Which of the following is an advantage of performing phase I therapy before phase II?

Performing phase I therapy before phase II offers the significant advantage of reducing inflammation. Phase I therapy, commonly referred to as non-surgical therapy, includes procedures like scaling and root planing, which effectively address plaque and calculus buildup. This phase aims to control and reduce periodontal disease by eliminating harmful bacterial accumulation and promoting tissue healing.

By managing inflammation first, the tissue may become healthier and less edematous, which can enhance the results of any subsequent phase II surgical interventions. Healthy, non-inflamed tissues are easier to manage during surgical procedures, and the healing response is typically improved. This preparatory step can lead to better outcomes in terms of both tissue response and overall success of the treatment plan.

In contrast, other options present challenges or drawbacks. Immediate surgical intervention without prior periodontal therapy might not yield the best results, as inflamed tissue can complicate surgery. Increased patient costs are likely unless unnecessary procedures or medications are avoided through effective initial therapy. Shorter treatment times are generally not a goal of initial therapy, as proper phase I therapy requires adequate time and effort to achieve effective outcomes before considering surgical intervention.