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  Indian J Med Microbiol
 

Figure 5: A patient from the HFV group with class I malocclusion (a) before and (b) after treatment with Invisalign clear aligners. Total treatment with 34 aligners was 175 days. (Average aligner change of 5.14 days)

Figure 5: A patient from the HFV group with class I malocclusion (a) before and (b) after treatment with Invisalign clear aligners. Total treatment with 34 aligners was 175 days. (Average aligner change of 5.14 days)