A new method to evaluate volumetric changes in sinus augmentation procedure

Claudia Dellavia, Stefano Speroni, Gaia Pellegrini, Alessandra Gatto, Carlo Maiorana

Research output: Contribution to journalArticlepeer-review


BACKGROUND: In sinus augmentation procedure, the assessment of volume changes of grafted materials is important both in the clinical practice and in dental research to evaluate the features of filling materials.

PURPOSE: In this study, we assessed the repeatability of a new method proposed to evaluate volumetric changes following sinus lift augmentation procedure.

MATERIALS AND METHODS: In 10 patients, maxillary sinus augmentation procedure with simultaneous implant placement was performed. Maxillary cone beam computer tomographies were taken 1 week after surgery (T1) and 6 months after surgery (T2). At each evaluation the gap inside the implant between the fixture and the bottom of the screw was used as reference point (Rp), and a standardized volume of interest (VOI) centered on the Rp was selected. Masks were chosen to select the graft and bone tissue within the VOI; the volume at T1, T2, and the difference of volume between T1 and T2 were computed. Expert and non-expert operators performed the analysis. Method errors were computed.

RESULTS: The error of the method was 1% for both intra-operator and inter-operator measurements. Tissue contraction at T2 was 19 ± 4% of the total initial volume.

CONCLUSIONS: The standardization of the method allows to obtain repeatable measurements.

Original languageEnglish
Pages (from-to)684-690
Number of pages7
JournalClinical Implant Dentistry and Related Research
Issue number5
Publication statusPublished - Oct 1 2014


  • autogenous bone graft
  • CBCT imaging
  • computer-assisted
  • cone beam CT
  • maxillary reconstruction
  • maxillary sinus floor elevation
  • sinus augmentation
  • x-ray imaging
  • xenograft

ASJC Scopus subject areas

  • Oral Surgery
  • Dentistry(all)


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