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International Journal of Periodontics & Restorative Dentistry
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Int J Periodontics Restorative Dent 39 (2019), No. 5     30. Aug. 2019
Int J Periodontics Restorative Dent 39 (2019), No. 5  (30.08.2019)

Page 721-727, doi:10.11607/prd.4176, PubMed:31449584


Gain of Keratinized Mucosa Around Implants in the Posterior Mandible by a Modified Apically Positioned Flap and Xenogeneic Collagen Matrix
Xi Jiang, Ye Lin
This case series demonstrated the regeneration of peri-implant keratinized mucosa (KM) in the posterior mandibles by a modified apically positioned flap and xenogeneic collagen matrix (CM). This modified surgical approach includes a midcrestal incision in the residual KM, partial-thickness flap reflection and apical positioning, removal of submucosal tissue, and CM adaptation. Six patients with 18 implants were recruited. The mean regenerated KM width was 4.81 ± 0.69 mm after 3 months of healing. Histologic analysis of the regenerated KM revealed similar architecture to the native KM.