Analysis of correlation between initial alveolar bone density and apical root resorption after 12 months of orthodontic treatment without extraction.

Objective: The aim of the present study was to investigate the correlation between initial alveolar bone density of upper central incisors (ABD-UI) and external apical root resorption (EARR) after 12 months of orthodontic movement in cases without extraction.

Methods: A total of 47 orthodontic patients 11 years old or older were submitted to periapical radiography of upper incisors prior to treatment (T1) and after 12 months of treatment (T2). ABD-UI and EARR were measured by means of densitometry.

Is there correlation between alveolar and systemic bone density?

Objective: The present study assessed the correlation between maxillomandibular alveolar bone density and systemic bone mineral density (BMD).

Methods: Dual-energy X-ray absorptiometry of the anterior and posterior maxillomandibular alveolar bone, of the standard sites for the measurement of BMD (lumbar spine and femur) and the third cervical vertebra was performed on 23 middle-aged women. Periapical radiographs were also obtained, with an aluminum step-wedge as reference for the digital reading of apical bone density of the upper incisors.

Effects of rapid maxillary expansion on middle ear function: one-year follow-up.

Objective: To evaluate the effects of rapid maxillary expansion (RME) on middle ear function before, after, 3 months and one year from expansion procedure.

Patients And Methods: Eighteen patients with mean age of 8.1 years (±3.