Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Root Coverage Using the Coronally Positioned Tunnel Technique with Acellular Dermal Matrix Comparing Two Different Suturing Techniques: A Pilot Study

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Version 1 : Received: 1 June 2023 / Approved: 2 June 2023 / Online: 2 June 2023 (12:17:15 CEST)

How to cite: Xygkas, D.; Greenwell, H.; Hill, M.; Katwal, D.; Panagiotakopoulos, V. Root Coverage Using the Coronally Positioned Tunnel Technique with Acellular Dermal Matrix Comparing Two Different Suturing Techniques: A Pilot Study. Preprints 2023, 2023060203. https://doi.org/10.20944/preprints202306.0203.v1 Xygkas, D.; Greenwell, H.; Hill, M.; Katwal, D.; Panagiotakopoulos, V. Root Coverage Using the Coronally Positioned Tunnel Technique with Acellular Dermal Matrix Comparing Two Different Suturing Techniques: A Pilot Study. Preprints 2023, 2023060203. https://doi.org/10.20944/preprints202306.0203.v1

Abstract

Objective. The primary aim of this 6-month randomized, controlled, blinded clinical pilot study was to compare the percent root coverage obtained using an acellular dermal matrix allograft (ADM) and a coronally positioned tunnel (CPT) technique with two different suturing techniques. Materials and Methods. Sixteen patients with at least one Miller Class I or II recession defect ≥ 3 mm were randomly selected to receive a CPT with ADM using either two independent continuous sling sutures to secure the graft and the soft tissue separately (SEP) or a single continuous sling suture to secure both the graft and the soft tissue together (TOG) in the test group. Percent defect coverage, predictability of achieving 100% root coverage, keratinized tissue width, and attachment levels were assessed. Results. Both TOG and SEP suturing techniques achieved a significant amount of defect coverage, 83 vs. 85%, respectively, with no significant differences between groups. The predictability of achieving complete defect coverage was 63% for both groups. All maxillary sites had 100% coverage. There was a statistically significant gain of keratinized tissue for the TOG (1.1 ± 0.9 mm), while the SEP group gained only minimal amount (0.2 ± 0.8 mm). Conclusions. The single sling, for simultaneous suturing of the soft tissue and acellular dermal matrix, worked as well as two sling sutures used separately for the soft tissue and ADM. Suturing time was reduced by about 50% for the single sling group indicating a significant clinical advantage for the patient and surgeon.

Keywords

root coverage; gingival recession; suturing technique; coronally positioned tunnel; acellular dermal matrix

Subject

Public Health and Healthcare, Other

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