Final answer:
The recommended sequence for calculus removal using a mechanized instrument is to start at the junctional epithelium and work toward the gingival margin.
Step-by-step explanation:
When using a mechanized instrument for calculus removal, the recommended sequence is to begin at the junctional epithelium and work toward the gingival margin. This method ensures that calculus is completely removed from beneath the gumline, helping to prevent further periodontal disease and maintain oral health. It is important to always follow a methodology that prevents injury to the soft tissue and effectively removes the microbial biofilms and calculus deposits.