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Showing 1-6 of 6 trials
NCT07365865
Inadequacy of the attached keratinized tissue (\<2 mm) affects the long-term maintenance of prostheses and implants due to poor oral hygiene, plaque accumulation, inflammation, bleeding on probing, gingival recession , attachment loss, and crestal bone loss .Consequently, keratinized tissue augmentation is considered to compensate for keratinized attached gingival width inadequacy. Lack of keratinized tissue (KT) or KT with a narrow width (≤2 mm) compromise the long-term maintenance of peri-implant tissue health . Peri-implantitis was more frequently detected at dental implants sites with reduced width of KT than at those with adequate KT width. Free gingival graft (FGG) is regarded as an efficient method with significant clinical application . However, following harvesting larger grafts, some limitations arise in the donor site. Extensive palatal wound may cause discomfort and morbidity for the patient, the rugae area is unsuitable for graft material and the greater palatine artery will be of a great concern.
NCT07056959
A stable band of keratinized mucosa (KM) around dental implants is thought to minimize tissue recession and provide resistance against mechanical, chemical, and microbial challenges, thereby preserving peri-implant tissue health. Soft tissue augmentation is often employed to enhance the soft tissue phenotype in such cases. While autogenous grafts such as free gingival grafts (FGG) remain the gold standard, xenogeneic collagen matrices (XCM) have emerged as promising alternatives, offering reduced patient morbidity and surgical time. This randomized controlled clinical trial aims to compare the clinical efficacy and patient-reported outcome measures (PROMs) of XCM versus FGG for soft tissue phenotype modification when performed during healing abutment connection around dental implants, with evaluations at both short-term (6 months) and long-term (1 and 2 years) intervals. Thirty participants will be recruited at Dubai Health Dental Hospital and randomly assigned to receive either XCM (test) or FGG (control) augmentation. Clinical assessments will be conducted at baseline (T0), 2 weeks (T2w), and at 1 (T1), 3 (T3), 6 (T6), 12 (T12), and 24 (T24) months post-surgery. The primary outcome is the change in KM width, measured from the mucosal margin to the mucogingival junction. Secondary outcomes include KM thickness, supracrestal tissue height, and soft tissue dimensional changes, assessed using intraoral scans (Trios 5) and superimposed STL files. Additional measurements include peri-implant soft tissue level and phenotype. PROMs will be recorded in the first postoperative week and at the 3-year mark using a visual analog scale (VAS). Clinical indices such as plaque index, bleeding index, and probing depth will be evaluated at 6 months, 1 year, and 2 years. Marginal bone level changes and implant survival rates will also be tracked throughout the study period.
NCT06694623
In non-implant edentulous patients reduction of height and width of residual alveolar ridge and reduced attached KT compromise the denture-bearing area unambiguously leading to decrease in full denture stability and retention. Furthermore, in implant edentulous patients insufficient KT is associated with increased plaque accumulation, tissue inflammation, soft tissue recession, marginal bone loss and increased prevalence of peri-implantitis. The present study aimed to evaluate keratinized tissue gain and the wound contraction rate between apically positioned flap without and with free gingival graft strip over a 6-month follow up period. This research was designed as split mouth controlled clinical study included 17 patients having edentulous upper jaw with reduced width of keratinized tissue ( ≤ 4mm measured from middle of the crest to the buccal mucogingival junction or ≤ 2mm from occluso-buccal edge of the alveolar ridge to the mucogingival junction). In each patient, both surgical techniques, apically positioned flap without and with free gingival graft strip, were applied simultaneously. The change of keratinized tissue width and wound contraction rate were measured 30, 60 , 90 and 180 days after surgery
NCT05073952
The present study will evaluate the difference in terms of keratinazed mucosa (KM) in computer guided implant placement with immediate loading, comparing a flapless approach to flap surgery with connective tissue graft.
NCT03396536
The objective of this study is to evaluate patient discomfort while performing oral hygiene (OH) around implants with and without keratinized mucosa (KM) and assess peri-implant soft tissue esthetic satisfaction and other clinical parameters at the 3- and 6-month follow-up visits. Group 1 will be implants with KM and Group 2 implants without KM. The hypotheses underlying this proposal are (1) that dental implants surrounded by KM will have better patient-reported outcomes regarding discomfort during brushing compared with those that lack KM; (2) that dental implants with KM will show more favorable clinical outcomes (plaque index, bleeding on probing, pocket depth and peri-implant recession) compared with those without KM and (3) that dental implants with KM will have higher patient peri-implant tissue esthetic satisfaction compared with those without KM.
NCT01944267
This research study is looking at three different procedures for improving the oral mucosa (membrane) around dental implants. The three procedures will be the standard procedure, the standard procedure with the use of tissue harvested from the mouth and the standard procedure with the use of Mucograft membrane product. An advantage claimed by the Mucograft manufacturer is increased patient comfort due to lack of tissue harvesting from the mouth. Pain and discomfort levels will be evaluated for each of the procedures. Gain in oral mucosa and the visual will also be evaluated.