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A split-mouth study comparing soft tissue augmentation results using free gingival graft (FGG) versus xenogeneic collagen matrix (CM) for the generation of keratinized tissue (KT) around teeth with insufficient (< 2mm) KT.
Full description
A single-blind, randomized, controlled, split-mouth study of 30 subjects with insufficient zones of KT (< 2mm). The study utilized a within subject treatment comparison design to establish non-inferiority of the test (CM) versus control (FGG) therapy. The primary efficacy endpoint was KT width at 6-months. Secondary endpoints included traditional periodontal measures, such as clinical attachment, recession and bleeding on probing. Patient reported pain, discomfort and esthetic satisfaction were also recorded. Biopsies were obtained at 6-months.
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Inclusion criteria
At least two non-adjacent teeth in contralateral quadrants of the same jaw with < 2mm of KT that requires soft tissue grafting (1-4 teeth may be treated). In case of adjacent teeth requiring grafting, only one tooth at each site will act as test or control tooth, but all teeth will get the same treatment). The number of teeth treated must be the same on the test and control sites.
Exclusion criteria
Vestibule depth of less than 7mm from base of recession, and/or teeth with Miller Grade 2 or higher mobility.
Primary purpose
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Interventional model
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30 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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