Citation Information :
Mourad A, Sfeir E, Gholmieh M, Skaf Z. Alveolar Bone and Epithelial Attachment Status following Two Different Closed-eruption Surgical Techniques for Impacted Maxillary Central Incisors. Int J Clin Pediatr Dent 2018; 11 (4):317-322.
Aim: Two eruption surgical techniques are commonly described for the treatment of upper impacted central incisors (ICIs): Open and closed. Currently, the closed-eruption surgical technique (CEST) is the most commonly used, as it allows for the best esthetic and periodontal results.
The aim of this study was to determine the effect of traction discontinuation on maxillary central incisor sulcal depth and alveolar bone ridge levels compared with contralateral incisors, when CEST is used.
Materials and methods: Our study involved 28 unilateral impacted maxillary central incisors treated by CEST. Thirteen teeth were subjected to traction interruption for a month at the time of emergence of the crown, while 15 teeth underwent continuous traction. One year after treatment, periapical digital X-rays, anterosuperior cone beam computerized tomography (CBCT) scanning, and periodontal probing of the ICIs and contralateral central incisors (CCIs) were performed. Student's t-test was used to study whether a statistically significant difference between continuous and interrupted tractions takes place while using the CCI measurements as reference.
Results: There was a statistically significant difference between the two techniques only for the following measurements: Mesial probing (p-value 0.039352), labial bone level (p-value 2.58E-08), and palatal bone level (p-value 2.56E-06).
Limitations: A larger sample size and longer term follow-up are needed to draw more robust conclusions.
Conclusion: A temporary discontinuation during traction of the tooth appears to positively impact treatment outcome on ICIs.
• The CEST leads to the best periodontal status for ICIs.
• The discontinuation of traction at the emergence of the tooth allows the supracrestal fibers to insert into the cement in a proper way.
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