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Clinical lasers are of two types. Soft lasers are essentially an aid to healing, with relatively few rigorous studies available to support their use. Surgical hard lasers, however, can cut both hard and soft tissues, replacing the scalpel and drill in many areas. After initial experiments with the ruby laser, most clinicians have been using argon, carbon(More)
There seems to be a difference in the susceptibility, prevalence and severity of periodontal disease between children and adults. These differences could be due to; composition of plaque, host response or tissue alterations occurring with age. One of the micro-organisms suspected to play a role in the initiation of periodontal disease is the spirochete. A(More)
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