Prevalence and severity of apical root resorption and alveolar bone loss in orthodontically treated adults

摘要: This study assessed the frequency of root resorption and alveolar bone loss in 88 adults who had undergone orthodontic treatment. Pretreatment posttreatment periapical radiographs were used to determine amount external apical maxillary mandibular incisors. Alveolar posterior quadrants was determined from bite-wing radiographs. The number incisors showing resorption, including blunting, increased 15% before treatment 73% after having moderate severe 2% 24.5% anterior sites which height exceeded 2 mm cementoenamel junction crest 19% 37% treatment; 7% 14% Bone LOSS > or = 1.5 pretreatment stages occurred 11% 3% sites. A marked increase prevalence over course iatrogenic effects for may be higher than previously reported adolescent studies. small subgroup with multiple either account a disproportionate sequelae. However, general, experience did not preclude adults.