title: The use of heterogeneous acellular dermal matrix in the closure of hard palatal fistula.
abstract: OBJECTIVE
  The aim of this study was to evaluate the efficacy of closure of hard palatal fistula using Heal-All(®) Oral Biofilm, a heterogeneous acellular dermal matrix graft.
  
  
  METHODS
  Superior lip mucosal or myomucosal flap and buccal myomucosal flap were used in 20 patients (group 1) (2000-2005); whereas, heterogeneous acellular dermal matrix graft was performed in 18 patients (group 2) (2005-2013). The recurrence in the closed fistula and the obliteration of gingivolabial and gingivobuccal sulci were seen postoperatively with follow-up appointments at 1-3 months for all cases.
  
  
  RESULTS
  The recurrence rate of hard palatal fistula has been reduced from 25 to 11.1% with the use of heterogeneous acellular dermal matrix graft, and the rate of the obliteration of gingivolabial and gingivobuccal sulci has been decreased from 90 to 5.5%.
  
  
  CONCLUSIONS
  Closure of hard palatal fistula using Heal-All(®) Oral Biofilm graft is a useful method with high success rate. It is a day-case procedure especially to avoid dividing the pedical of the flap after follow-up, and the gingivolabial and gingivobuccal sulci do not need further procedures to deep with follow-up.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hunan Provincial people's Hospital, Changsha, PR China. Electronic address: michaelbozhang@gmail.com.
authors.forename: Bo
authors.initials: B
authors.lastname: Zhang
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hunan Provincial people's Hospital, Changsha, PR China.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hunan Provincial people's Hospital, Changsha, PR China.
authors.forename: David
authors.initials: D
authors.lastname: Sarma
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hunan Provincial people's Hospital, Changsha, PR China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Department of Oral and Maxillofacial Surgery, Hunan Provincial people's Hospital, Changsha, PR China.
authors.forename: Jingjing
authors.initials: J
authors.lastname: Chen
mesh_terms: D062088:Acellular Dermis; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D016155:Oral Fistula / Q000601:surgery*; D019647:Oral Surgical Procedures; D021362:Palate, Hard / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications; D012008:Recurrence; D013524:Surgical Flaps; D016896:Treatment Outcome; D014945:Wound Healing; D055815:Young Adult
keywords: Gingivolabial and gingivobuccal sulci; Heterogeneous acellular dermal matrix; Palatal fistula; Postoperative complication; Repair