Abstract
Er: YAG laser pulpotomy was used to treat 14 primary molars in 8 patients. Following the procedure, none of the teeth showed abunormal clinical or radiographic findings, except for one whict demonstrated internal root resorption one year after the procedure, the cell components of pulp tissuc had disappeared which was revealed in histo-pathological examination examination. Further, there waino hard tissue formation or root obliteration observed in any of the patients. These results suggest tha an Er: YAG laser pulpotomy procedure leads to the good clinical results, though the pulp may som etimes be necrosed. Additional advantages include a quick cessation of bleeding, shortened treatment time, and absence of post-operative pain. Therefore this type of laser pulpotomy may be acceptable for clinical uses after further consideration of the output power required in order to prevent the pulp necrosis.
