title: Bone defect repair on the alveolar wall of the maxillary sinus using collagen membranes and temporal fascia: an experimental study in monkeys.
abstract: Few studies has been done using guided bone regeneration in maxillary sinus defects.
  
  
  OBJECTIVE
  To assess the bone repair process in surgical defects on the alveolar wall of the monkey maxillary sinus, which communicates with the sinus cavity, by using collagen membranes: Gen-derm--Genius Baumer, Pro-tape--Proline and autologous temporal fascia.
  
  
  METHODS
  In this prospective and experimental study, orosinusal communications were performed in four tufted capuchin monkeys (Cebus apella) and histologic analysis was carried out 180 days after.
  
  
  RESULTS
  In the defects without a cover (control), bone proliferation predominated in two animals and fibrous connective tissue predominated in the other two. In defects repaired with a temporal fascia flap, fibrous connective tissue predominated in three animals and bone proliferation predominated in one. In the defects repaired with Gen-derm or Pro-tape collagen membranes there was complete bone proliferation in three animals and fibrous connective tissue in one.
  
  
  CONCLUSIONS
  Surgical defect can be repaired with both bone tissue and fibrous connective tissue in all study groups; collagen membranes was more beneficial in the bone repair process than temporal fascia or absence of a barrier.
authors.affiliation: PhD, assistant professor.
authors.forename: Adalberto Novaes
authors.initials: AN
authors.lastname: Silva
authors.affiliation: PhD, assistant professor.
authors.forename: José Américo
authors.initials: JA
authors.lastname: de Oliveira
authors.affiliation: PhD, full professor.
authors.forename: Maria Célia
authors.initials: MC
authors.lastname: Jamur
authors.affiliation: Technician.
authors.forename: José Ari Gualberto
authors.initials: JAG
authors.lastname: Junqueira
authors.affiliation: Technician.
authors.forename: Vani Maria
authors.initials: VM
authors.lastname: Correa
authors.affiliation: Associate professor, faculty member. Electronic address: mcecilia@hcrp.fmrp.usp.br.
authors.forename: Wilma Terezinha Anselmo
authors.initials: WTA
authors.lastname: Lima
mesh_terms: D000818:Animals; D001672:Biocompatible Materials / Q000627:therapeutic use*; D001861:Bone Regeneration; D002428:Cebus; D003094:Collagen / Q000627:therapeutic use*; D005205:Fascia / Q000637:transplantation*; D048091:Guided Tissue Regeneration / Q000379:methods*; D008443:Maxillary Sinus / Q000601:surgery*; D008567:Membranes, Artificial; D011446:Prospective Studies
chemical_list: D001672:Biocompatible Materials; D008567:Membranes, Artificial; D003094:Collagen