科研之友
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摘要
Introduction: The aim of the study was to assess the alteration of alveolar ridge dimensions after decoronation procedures in children and adolescents at least 1 year after surgery. Methods: Twelve children who underwent decoronation of ankylosed maxillary anterior incisors with at least 1 year after surgery follow-up were recalled for reevaluation. All decoronations were performed when the ankylosed teeth were submerged 1-1.5 mm. During the recall appointment, impressions of the upper arch were obtained. The bucco-palatal alveolar dimensions of the decoronated teeth were measured on the cast at the mid-mesiodistal distance from the missing tooth and were compared with the distance from the contralateral healthy incisor. Results: Overall, 12 children (9 male and 3 female) were reevaluated up to 82 months after decoronation (mean, 49.58 +/- 24 months). The mean age of the patients at the time of trauma was 9.83 +/- 2.8 years. The average buccopalatal dimension of the alveolar ridge at the middecoronation area was 9 1 mm compared with 10.17 +/- 0.9 mm at the contralateral homologous tooth (difference of 1.67 +/- 1.12, P = .004). The findings show a positive statistical correlation between the duration of the follow-up period and the bucco-palatal dimension of the alveolar ridge (P = .027). Conclusions: Although decoronation of ankylosed young permanent incisors resulted in a decrease in the bucco-palatal dimension with time, it did not prevent additional alveolar growth that occurs with age in a developing child and thus may help maintain the alveolar bone ridge width, height, and continuity and assist in future rehabilitation with less invasive ridge augmentation procedures required for implant placement.
- 出版日期2013-12
