Clinical trials

The present study aims at validating the Italian version of one of the most widely used epidemiological questionnaires for periodontitis screening: the CDC/AAP questionnaire \[hereafter referred to as the CDC/AAP\_ITA questionnaire\]. The study also aims to develop a modified version of the CDC/AAP questionnaire, enriched with additional questions, and to evaluate its diagnostic accuracy \[hereafter referred to as the QSIdP questionnaire\]. The study will be conducted at the Unità Complessa di Odontoiatria, Azienda Unità Sanitaria Locale (A.U.S.L.) of Ferrara (Director: Prof. Leonardo Trombelli), in collaboration with nine (9) other Italian clinical centers.

Treatment of supraosseous defects (SD) may be challenging due to their limited regenerative potential. When located in aesthetic areas, treatment may result in a gingival recession increase with consequent patients' concerns in terms of aesthetic or tooth sensibility. In the present study, a minimally-invasive surgical procedure (namely, the Single Flap Approach, SFA) will be combined with the application of a viscoelastic gel containing polynucleotides and hyaluronic acid that was reported to positively modulate periodontal wound healing. The outcomes, evaluated 6 months after treatment, will be compared to those obtained with SFA alone. The evaluated outcomes will be either clinical (evaluation of clinical parameters such as gingival recession, residual probing depth, clinical attachment gain) or related to patient's perception (such as evaluation of the aesthetic or tooth sensibility).