title: Alveolar ridge preservation with autologous particulated dentin-a case series.
abstract: BACKGROUND
  Ridge preservation can be performed with autologous bone, alloplastic bone substitute material or a combination of both. Dentin is similar to bone in its chemical composition. In its use as bone substitute material, it undergoes a remodelling process and transforms to bone. The presented case report introduces a technique in which the extraction socket is augmented with autologous, particulated dentin.
  
  
  METHODS
  The fractured, non-savable mesial incisor of the upper jaw was carefully extracted in axial direction. After the extraction, the tooth was cleared from remaining periodontal tissue. The vital pulp tissue or a root canal filling, enamel and cementum were also removed. Following the particulation of the remaining dentin in a bone mill, the dentin particles were immediately filled orthotope into the alveolar socket. The soft tissue closure was performed with a free gingival graft of the palate.
  
  
  RESULTS
  After an observation period of 4 months, an implant was placed in the augmented area, which osseointegrated successfully and could be restored prosthodontically in the following. The results of this method showed a functional and aesthetic success.
  
  
  CONCLUSIONS
  The pre-implantological, autologous ridge preservation with dentin could be performed successfully. For the establishment of dentin as augmentation material for jaw augmentation procedures, a prospective, clinical trial is now necessary.
authors.affiliation: Clinic of Cranio-Maxillofacial and Oral Surgery, Center of Dental Medicine, University of Zurich, University Hospital Zurich, Plattenstrasse 11, 8032, Zürich, Switzerland. silvio.valdec@zzm.uzh.ch.
authors.forename: Silvio
authors.initials: S
authors.lastname: Valdec
authors.affiliation: Clinic of Cranio-Maxillofacial and Oral Surgery, Center of Dental Medicine, University of Zurich, University Hospital Zurich, Plattenstrasse 11, 8032, Zürich, Switzerland.
authors.forename: Pavla
authors.initials: P
authors.lastname: Pasic
authors.affiliation: Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland.
authors.forename: Alex
authors.initials: A
authors.lastname: Soltermann
authors.affiliation: Clinic of Fixed and Removable Prosthodontics and Dental Material Science, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.
authors.forename: Daniel
authors.initials: D
authors.lastname: Thoma
authors.affiliation: Clinic of Cranio-Maxillofacial and Oral Surgery, Center of Dental Medicine, University of Zurich, University Hospital Zurich, Plattenstrasse 11, 8032, Zürich, Switzerland.
authors.forename: Bernd
authors.initials: B
authors.lastname: Stadlinger
authors.affiliation: Clinic of Cranio-Maxillofacial and Oral Surgery, Center of Dental Medicine, University of Zurich, University Hospital Zurich, Plattenstrasse 11, 8032, Zürich, Switzerland.
authors.forename: Martin
authors.initials: M
authors.lastname: Rücker
keywords: Alveolar ridge preservation; Autologous augmentation; Bone augmentation; Bone substitute; Particulated dentin