Research Article

Research on the Characteristics of Food Impaction with Tight Proximal Contacts Based on Deep Learning

Table 5

Principal component analysis of impaction and nonimpaction (adjusted).

ItemLoading coefficientCommunality (common factor variance)
Principal component 1Principal component 2

Adjacent line length0.705-0.1000.507
Adjacent surface area0.719-0.1340.535
Buccal abduction gap angle-0.1580.9090.851
Occlusal abduction gap angle-0.657-0.4720.654

Note: the numbers in the table are overstriking: bold means the absolute loading factor coefficient is greater than 0.4; otherwise is less than 0.4.