Lasers in Medical Science

, Volume 26, Issue 1, pp 43–48 | Cite as

Efficacy of high intensity diode laser as an adjunct to non-surgical periodontal treatment: a randomized controlled trial

  • Giorgio De Micheli
  • Ana Karina Pinto de Andrade
  • Vanessa Tubero Euzebio Alves
  • Marcio Seto
  • Cláudio Mendes Pannuti
  • Silvana Cai
Original Article


The high intensity diode laser has been studied in periodontics for the reduction of subgingival bacteria in non-surgical treatment. Our study evaluated the bacterial effect as well as changes in periodontal clinical parameters promoted by root scaling and planing associated with this wavelength. Twenty-seven patients randomly assigned in two groups underwent root scaling and planing on the tested sites, and only the experimental group received the diode laser irradiation. Among the clinical parameters studied, the clinical probing depth (CPD) and the clinical attachment level (CAL) resulted in significant enhancement in the control group when compared with the experimental group (P = 0.014 and P = 0.039, respectively). The results were similar for both groups regarding the plaque index (PI) and bleeding on probing (BP). No significant difference in the microbiological parameters was observed between the control and experimental groups. It was possible to conclude that the high power diode laser adjunct to the non-surgical periodontal treatment did not promote additional effects to the conventional periodontal treatment.


Chronic periodontitis Bacterial reduction High power diode laser Non-surgical periodontal Treatment 



The authors would like to thank Fundação de Amparo a Pesquisa no Estado de São Paulo (FAPESP), research grants 2005/56965–8.


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Copyright information

© Springer-Verlag London Ltd 2010

Authors and Affiliations

  • Giorgio De Micheli
    • 1
  • Ana Karina Pinto de Andrade
    • 1
  • Vanessa Tubero Euzebio Alves
    • 1
  • Marcio Seto
    • 1
  • Cláudio Mendes Pannuti
    • 1
  • Silvana Cai
    • 2
  1. 1.Stomatology Department, Periodontics DisciplineSchool of Dentistry, University of São Paulo (USP)São PauloBrazil
  2. 2.Microbiology Department, Institute of Biomedical SciencesUniversity of São Paulo (USP)São PauloBrazil

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