True or False: The combination of ultrasonics and hand instrumentation is considered more effective than using either method alone.

The assertion is true because the combined use of ultrasonics and hand instrumentation provides a synergistic effect that enhances the removal of plaque and calculus from tooth surfaces. Ultrasonics can efficiently disrupt biofilm and remove larger deposits, while hand instruments allow for precise adaptation to tooth contours, especially in difficult-to-reach areas. This combination not only improves the effectiveness of periodontal debridement but also reduces the overall time spent on treatment. Additionally, using both methods can help in minimizing trauma to the gingival tissue and improving patient comfort compared to using either method alone. This approach is widely supported by clinical evidence and prevailing best practice protocols within periodontal therapy.