Use of digital periodontal data to compare periodontal treatment outcomes in a practice-based research network (PBRN): a
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RESEARCH ARTICLE
Open Access
Use of digital periodontal data to compare periodontal treatment outcomes in a practice‑based research network (PBRN): a proof of concept Stefanie Anna Peikert1* , Felix Mittelhamm2, Eberhard Frisch1,3, Kirstin Vach4, Petra Ratka‑Krüger1 and Johan Peter Woelber1
Abstract Background: Scientific studies in dentistry are mainly conducted at universities. However, most patients are treated in dental practices, which differ in many ways from treatment at the university. Through the establishment of practicebased research networks, however, it is also possible to examine studies in a real-world setting in dental practices. For this reason the aim of this non-interventional, observational study was to develop and evaluate a digital procedure to access, extract and analyse recorded clinical data in practices to assess periodontal treatment outcomes. Methods: Participating periodontists were former or active postgraduate students of a master’s course in periodon‑ tics in Freiburg who routinely used a digital periodontal diagnostic program. All available stored periodontal patient charts were extracted, anonymized and digitally sent to the study centre. Results: In this study, data were collected from 6301 patients from 9 different practices. Information such as probing depth (PD), bleeding on probing (BOP), mobility, furcation and gingival attachment for 153,163 teeth at first visit were successfully transferred to the study centre. During the average observational period of 9.77 years, only 2.8% of all teeth were lost. The number of visits was significantly negatively correlated with BOP (p
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