Clinical and microbiological results following nonsurgical periodontal therapy with or without local administration of piperacillin/tazobactam

Lauenstein, Marc; Kaufmann, Marion; Persson, G. Rutger (2013). Clinical and microbiological results following nonsurgical periodontal therapy with or without local administration of piperacillin/tazobactam. Clinical oral investigations, 17(7), pp. 1645-1660. Springer Berlin Heidelberg 10.1007/s00784-012-0856-4

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OBJECTIVES We assessed if adjunct administration of piperacillin/tazobactam added clinical and microbiological treatment benefits. MATERIALS AND METHODS Thirty-six subjects (mean age 52.1 years (SD ± 10.3)) (NS by group) with chronic periodontitis were randomly enrolled receiving subgingival debridement and the local administration of piperacillin/tazobactam (test group) or debridement alone (control group). Bleeding on probing (BOP), probing pocket depth (PPD), and microbiological counts of 74 species were studied by checkerboard DNA-DNA hybridization up to month 6 after treatment. RESULTS Mean PPD changes between baseline and month 6 in the test and control groups were 1.5 and 1.8 mm, respectively (NS between groups). BOP in both groups decreased from about 80 to 40 %. At 4 and 12 weeks, lower counts of the following bacteria were found in the test group (site level): Fusobacterium species, Parvimonas micra, Pseudomonas aeruginosa, Staphylococcus aureus, Tannerella forsythia, Treponema denticola, and a composite load of nine pathogens (p < 0.001). At week 26, subjects receiving local antibiotics had a lower prevalence at tested sites for Fusobacterium nucleatum sp. polymorphum, Fusobacterium periodonticum, P. micra, and T. denticola. CONCLUSIONS At 26 weeks, treatment with or without piperacillin/tazobactam resulted in similar BOP and PPD improvements. At week 26 and at the subject level, the prevalence of 4/74 pathogens was found at lower counts in the group receiving local antibiotics. CLINICAL RELEVANCE Administration of piperacillin/tazobactam reduces the prevalence of Fusobacterium, P. micra, and T. denticola to a greater extent than debridement alone but with no short-term differences in PPD or BOP.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology

UniBE Contributor:

Persson, Gösta Rutger


600 Technology > 610 Medicine & health




Springer Berlin Heidelberg




Eveline Carmen Schuler

Date Deposited:

25 Feb 2014 09:00

Last Modified:

28 Oct 2019 21:44

Publisher DOI:


PubMed ID:





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