Comparison of the accuracy of maxillary position between conventional model surgery and virtual surgical planning

Ritto, Fabio; Schmitt, Alan Robert Moreira; Pimentel, Thaís; Canellas, João Vitor dos Santos; Medeiros, Paulo José

doi:10.1016/j.ijom.2017.08.012

Cited by 95 publications

(69 citation statements)

References 28 publications

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“…Using varied protocols, previous studies showed that the 3D VSP is accurate to predict maxillary positioning, with mean linear differences within the 2 mm . As in the present study, in most studies, accuracy was assessed by measuring the mean linear difference between reference points. Tucker et al evaluated accuracy through the linear difference between the superimposed surfaces.…”

Section: Discussionmentioning

confidence: 70%

“…The aim of this study was to evaluate the accuracy of the 3D VSP for the maxillary positioning and orientation in patients undergoing bimaxillary orthognathic surgery comparing the planned and postsurgical outcomes. Based on previous studies, we assumed a positional difference between the planned and postsurgical outcomes of <2 mm as clinically insignificant, as well as orientation differences of <4° . Although a cut‐off value of 2 mm for clinical significance may seem high, we believe it is important to consider a literature well‐established value to interpret our results.…”

Section: Discussionmentioning

confidence: 98%

“…The main objective of the orthognathic surgery is to correct dentofacial deformities, functional and aesthetic problems. Its success depends not only on surgical techniques, but also on an accurate and detailed treatment plan . Two‐dimensional virtual surgical planning (VSP) has been used for more than 50 years, through patient's clinical data, imaging exams, lateral cephalograms, plaster dental models and semi‐adjustable articulators .…”

Section: Introductionmentioning

confidence: 99%

“…Two‐dimensional virtual surgical planning (VSP) has been used for more than 50 years, through patient's clinical data, imaging exams, lateral cephalograms, plaster dental models and semi‐adjustable articulators . With the advancement of imaging technology, 3D VSP has consolidated as an alternative that provides accurate surgical results, creating new possibilities for the treatment of dentofacial deformities, predicting the repercussion of surgical movements in the skull bases and adjacent soft tissues, and eliminating many of the laboratory steps …”

Section: Introductionmentioning

confidence: 99%

“…Using cone‐beam computed tomography (CBCT) scans and software programs, a computerized composite skull model of the patient is generated to accurately represent the dentition, the skeleton and the soft tissues . It allows high‐quality surgical planning, with autonomy and safety to simulate different surgical movements, overcoming several limitations of 2D planning, in which small errors can accumulate during its various steps, leading to inaccuracies . Moreover, it becomes an important communication tool among professionals .…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Accuracy of 3D virtual surgical planning for maxillary positioning and orientation in orthognathic surgery

Tonin

Filho

Yamashita

et al. 2020

Orthod Craniofacial Res

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Objective This retrospective and observational study evaluated the accuracy of a 3D virtual surgical planning (VSP) for the maxillary positioning and orientation in patients undergoing bimaxillary orthognathic surgery, comparing the planned and postoperative outcomes. Setting and Sample Population Seventy consecutive patients of both sexes, who were submitted to bimaxillary orthognathic surgery between 2015 and 2019 were included in our study. Material and Methods The patients were evaluated by fusing preoperative planning and postoperative outcome using cone‐beam computed tomography scan evaluation. Three‐dimensional VSP and postoperative outcomes were compared by using three linear and three angular measurements. The main outcome interest was the difference between the VSP movement, and the surgical movement obtained. The success criterion adopted was a mean linear difference of <2 mm and a mean angular difference of <4°. Results Results were analysed using a linear mixed model with fixed and random effects, at α = .05. No significant statistical differences were found for linear and angular measurements between the planned and postsurgical outcomes (P > .05). All overlapping points presented values within the range considered clinically irrelevant (<2 mm; <1°). Conclusions Three‐dimensional VSP was executed with a high degree of accuracy. When comparing the planned and postsurgical outcomes, all overlapping points presented values within the range considered clinically irrelevant.

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Section: Discussionmentioning

confidence: 70%

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%