Use of acellular collagen matrix for the closure of the open oral wound in bone regeneration

Abstract

Mucograft is collagen matrix was designed for use in open healing situations due to its compact outer layer. The technique presented in this article is an attempt to avail this attribute for covering open oral wound in guided bone regeneration (GBR) procedure. The essential idea of this technique is to avoid scoring of periosteum, submucosa and muscle layer for buccal flap advancement. Therefore, we used mucograft to cover bone substitute and barrier membrane in GBR surgical procedure. Thus, we avoided periostal-releasing incisions (PRI) and gained reposition of the flap to original level without impairing the attached keratinized gingiva. Buccal flap advancement in situations of shallow vestibulum, shortly attached gingiva and strong muscle pull may reduce or eliminate attached gingiva with an adverse effect on extended survival of placed implants. This technique promises to be beneficial for the preservation of the soft tissue around dental implants after GBR procedure.