Evaluation of Marginal Misfit of Metal Frameworks Welded by Gas-Torch, Laser, and Tungsten Inert Gas Methods

Table 1

Mean and standard deviation of the marginal discrepancy (μm) associated with the different techniques before and after welding.

	Type of welding	Mean (μm)	Standard deviation (μm)	N
Before	One-piece	31.2	12.9	10
	Torch	19.2	7.0	10
	Laser	20.7	2.2	10
	TIG	21.3	3.1	10
After	One-piece	31.2	12.9	10
	Torch	22.3	9.1	10
	Laser	23.7	3.8	10
	TIG	23.8	3.9	10