Long-term radiographic evaluation of hydroxylapative-augmented mandibular alveolar ridges

摘要: From six months to four years after alveolar ridge augmentation was performed, the vertical heights of 74 Class III and IV deficiency patients, who had undergone with hydroxylapatite or without autogenous cancellous bone, were measured using panoramic radiographs adjusted for magnification errors. No statistically significant decreases in seen when only used, nor there differences between two types particles used. Unlike other bone onlay procedures, use HA together did not result height.