Comparison of time and cost between conventional surgical planning and virtual surgical planning in orthognathic surgery in Korea

Maxillofacial Plastic and Reconstructive Surgery

Table 3 Time reduction rate for each category in VSP comparing with CSP

Category	Step	Group I (%)	Group II (%)
Outpatient workup	Clinical photograph	-
	2D radiography and CBCT
	Interview
	Impression	49.0*	3.6
	Facebow transfer	100.0*	-
	Bite registration	54.2*	5.4
Subtotal		35.0*	1.6
Office workup	Surgical planning	−1.3	−1.25
	Mounting (Hanau articulator)	100.0*	-
	Mounting (simple articulator)	5.6	−1.0
Subtotal		−2.3	14.8*
Laboratory	Case confirm	−100	−100
Laboratory	Stent fabrication	79.8*	74.6*
Subtotal		76.7*	70.4*
Total		62.8*	41.5*

Abbreviations: CSP conventional surgical planning, VSP virtual surgical planning
*Statistically significant (P < 0.01)