IADR Abstract Archives
A Comparative Study of Alveolar & Basal Bones Density of Human Maxilla and Mandible Using Cone Beam Computed Tomography CBCT
Objectives: This study was done to quantify bone density in the alveolar process and the basal bones of human maxilla and mandible.
Methods: Seventy-four sets of cone beam computed tomography were selected (46 of females, age: 26.2 years ± 5.3, and 28 of males, age: 29.7years± 6.4). Bone density was measured with I-CAT vision software using Housenfield unites (HU) at different sites in maxillary and mandibular alveolar and basal bones.
Results: At the maxillary alveolar bone, the cortical bone density ranged between 207 (in the buccal bone at the molar area) and 954 HU (in buccal cortical bone at the canine area). At tuberosity the means of the bone density were 474 HU, 110 HU and 596 buccally, in the cancellous bone and palatally respectively. At the maxillary basal, the cortical bone density ranged between 241 HU and 1208 HU in the area of canine; in the tuberosity it was 588 HU bucally and 161 HU in cancellous bone. In the mandible the cortical bone density was between 801 HU, buccally in the incisor area, and 1311 HU, palatally at the canine. And it was between 130 HU and 1243 HU at the basal bone.
Conclusions: The mandible showed greater bone density than the maxilla, and bone density was progressively increasing from lower incisors backward. In the maxilla the highest HU values were noticed in the canine and premolar areas, while the lowest HU value was found in the tuberosity.
Methods: Seventy-four sets of cone beam computed tomography were selected (46 of females, age: 26.2 years ± 5.3, and 28 of males, age: 29.7years± 6.4). Bone density was measured with I-CAT vision software using Housenfield unites (HU) at different sites in maxillary and mandibular alveolar and basal bones.
Results: At the maxillary alveolar bone, the cortical bone density ranged between 207 (in the buccal bone at the molar area) and 954 HU (in buccal cortical bone at the canine area). At tuberosity the means of the bone density were 474 HU, 110 HU and 596 buccally, in the cancellous bone and palatally respectively. At the maxillary basal, the cortical bone density ranged between 241 HU and 1208 HU in the area of canine; in the tuberosity it was 588 HU bucally and 161 HU in cancellous bone. In the mandible the cortical bone density was between 801 HU, buccally in the incisor area, and 1311 HU, palatally at the canine. And it was between 130 HU and 1243 HU at the basal bone.
Conclusions: The mandible showed greater bone density than the maxilla, and bone density was progressively increasing from lower incisors backward. In the maxilla the highest HU values were noticed in the canine and premolar areas, while the lowest HU value was found in the tuberosity.