Abstract
Aim: The aim of this work was to determine whether orthodontic-surgical therapy of upper canine retention leads to involvement of periodontal tissues of classified and adjacent teeth and whether the length of their roots is affected after the end of therapy. Material and methods: The study included 46 patients with unilateral vestibular or palatal upper canine retention.
At CBCT After completion of canine retention therapy, the marginal bone height and root length of the classified canines and adjacent teeth were evaluated in comparison to the contralateral side. A total of 5 parameters were measured on the CBCT image (4 parameters evaluated the height bones - from the palatal, vestibular, mesal and distal sides, and 1 parameter evaluated the length of the roots).
A total of 21 patients also underwent a clinical examination of the periodontium (depth of the gingival sulcus, width of the keratinized gingiva, length of the clinical canine crown). Results: In the case of retention of canine 13, palatal tooth 12 was significantly lower and tooth 13 was significantly lower between teeth 13. alveolar bones.
During retention of the canine 23, a lower bone height was found in tooth 22 palatal, buccal, distal and in tooth 23 mesially and distally. In the palatal retention of the canine 23, its root was significantly shorter together with the palatal root of tooth 24 compared to contralateral teeth.
With vestibular retention of the canine 23, its root was also shorter compared to the contralateral tooth. In the results of the clinical examination of the periodontium, no statistically significant dependence of any examined parameter on the treatment technique was demonstrated.
Conclusion: In orthodontic-surgical therapy of upper canine retention, periodontal tissues and the length of the canine root and adjacent teeth are affected. The connection of the used treatment procedure with the value of gingival sulcus probing, keratinized width, was not proved gingiva and clinical crown length.