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Background: Evaluate the use of collagen matrix (CM) as adjunctive to coronally advanced flap (CAF versus CAF + CM) to treat gingival recession (GR) associated with non-carious cervical lesion-combined defects (CDs).Methods: Sixty-two patients presenting 62 CDs (RT1 GR and non-carious cervical lesion (NCCLs) were randomly allocated to either CAF group (n = 31): partial restoration of the NCCL and CAF; or to CAF + CM group (n = 31): partial restoration of the NCCL and CAF associated with CM. Clinical, esthetic, patientcentered outcomes, and restorative parameters were assessed. Results: After 12 months, CD coverage were 55.2% for CAF and 54.4% for CAF + CM (P = 0.8). Recession reduction were 1.9 ± 0.8 mm for CAF and 2.0 ± 0.7 mm for CAF + CM (P = 0.6). CAF+CM resulted in higher increase in keratinized tissue (KT) width (CAF: 0.3 ± 0.7 mm; CAF + CM: 0.9 ± 0.8 mm; P = 0.004) and KT thickness gain (CAF: 0.1 ± 0.3 mm; CAF + CM: 0.7 ± 0.2 mm; P = 0.001). Both treatments presented low postoperative pain and resulted in esthetics improvements. In addition, no restoration was lost, 27.4% showed a reduction of the superficial polishing, and 8% showed marginal staining, but still clinically acceptable. Conclusion: Partial resin composite restoration (with the apical limit up to 1 mm of the estimated CEJ) and CAF alone or combined with CM are suitable for treating CDs. The use of CM provided additional benefits in terms of KT width and thickness gain. (NCT03341598).

Background This study was conducted to assess the clinical, immunological, and patient‐centered outcomes of microcurrent electrotherapy on palatal wound healing. Methods This was a parallel, double‐masked randomized clinical trial, in which 53 patients with ridge preservation indications were selected and randomly assigned to one of two groups. In the control (sham) group (n = 27), palatal wounds, after free gingival grafts (FGG) harvest, received sham application of electrotherapy. In the test (electrotherapy treatment [EE]) group (n = 26), palatal wounds, after FGG harvest, received application of microcurrent electrotherapy protocol. Clinical parameters, patient‐centered outcomes, and inflammatory markers were evaluated, up to 90 days postoperatively. Results The EE group achieved earlier wound closure (P <0.001) and epithelialization (P <0.05; P = 0.03) at 7 and 14 days after harvest when compared with the sham group. Painful symptomatology was reported less frequently in the EE group than in the sham group at 3‐day follow‐up (P = 0.008). Likewise, an improvement in Oral Health Impact Profile was reported 2 days after the procedure by the EE group (P = 0.04). In addition, favorable modulation of inflammatory wound healing markers occurred when electrotherapy was applied. Conclusion Within the limits of the present study, it can be concluded that the use of a low‐intensity electrotherapy protocol may accelerate palatal wound healing and decrease patient discomfort after FGG harvest.

Background: Xenogeneic matrices (XMs) have been increasingly used for root coverage procedures. This study compared the use of two types of XM (collagen matrix [CM] and xenogeneic acellular dermal matrix [XDM]) associated with the coronally advanced flap technique (CAF) to treat single gingival recessions.Methods: Seventy-five patients presenting single RT1 gingival recession were treated by CAF (control group, n = 25), CAF+CM (test group 1, n = 25), or CAF+XDM (test group 2, n = 25) and completed 6-month follow-up. Clinical, patient-centered, and esthetic assessments were performed and intra-and intergroup differences were analyzed.Results: At 6 months, the mean recession reduction for CAF, CAF+CM, and CAF+XDM was 2.4 ± 0.8 mm, 2.4 ± 0.9 mm and 2.1 ± 0.8 mm, respectively (P > 0.05). The corresponding mean percentage of root coverage was 78.9% ± 26.2% for CAF, 78.0% ± 28.5% for CAF+CM, and 65.6% ± 26.9% for CAF+XDM (P > 0.05). Dentin hypersensitivity and esthetic conditions showed significantly improvements in all groups. Test groups presented significant gains in gingival thickness (GT; CAF+CM: 0.4 ± 0.3 mm; CAF+XDM: 0.4 ± 0.2 mm) compared to the control group (CAF: 0.0 ± 0.1 mm; P < 0.05). Conclusion:The CAF, CAF+CM, and CAF+XDM treatments each provided similar results in the treatment of single gingival recessions. The addition of either CM or XDM to CAF increases the GT.

