Refinement and Evaluation of Modified Minimally Invasive Harvest Technique for Subepithelial Connective Tissue

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Introduction:The aim of this paper was to refine the modified minimally invasive single-incision technique (MSIT) into 6 steps that are easy to execute. The advantage of this modification was evaluated and compared with the traditional trap-door incision technique (TDIT). Several other harvesting techniques, suturing techniques, indications, contraindications, and limitations were also summarized.Materials and Methods:A total of 40 patients presenting with multiple areas of gingival recession were recruited for this study. All patients were randomly assigned to either the MSIT or TDIT group. Standard periodontal instruments and crossed horizontal suspension sutures were used for both procedures. Harvesting and suturing time, verbal rating scale (VRS), and an early wound-healing index (EHI) were recorded.Results:The total operating time, and particularly the suturing time, was shorter in the MSIT group (267.70 ± 20.24 seconds) than the TDIT group (298.20 ± 21.07 seconds), and the difference was statistically significant (P < 0.05). However, there was no significant difference in pain level between the 2 groups according to the VRS evaluation (P = 0.3658). One week postsurgery, the EHI of the MSIT group (2.00 ± 0.95) was significantly lower than the TDIT group (2.85 ± 1.15) (P < 0.05).Discussion:The 6-step MSIT is more predictable and easy to execute, which decreases the challenge for both dentists and patients. Favorable outcomes occurred because of the streamlined minimally invasive procedure and favorable postoperative recovery.

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