钦州“两化”建设开辟“两大主战场”——钦州工业化、城镇化发展扫描

Subgingival plaque removal at interproximal sites by automatic and hand toothbrushes was compared with control sites at which cleansing was not performed. There were 58 patients, 35 to 63 years of age, each with one hopeless tooth requiring extraction. Each patient was randomly assigned to one of fo... View More