinal retrospective study](/preview/png/3118972.png)
IntroductionOur aim was to investigate 8 years of vertical changes of the gingival margin and tooth displacement of maxillary molars and incisors in adolescents and adults.MethodsTwenty-five adolescents and 10 adults were included in this study, with dental casts taken 2 and 10 years after orthodontic treatment. The gingival contour of the teeth was traced digitally using calibrated photographs of the 2 dental casts, and gingival changes were measured on crown superimposition. Eruption of the central incisors and first molar were measured on dental casts after scanning and superimposition on the palatal vault.ResultsAdults and adolescents presented a mean molar eruption of 0.27 and 0.34 mm and a mean incisor eruption of 0.39 and 0.73 mm, respectively. Adults and adolescents presented a mean molar gingival displacement of respectively 0.34 and 0.77 mm, and the adolescents a mean incisor gingival displacement of 0.44 mm. Correlation between secondary tooth eruption and gingival displacement was obtained only for the incisors in the adolescent group.ConclusionsAdolescents and adults presented apical displacement of the gingival contour of the maxillary first molars, as was the case for maxillary incisors in adolescents. Secondary eruption of maxillary first molars and central incisors continues in adolescents and adults.
Journal: American Journal of Orthodontics and Dentofacial Orthopedics - Volume 139, Issue 4, Supplement, April 2011, Pages S129–S132