研究目的
To report cases in which sufficient width of the keratinized gingiva was achieved using a coronally advanced flap in combination with a subepithelial connective tissue graft (SCTG) obtained by the ‘CO2 laser de-epithelization technique’ (CODE).
研究成果
The use of CODE allows for predictable harvesting of SCTG of excellent quality and quantity, and increases the keratinization of the overlying mucosal epithelium. It meets the aim of establishing the merits of this novel technique and should provide a new more effective and safer mode of therapy for the management of gingival recession.
研究不足
This is only a presentation of a case study, further studies with more cases and with a control group for comparison are needed to confirm the outcome of CODE.
1：Experimental Design and Method Selection:
The study involved the use of a coronally advanced flap in combination with a subepithelial connective tissue graft (SCTG) obtained by the ‘CO2 laser de-epithelization technique’ (CODE) for treating gingival recessions.
2：Sample Selection and Data Sources:
Eleven patients with 21 Miller Class I, II, and III gingival recessions were treated.
3：List of Experimental Equipment and Materials:
CO2 laser (Opelaser Pro, Yoshida Dental Mfg., Tokyo, Japan), Gracey curettes (Hu-Friedy, Chicago, IL, USA), 5-0 nylon sutures (Kono Seisakusho Co. Ltd., Chiba, Japan).
4：Experimental Procedures and Operational Workflow:
Free gingival grafts were harvested and de-epithelialized extra-orally using CO2 laser. The grafts were then positioned and adapted to the prepared vascular bed and stabilized with sutures.
5：Data Analysis Methods:
Clinical measurements were carried out before the surgery and at the 1-year follow-up session, including width of keratinized gingiva (KG) and recession depth (RD).
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