title: Is there correlation between alveolar and systemic bone density?
abstract: 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.
  
  
  RESULTS
  Spearman's correlations coefficients revealed that density in the apical region was correlated with that of the femoral neck (r = 0.433; p < 0.05); BMDs of the posterior regions of the mandible and maxilla were significantly correlated with that of the cervical vertebra (r = 0.554, p ≤ 0.01 and r = 0.423, p ≤ 0.05, respectively); and the anterior maxilla was correlated with the posterior mandible (r = 0.488, p ≤ 0.05).
  
  
  CONCLUSIONS
  Bone density of the maxillary alveolar bone was significantly correlated with that of the femoral neck. Among the bone densities of the alveolar regions, only the anterior maxilla and the posterior mandible were significantly correlated. The findings suggested that bone densitometry might be individually and locally evaluated.
authors.forename: Paula Cabrini
authors.initials: PC
authors.lastname: Scheibel
authors.forename: Adilson Luiz
authors.initials: AL
authors.lastname: Ramos
authors.forename: Lilian Cristina Vessoni
authors.initials: LC
authors.lastname: Iwaki
mesh_terms: D015502:Absorptiometry, Photon; D000328:Adult; D000539:Alveolar Process / Q000000981:diagnostic imaging / Q000502:physiology*; D015519:Bone Density; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000502:physiology*; D003720:Densitometry; D005260:Female; D005270:Femur Head / Q000000981:diagnostic imaging / Q000502:physiology; D005272:Femur Neck / Q000000981:diagnostic imaging / Q000502:physiology*; D006801:Humans; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging / Q000502:physiology*; D008334:Mandible / Q000000981:diagnostic imaging; D008437:Maxilla / Q000000981:diagnostic imaging; D008875:Middle Aged; D018709:Statistics, Nonparametric
keywords: Bone density; Densitometry; Dental radiography