ABSTRACT
Interproximal bony defects were treated with either porous hydroxyapatite (PHA) or decalcified freeze-dried bone allograft (DFDB) implants at two different clinical centers. Twelve paired defects in 12 patients were treated at each center. Six months post-surgically the defects were measured to assess changes from the presurgical status. No statistically significant differences were found between the groups in changes in gingival fluid, bleeding index, plaque index, or tooth mobility. The porous hydroxyapatite implant produced greater reduction in pocket depth (P = 0.03) and more gain in clinical attachment level (P = 0.001) and defect fill (P = 0.001) when compared with DFDB grafted sites. This study indicates that more clinical resolution of interproximal periodontal defects in humans can be obtained with the use of PHA than with the use of DFDB.
Subject(s)
Alveoloplasty/methods , Bone Transplantation , Hydroxyapatites , Periodontal Diseases/surgery , Prostheses and Implants , Adult , Alveolar Process/pathology , Bone Transplantation/methods , Decalcification Technique , Dental Plaque Index , Durapatite , Freeze Drying , Humans , Periodontal Diseases/pathology , Periodontal Index , Periodontal Pocket/pathology , Periodontal Pocket/surgery , Random Allocation , Surface PropertiesABSTRACT
In 12 cases a systematical periodontal therapy involved surgical treatment (mod. Widman flap operation). 16 intrabony defects with more than 6 mm pocket depth measured at the beginning of periodontal therapy were filled with porous hydroxyl- (Interpore 200) as well as decalcified freeze dried bone grafts. For judgement of the therapeutic success plaque index, sulcus bleeding index, mobility of teeth treated by surgical methods, pocket depth, attachment level, and x-ray documentation were used before the operation and after 6 month maintenance therapy.