හවුල් ශ්‍රව්‍ය

Voiceover: "Needle-stick injuries remain one of the most serious risks in dentistry." "Even a small mistake can lead to serious infection." "Proper handling of needles is critical for safety." "Incorrect techniques increase the risk of accidental injury." "This is a dangerous practice and must be avoided." "One wrong move can cause a needle-stick injury." "Now let’s see the correct method." "The one-hand scoop technique reduces risk significantly."