Comparative Analysis of Fused Deposition Modeling and Digital Light Processing Techniques for Dimensional Accuracy in Clear Aligner Manufacturing

03 August 2023: Article

Wojciech Grzebieluch ^1ACDEF* , Magdalena Grajzer ^2BDE , Marcin Mikulewicz ^3ABDEF

DOI: 10.12659/MSM.940922

Med Sci Monit 2023; 29:e940922

Table 3 Measurement locations and algorithms used to analyze distortions.

Measurement location	Range	Abbr.	Used algorithm*	Value (+/−) and deformation
46 – buccal surface	46	46 X	C2C absolute distance[2D1/2 Triangulation] k=6 (X)^**	(+) arch bended lingually, (−) arch displaced buccally^**
46 – mesio-buccal cusp	46	46 Z	C2C absolute distance[2D1/2 Triangulation] k=6 (Z)^**	(+) displaced occlusally, (−) displaced apically^**
36 – buccal surface	36	36 X	C2C absolute distance[2D1/2 Triangulation] k=6 (X)^**	(+) arch bended buccally, (−) arch displaced lingually^**
36 – mesio-buccal cusp	36	36 Z	C2C absolute distance[2D1/2 Triangulation] k=6 (Z)^**	(+) displaced occlusally, (−) displaced apically^**
31 – labial surface	31	31 Y	C2C absolute distance[2D1/2 Triangulation] k=6 (Y)^**	(+) moved lingually, (−) moved labially^**
31 – incisal margin	31	31 Z	C2C absolute distance[2D1/2 Triangulation] k=6 (Z)^**	(+) displaced occlusally, (−) displaced apically^**
^* CloudCompare, 2.13.alpha (); ^** positive or negative values measured along axis (X or Y or Z).