Abstract
The aim of this study was to measure changes in buccal alveolar crestal bone levels
after immediate placement and loading of dental implants with Morse taper prosthetic
abutments after tooth extraction. This study followed the STROBE guidelines regarding
prospective cohort studies. The sample comprised 12 patients with a mean age of 45
years, in whom a central or upper lateral incisor was indicated for extraction. Prior
to extraction, computed tomography (CT) analysis was carried out to assess the presence
of the buccal bone crest. CT scans were performed at 24 h and at 6 months after immediate implant placement and immediate loading. The distance
from the most apical point of the implant platform to the buccal bone crest was assessed
at the two time points. The buccal bone crest height was evaluated at three points
in the mesio-distal direction: (1) the centre point of the alveolus, (2) 1 mm mesial to the centre point, and (3) 1 mm distal to the centre point. The values obtained were subjected to statistical analysis,
comparing the distances from the bone crest to the implant platform for the two time
points. After 6 months there was a statistically significant, non-uniform reduction
in height at the level of the crest of the buccal bone in the cervical direction.
It is concluded that the buccal bone crest of the immediate implants that replaced
the maxillary incisors underwent apical resorption when subjected to immediate loading.
Key words
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Article info
Publication history
Published online: December 09, 2014
Accepted:
November 12,
2014
Identification
Copyright
© 2014 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
