title: Immediate 3-dimensional ridge augmentation after extraction of periodontally hopeless tooth using chinblock graft.
abstract: BACKGROUND
  The aim of the present study was to evaluate clinically and radiographically, the efficacy of immediate ridge augmentation to reconstruct the vertical and horizontal dimensions at extraction sites of periodontally hopeless tooth using an autogenous chin block graft.
  
  
  METHODS
  A total of 11 patients (7 male & 4 female) with localized advanced bone loss around single rooted teeth having hopeless prognosis and indicated for extraction were selected for the study. The teeth were atraumatically extracted and deficient sites were augmented using autogenous chin block graft. Parameters like clinically soft tissue height - width and also radiographic ridge height -width were measured before and 6 months after augmentation. Obtained results were tabulated and analysed statistically.
  
  
  RESULTS
  After 6 months of immediate ridge augmentation, the mean gain in radiographic vertical height and horizontal width was 7.64 + 1.47 mm (P = 0.005) and 5.28 + 0.46 mm (P = 0.007) respectively which was found to be statistically significant (P < 0.05). Mean change of width gain of 0.40mm and height loss of 0.40mm of soft tissue parameters, from the baseline till completion of the study at 6 months was observed.
  
  
  CONCLUSIONS
  The present study showed predictable immediate ridge augmentation with autogenous chin block graft at periodontally compromised extraction site. It can provide adequate hard and soft tissue foundation for perfect 3-Dimensional prosthetic positioning of implant in severely deficient ridges.
  
  
  BACKGROUND
  Immediate ridge augmentation, periondontally hopeless tooth, autogenous chin graft, dental implant.
authors.affiliation: MDS, Senior Lecturer, Department of Periodontics & Oral Implantology, Ahmedabad Dental College & Hospital, Bhadaj - Ranchodpura Road, Ahmedabad- 382115 Gujarat, India.
authors.forename: Ankit
authors.initials: A
authors.lastname: Desai
authors.affiliation: MDS, Professor, Department of Periodontics, Bapuji Dental College and Hospital, Davangere-577004, Karnataka, India.
authors.forename: Raison
authors.initials: R
authors.lastname: Thomas
authors.affiliation: MDS, Professor, Department of Periodontics, Bapuji Dental College and Hospital, Davangere-577004, Karnataka, India.
authors.forename: Tarunkumar
authors.initials: T
authors.lastname: A Baron
authors.affiliation: MDS, Lecturer, Department of Periodontics, Bapuji Dental College and Hospital, Davangere-577004, Karnataka, India.
authors.forename: Rucha
authors.initials: R
authors.lastname: Shah
authors.affiliation: MDS, Professor and Head, Department of Periodontics, Bapuji Dental College and Hospital, Davangere-577004, Karnataka, India.
authors.forename: Dhoom-Singh
authors.initials: DS
authors.lastname: Mehta