Clinical intervention
bleeding, tooth
BLEEDING, GINGIVAL BLEEDING, PLAQUE, PCP, PLAQUE
The cleansing efficacy of the microburst technology (The study design consisted of four appointments for each subject. At the first appointment all probands were thoroughly informed about the study protocol, inclusion and exclusion criteria were surveyed, and an informed consent was signed. Moreover, baseline hygiene indices were evaluated using the Rustogi Modified Navy Plaque Index (RMNPI) [The Rustogi Modified Navy Plaque Index (RMNPI) splits every buccal and lingual tooth surface into nine sections (A–I) that are assessed for the presence or absence of plaque. The index allows to draw a distinction between marginal areas of the teeth (A–C), interdental areas (D, F), or overall surface areas (A–I). RMNPI is calculated as the percentage of biofilm adhering sites to measured sites. For the assessment of the gingival bleeding index (GBI), a periodontal probe (PCP 12, Hu Friedy, Chicago, USA) was inserted into the gingival sulcus to decide dichotomously at six sites per tooth (mesiobuccal–buccal–distobuccal–mesiolingual–lingual–distolingual) if bleeding occurred or not. The percentage of bleeding sites to measured sites was calculated. Teeth that were not integrated in the fixed orthodontic treatment were excluded. All examinations were conducted by one trained examinator.Randomization of the test products was computer-generated prior to investigation using After 28 days using the first test product, the study subjects presented for their second visit. The hygiene indices and inclusion/exclusion criteria were surveyed again. After a wash out phase of 28 days where the probands were practicing their usual oral hygiene procedures, they presented for the third visit. Again, plaque was disclosed, and the subjects were thoroughly instructed to use the second product followed by a professional dental cleaning. In analogy to the first test phase, the subjects used the product for 28 days and then presented for examination of the plaque and gingival index in the context of the fourth and final appointment of the study.