In which cases is a bacterial test useful?

In the context of periodontal treatment, a bacterial test is useful in various indications. Generally speaking, testing with micro-IDent®/micro-IDent®plus should be performed in the following cases.

Before antibiotics are prescribed

In order to avoid over- and undertreatment, antibiotics should never be used indiscriminately from a microbiological viewpoint. Because of the alarming rise in resistance to antibiotics, the G7 Health Ministers and the respective professional societies are calling for antibiotics to be prescribed for therapeutic purposes only and only after individual diagnostic testing. Knowledge of the pathogen spectrum is important for the selection of the antibiotic to be used. In periodontitis treatment too, antibiotics should therefore be prescribed only after marker bacteria analysis.

For periodontal diseases with pocket depths bigger than 4 mm

Probing depths > 4 mm are considered to be a sign of periodontal disease that requires treatment. Depending on other clinical parameters and the individual bacterial load, periodontitis therapy is indicated. A bacterial test with micro-IDent®/micro-IDent®plus should be performed to provide an informed basis for treatment planning.

For therapy-resistant, chronic periodontitis

If no improvement in the clinical findings is observable after treatment has been carried out, there may be a number of reasons for this. These range from poor patient compliance to persistence of bacteria. If clinical findings continue to be poor, then an antibiotic should be administered concomitantly with mechanical periodontitis therapy in the next phase of treatment. An analysis with micro-IDent®/micro-IDent®plus provides a precise overview of the bacterial situation.

For aggressive, rapidly progressive periodontitis

The occurrence of aggressive periodontitis in particular is often associated with the presence of tissue-penetrating, destructive bacterial species such as Aggregatibacter actinomycetemcomitans. Adjunctive antibiotic therapy to reduce the numbers of these organisms is then almost unavoidable. In order to choose the best possible antibiotic, it is then important to know which bacteria are causing the infection.

Prior to extensive implant restorations

Existing periodontitis represents a risk factor for per-implant infections. Analysis of the subgingival flora is therefore particularly worthwhile in implantology prior to extensive, costly restorations. Diagnostically confirmed anti-infective therapy enables the risk of subsequent implant loss to be minimized even before implant insertion.

For peri-implant infections

Scientific studies show that the periodontopathogenic marker bacteria also play an important role in peri-implant infections. That’s why microbiological analysis is also useful in this indication. Like the treatment of periodontitis, peri-implantitis therapy therefore involves mechanical removal of the plaque and, if appropriate, adjunctive antibiotic therapy. In this context too, analysis of the microbial profile helps with creating an individual treatment plan.

For patients in recall for early detection of recurrences

During supportive periodontitis therapy, control analyses can help with monitoring changes in the subgingival flora and responding promptly to any deterioration.