Accession Number : ADA309227

Title :   Guided Bone Regeneration Around Commercially Pure Titanium and Hydroxyapatite-Coated Dental Implants.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Stentz, William C., Jr

PDF Url : ADA309227

Report Date : 25 MAR 1996

Pagination or Media Count : 189

Abstract : In a split-mouth design, 6 implants were placed in edentulous mandibular ridges of 10 mongrel dogs after preparation of 6 cylindrical mid-crestal defects, 5 mm in depth and 10 mm in diameter. An implant site was then prepared in the center of each defect to a depth of 5 mm beyond the apical extent of the defect. One mandibular quadrant received three commercially pure titanium screw implants (3.75 x 10 mm), while the contralateral side received three titanium double plasma sprayed hydroxyapatite-coated root-form implants (3.3 x 10 mm). Consequently, the coronal 5 mm of each implant was surrounded by a circumferential surgically created defect approximately 3 mm wide and 5 mm deep. The three dental implants in each quadrant received either canine demineralized freeze-dried bone (DFDBA) and an expanded polytetrafluoroethylene membrane (e- PTFE), membrane alone, or no treatment which served as the control. Standardized radiographs were taken at one week and 4 months post-implant placement. Computer-Assisted Densitometric Image Analysis (CADIA) was performed for each of the implants. After 4 months of healing, v block sections of the mandibles were harvested for light microscopy and histomorphometric analysis.

Descriptors :   *TITANIUM, *IMPLANTATION, *BONES, *DENTAL IMPLANTOLOGY, *TEETH, SITES, LIGHT, CERAMIC COATINGS, FREEZE DRYING, MICROSCOPY, PURITY, STANDARDIZATION, MEMBRANES, EXPANSION, SIDES, PATIENTS, RADIOGRAPHY, DOGS, HEALING, QUADRANTS, TETRAFLUOROETHYLENE RESINS, DEMINERALIZATION, MANDIBLE.

Subject Categories : Anatomy and Physiology
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE