title: Application of calcium sulfate in surgical-orthodontic treatment of impacted teeth: a new procedure to control hemostasis.
abstract: OBJECTIVE
  Calcium sulfate (CaS) is a simple, biocompatible material with a very long, safe clinical history in several different fields of medicine. CaS is a rapidly resorbing material that leaves behind a calcium phosphate lattice, which promotes bone regeneration and hemostasis. The aim of this study was to perform a clinical evaluation of a possible hemostatic effect of calcium sulfate hemihydrate (CaSO(4)), commonly known as plaster of Paris, in the surgical and orthodontic treatment of impacted teeth.
  
  
  METHODS
  Forty-three patients with 66 impacted cuspids and premolars were enrolled in this study. The gap between teeth and bone was filled with several layers of CaS cement. Each layer was put in place and was compressed with a dry gauze. The outer layer was then hardened with a potassium sulfate solution. After hardening, the CaS excess was removed, and a bracket was applied to the surface of the tooth.
  
  
  RESULTS
  In no case was a separation of the bracket by the surface of the tooth observed.
  
  
  CONCLUSIONS
  These results seem to confirm the usefulness of the hemostatic effect of CaS in this procedure.
authors.affiliation: Dental School, University of Chieti-Pescara, Chieti, Italy. ascarano@unich.it
authors.forename: Antonio
authors.initials: A
authors.lastname: Scarano
authors.forename: Francesco
authors.initials: F
authors.lastname: Carinci
authors.forename: Emilio
authors.initials: E
authors.lastname: Cimorelli
authors.forename: Manlio
authors.initials: M
authors.lastname: Quaranta
authors.forename: Adriano
authors.initials: A
authors.lastname: Piattelli
mesh_terms: D000134:Acid Etching, Dental; D000541:Alveolectomy; D001641:Bicuspid / Q000601:surgery; D001672:Biocompatible Materials / Q000627:therapeutic use*; D002133:Calcium Sulfate / Q000627:therapeutic use*; D032561:Cotton Fiber; D003481:Cuspid / Q000601:surgery; D001840:Dental Bonding; D006490:Hemostatics / Q000627:therapeutic use*; D006801:Humans; D006472:Oral Hemorrhage / Q000517:prevention & control; D016910:Orthodontic Brackets; D013431:Sulfates / Q000627:therapeutic use; D013524:Surgical Flaps; D014087:Tooth Movement Techniques / Q000295:instrumentation / Q000379:methods*; D014095:Tooth, Impacted / Q000601:surgery* / Q000628:therapy; D014945:Wound Healing
chemical_list: D001672:Biocompatible Materials; D006490:Hemostatics; D013431:Sulfates; C031512:potassium sulfate; D002133:Calcium Sulfate