Fig. 1
From: Effect of damage or contamination to the tips of 200 light-curing units
(A) Examples of damaged and contaminated tips. (B&C) Illustration showing the assessment method with scores ranging from 0 to 8 was assigned to the LCU tip, where 0 had no physical damage or contamination, and 8 was where the physical damage or contamination affected all the eight parts of the LCU tip [21]