Background and Objective: Use of self-reported questionnaires in Dentistry may be useful to estimate the prevalence of periodontitis in epidemiological studies. This study aims to assess the accuracy of self-reporting for predicting the prevalence of periodontitis in a Spanish population participating in a diabetes incidence study. Materials and Methods: Data were collected from 231 patients participating in the Di@bet.es study. Eight questions about periodontal health were included in a health patient-reported questionnaire. The outcomes from self-reporting were validated against a full-mouth periodontal examination. Multivariable logistic regression predictive modeling was used to determine the sensitivity, specificity, and area under the receiver operator characteristic curve (AUROCC). Results: Self-reported gum health, loose teeth, tooth appearance, and use of dental floss were associated with different definitions of severe periodontitis. Correlations between responses to the questions were weak. The question "Do you think you might have gum disease?" combined with demographic and well-established risk factors resulted in an AUC value of 0.75, sensitivity of 75.2%, and specificity of 60.6% for severeperiodontitis. The answer to 4 questions combined with age, educational level, smoking status, and tooth loss was 76.4% sensitive and 63.5% specific, with an AUC of 0.75 in predicting prevalence of ≥25% of teeth with probing pocket depth (PPD) ≥6 mm. Conclusion:Predictive models, combining self-reporting on oral health status with demographic and risk factors, were useful for estimating the prevalence of severe periodontitis in the Spanish population. K E Y W O R D S di@bet.es study, epidemiology, oral health surveys, periodontitis | 401 MONTERO ET al. S U PP O RTI N G I N FO R M ATI O N Additional supporting information may be found online in the Supporting Information section. How to cite this article: Montero E, La Rosa M, Montanya E, et al. Validation of self-reported measures of periodontitis in a Spanish Population. J Periodont Res. 2020;55:400-409.
Background : Deproteinised bovine bone mineral (DBBM) has been widely documented as a biomimetic osteoconductive biomaterial. However, the use of xenogeneic biomaterials is not exempted from potential hazards, such as disease transmission or immunogenicity, which has promoted the active research on a new generation of synthetic bone substitutes (SBS) with similar physic-chemical characteristics to natural bone. Aim/Hypothesis : To test whether a guided bone regeneration (GBR) procedure for the treatment of peri-implant dehiscence defects based on the use of a synthetic bone substitute achieves NO-inferior outcomes when compared to the same procedure using a deproteinized bovine bone mineral (DBBM). Materials and Methods : The study was designed as a multicenter randomized clinical trial (RCT). Patients were included if they were expected to present a peri-implant bone dehiscence ≥ 3 mm after implant placement. Implant position was assured by the use of a guided surgery stent. Grafting materials were a synthetic bone substitute in the test group and a deproteinized bovine bone mineral in the control. A crossed-link collagen membrane was placed in both groups following the principles of GBR. Re-entry surgery was performed 6 months after implantation. Primary outcome measure was defect height (DH) resolution between baseline and 6 months, measured with a UNC15 periodontal probe. Additionally, volumetric changes of the augmented area were assessed by means of an intraoral scanner. Results : 17 patients have been enrolled, 6 in the control group and 11 in the test group. 12 out of the 17 dehiscence type defects (70.6%) were completely resolved at the time of re-entry. In the test group, the percentage of DH resolution was 94.3% (6.0 ± 5.0 mm), while in the control group was 88.2% (3.8 ± 4.3 mm), without statistically significant differences between groups. The depreciated bone volume between initial surgery and re-entry was 34.9% in the test group and 43.2% in the control group, without significant differences. Conclusions and Clinical Implications : Within the limitations of this preliminary evaluation, it can be concluded that the analyzed synthetic bone graft is NO-inferior to the reference bone substitute in guided bone regeneration simultaneous to implant placement of peri-implant bone dehiscences.
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