Purpose: Success rates for maxillary implant treatment are lower than for mandibular treatment
because of the presence of poorer bone quality or quantity in the maxilla. The purpose of this
study was to determine favorable implant positions in the maxilla using implant simulation
software and clinical anatomical morphology together with bone quality data obtained by
computed tomography (CT). Materials and Methods: A convenience research sample of 10
edentulous subjects was recruited, and research information from right and left edentulous sites
was obtained from each subject. The height, width, angulation, and Hounsfield unit value of the
maxillary alveolar bone were measured using CT data obtained from the subjects. Results: Bone
height in the incisor area was significantly greater than in the molar area, and bone width in the
incisor area was significantly narrower than in the molar area. The average bone quality in the
maxillary molar area was significantly higher when compared with the premolar and incisor areas.
The angle between the occlusal plane and the bisector of the alveolar bone in the incisor area
was reduced when compared with the molar area. Conclusion: The premolar region appears
to be the most favorable area in the maxillary arch for implant placement with regard to bone
height, width, angulation, and quality.