Background This study was conducted to evaluate the clinical, immunologic, and patient‐centered outcomes of enamel matrix protein derivative (EMD) on excisional wounds in palatal mucosa. Materials Forty‐four patients in need of ridge preservation were randomly allocated into two groups: control group (n = 22): open palatal wound after free gingival graft (FGG) harvest and EMD group (n = 22): open palatal wound after FGG harvest that received 0.3 ml of EMD. Clinical and patient‐centered parameters were analyzed for 3 months post‐treatment. Wound fluid levels of inflammatory markers were assessed 3 and 7 days postoperatively. Results No significant inter‐group difference was observed in remaining wound area and re‐epithelialization. EMD and control groups achieved wound closure and re‐epithelialization 30 days postoperatively (p < .001), without inter‐group differences. Similarly, number of analgesics and Oral Health Impact Profile scores did not present significant inter‐group differences (p > .05). EMD appeared to selectively modulate wound fluid levels of monocyte chemoattractant protein‐1, macrophage inflammatory protein‐1α, matrix metallopeptidase 9, and tissue inhibitor of metalloproteinases‐2. Conclusion Within the limits of the present study, it can be concluded that EMD application to excisional palatal wounds using the investigated protocol does not provide clinical healing benefits, despite an apparent modulation of selected inflammatory markers.

Introduction Gingival recession (GR) is a prevalent problem that is related to esthetic demands and dentin hypersensitivity. Frequently, GR is associated with non‐carious cervical lesion (NCCLs) forming a combined defect (CD), which requires restorative and surgical treatment. Connective tissue graft procedures allow predictable root coverage but can result in patient discomfort. Case Presentation This first case report describes multiple GRs associated with B+ NCCL at teeth #4 and #6 of a 27‐year‐old patient with a thin periodontal phenotype. The aim of this report was to evaluate the 6‐month outcome of a new volume‐stable collagen matrix (VCMX) combined with modified coronally advanced flap (MCAF) and partial restoration to treat CDs. After 6 months, significant improvement was observed regarding CD coverage (69.05%), recession reduction (2.25 mm), gingival thickness gain (0.74 mm), and keratinized tissue width gain (0.75 mm). In addition, excellent esthetic evaluation and patient comfort were achieved by using the biomaterial. Conclusion VCMX associated with MCAF and partial restoration may be an option to treat multiple recession defects plus B+ NCCLs.

Objectives There are few studies comparing xenogeneic acellular dermal matrixes (XDMs) with connective tissue graft (CTG) to treat single gingival recession (GR). The present study involved a reanalysis of previous studies and comparison of CTG or XDM to treat single RT1/GR. Materials and methods Fifty patients from three previous randomized clinical trials treated either by CTG (n = 25) or XDM (n = 25) were evaluated after 6‐month. Clinical, patient‐centered, and esthetic parameters were assessed. Pearson's correlation and regression analyses were also performed. Results Greater recession reduction (RecRed), percentage of root coverage (%RC), and complete root coverage (CRC) were observed in the CTG group (p ≤ 0.02). Gingival thickness (GT) and keratinized tissue width (KTW) gains were higher in the CTG group. The CTG group showed better esthetic at 6‐month. Logistic analyses reported that GT([OR] = 1.6473) and papilla height (PH) (OR = 8.20) are predictors of CRC. GT*XDM interaction was a negative predictor of CRC (OR = 7.105−5). GT at baseline acted as a predictor of RecRed in both groups (p = 0.03). The XDM graft impacted RecRed and %RC negatively. Baseline PH was a predictor of %RC for both grafts. Conclusion CTG was superior for treating RT1/GR, providing better root coverage outcomes and tissue gains over time. GT, PH, and graft type were classified as predictors of CRC. Clinical significance CTG presented better outcomes to treat single RT1 gingival recession when compared to the XDM.

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