Srpski arhiv za celokupno lekarstvo 2011 Volume 139, Issue 3-4, Pages: 138-142
https://doi.org/10.2298/SARH1104138S
Full text ( 268 KB)
Cited by
Reliability of computerized cephalometric outcome predictions of mandibular set-back surgery
Stefanović Neda (Stomatološki fakultet, Klinika za ortopediju vilica, Beograd)
Glišić Branislav (Stomatološki fakultet, Klinika za ortopediju vilica, Beograd)
Šćepan Ivana (Stomatološki fakultet, Klinika za ortopediju vilica, Beograd)
Introduction. A successful treatment outcome in dentofacial deformity
patients commonly requires combined orthodontic-surgical therapy. This
enables us to overcome functional, aesthetic and psychological problems.
Since most patients state aesthetics as the primary motive for seeking
therapy, cephalometric predictions of treatment outcome have become the
essential part of treatment planning, especially in combined
orthodontic-surgical cases. Objective. The aim of this study was to evaluate
the validity and reliability of computerized orthognathic surgery outcome
predictions generated using the Nemotec Dental Studio NX 2005 software.
Methods. The sample of the study consisted of 31 patients diagnosed with
mandibular prognathism who were surgically treated at the Hospital for
Maxillofacial Surgery in Belgrade. Investigation was done on lateral
cephalograms made before and after surgical treatment. Cephalograms were
digitized and analyzed using computer software. According to measurements
made on superimposed pre- and postsurgical cephalograms, the patients were
retreated within the software and the predictions were assessed by measuring
seven angular and three linear parameters. Prediction measurements were then
compared with the actual outcome. Results. Results showed statistically
significant changes between posttreatment and predicted values for parameters
referring to lower lip and mentolabial sulcus position. Conclusion.
Computerized cephalometric predictions for hard-tissue structures in the
sagittal and vertical planes, as well as the VTO parameters, generated using
the Nemotec Dental Studio NX 2005 software are reliable, while lower lip and
mentolabial sulcus position predictions are not reliable enough.
Keywords: dentofacial deformity, computerized predictions, manidbular prognathism
More data about this article available through SCIndeks