1[1]Thornton S, Garnick J. Comparison of ultrasonic to hand instru ments in the removal of subgingival plaque [J]. J Periodontol,1982,53:35-38.
2[2]Breiniger DR, O'Leary TJ, Blumenshine RVH.Comparative effec tiveness of ultrasonic and hand scaling for the removal of subgin gival plaque and calculus[J].J Periodontol,1987,58:9-13.
3[3]Garnick JJ,Dent J.A scanning electron micrographical study of root surfaces and subgingival bacteria after hand and ultrasonic in strumentation[J].J Periodontol,1989,60:441-444.
4[4]Ods S,Ishikawa I.In vitro effectiveness of a newly designed ultra sonic scaler tip for furcation areas [J].J Periodontol,1989,60:634- 638.
5[5]Regnolds MA,Lavigne C,Minah GE ,et al. Clinical effects of simul taneous ultrasonic scaling and subgingival irrigation with chlorhexidine :Mediating influence of periodontal probing depth[J].J Clin Periodontol, 1992,19:595-598.
5Koshy G,Corbet EF, Ishikawa I.A full-mouth disinfection approach to nonsurgical periodontal therapy-prevention of reinfection from bacterial reservoirs[J].Periodontol,2000,2004,36(5): 166-178.
6Quirynen M,Mongardini C,de Soete M,et al.The role of chlorhexidine in the one-stage full-mouth disinfection treatment of patients with advanced adult periodontitis Long-term clinical and microbiological observations[J].J Clin Periodontol,2000,27(8): 578-589.
7Loesche WJ,Grossman NS.Periodontal disease as a specific,albeit chronic,infection:diagnosis and treatment[J].Clin Microbial Rev,2001,14(4):727-752.
8Yukna RA,Vastardis S,Mayer ET.Calculus removal with diamond-coated ultrasonic Inserts in vitro[J].J periodontol,2007,78(1):122-126.
9Ioannou I,Dimitriadis N.Hand instrumentation versus ultrasonic debridement in the treatment of chronic periodontitis:a randomizad clinical and microbiological trial[J].J Clin Periodontol,2009,36(2):132-41.
10Sculean A,Sehwarz F.Non-surgical periodontal treatment with a new ultrasonic device(VectorTm-ultrasonic systeml)or hand insruments,a prospective,controlled clinical study[J].J Clin Periodontol,2004,31(6):428-433.
