Impact of cone-beam computed tomography on implant planning and on prediction of implant size
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Data
2014
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Resumo
The aim was to investigate the impact of cone-beam comput-
ed tomography (CBCT) on implant planning and on prediction of final
implant size. Consecutive patients referred for implant treatment were
submitted to clinical examination, panoramic (PAN) radiography and a
CBCT exam. Initial planning of implant length and width was assessed
based on clinical and PAN exams, and final planning, on CBCT exam
to complement diagnosis. The actual dimensions of the implants placed
during surgery were compared with those obtained during initial and
final planning, using the McNemmar test (p < 0.05). The final sample
comprised 95 implants in 27 patients, distributed over the maxilla and
mandible. Agreement in implant length was 50.5% between initial and
final planning, and correct prediction of the actual implant length was
40.0% and 69.5%, using PAN and CBCT exams, respectively. Agreement
in implant width assessment ranged from 69.5% to 73.7%. A paired
comparison of the frequency of changes between initial or final planning
and implant placement (McNemmar test) showed greater frequency of
changes in initial planning for implant length (p < 0.001), but not for
implant width (p = 0.850). The frequency of changes was not influenced
by implant location at any stage of implant planning (chi-square test,
p > 0.05). It was concluded that CBCT improves the ability of predict-
ing the actual implant length and reduces inaccuracy in surgical dental
implant planning.
Descrição
Palavras-chave
Dental implants, Cone-beam computed tomography, Radiography, Panoramic
Citação
PEDROSO, Ludmila Assunção de Mello et al. Impact of cone-beam computed tomography on implant planning and on prediction of implant size. Brazilian Oral Research, São Paulo, v. 28, n. 1, p. 46-53, 2014.