Abstract
The orthodontic treatment is a favouring factor for the appearance of gingival recession, especially when the teeth are moved toward buccal direction. The purpose of this study is to compare periodontal clinical parameters in patients with gingival recession following fixed orthodontic therapy, treated through two different surgical techniques: free gingival graft (FGG) and connective tissue graft with coronary advanced flap (CTG+CAF), using in both techniques a non-eugenol periodontal dressing. The study is comprised of 12 patients that have previously undertaken fixed orthodontic treatment. 44 sites were treated, 23 of which were treated through free gingival grafts (FGG � with a mean recession of 3.04�0.2mm) and 21 through epithelial-connective grafts with a coronary advanced flap (CTG + CAF � with a mean recession of 3.24�0.24mm). Sites treated with FGG obtained superior results regarding the width of keratinised tissue (p.0.0006), but recession coverage was superior for CTG+CAF (p.0002). The post-operatory discomfort was diminished by using a non-eugenol periodontal dressing, which also ensured a faster healing time.
Highlights
Gingival recession is defined as the displacement of the free gingival margin apical to the cementoenamel junction
The coverage percentage of the gingival recession was calculated for each patient as follows:/initial recession x 100 The stages completed in the first technique with free gingival graft were the following: local anaesthesia with Ubistesin 1:200 000, at the level of the donor and receptor bed
The two techniques are similar from an operating time and obtained results point of view
Summary
Gingival recession is defined as the displacement of the free gingival margin apical to the cementoenamel junction. It occurs at a single root surface, most common, at the buccal aspect [1]. The appearance of gingival recession following orthodontic treatment is a controversial study both in the specialty periodontal and in the orthodontic literature, in what regards the intensity and direction of the forces and of gingival biotype [2]. Gingival recession determines an apical migration of the epithelial attachment with a progressive diminishing of the bone support, which may lead in some situations to loss of teeth [3]. The prevalence of gingival recession during patients undergoing orthodontic treatment is 10-12% [4]
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