Ultrasound assessment of soft tissue augmentation around implants in the aesthetic zone using a connective tissue graft and xenogeneic collagen matrix-1-year randomised follow-up

作者：Puzio Monika; Blaszczyszyn Artur; Hadzik Jakub^*; Dominiak Marzena

来源：Annals of Anatomy, 2018, 217: 129-141.

DOI：10.1016/j.aanat.2017.11.003

• Thickness keratinized gingiva
• Connective tissue graft
• Mucograft
• Ultrasound measurements

Purpose: A comparative, ultrasound evaluation of the thickness of keratinized mucosa (TKT) around implants one year after gingival augmentation (GA) by means of a connective tissue graft (CTG) and the xenogeneic collagen matrix (CMX).
Materials and methods: A total of 75 bone level tapered implants (Conelog (R) Camlog) were inserted in 57 patients in the aesthetic area of both jaws. The patients were divided into 3 groups: control group I- without GA; group II- GA 3 months before implantation, and group Ill- GA 3 months after implantation. Groups Il and Ill were divided into two subgroups depends on type of material used for GA: (a) CMX (Mucograft (R), Geistlich Pharma AG) and (b) CTG. The patients underwent a clinical and ultrasound examination before, then after 3 and 12 months following GA respectively to evaluate TKT at two points using ultrasound equipment (Pirop (R), Echoson). Point 1 was considered to be in the middle of the line connecting the cemento-enamel junction (CEJ) to the adjacent teeth, and point 2 on the mucogingival junction (MGJ).
Results: Three months after GA, the highest increase in gingival thickness was noted in group IIIb (point 1 - 0.95 mm, 2 - 1.01 mm). However, 12 months after GA the highest gingival thickness was observed in group lib (point 1 - 1.76 mm, 2 - 1.36 m) and next IIIb (point 1 - 1.52 mm, 2 - 1.15 mm).
Conclusions: Both CTG and Geistlich Mucograft (R) increased TKT, but higher values were noted using CTG augmentation before implantation. An ultrasonic device can be used as a non-invasive, reliable, and reproducible method for evaluating TKT.

• 出版日期2018