Journal of Research in Dental and Maxillofacial Sciences

en Correlation between 3-Dimensional Volumetric Digital Analysis and Direct Technique for Periodontal Phenotype Assessment Periodontology Periodontology Original article Original article <div style="text-align: justify;">Background and Aim: Several methods have been used to evaluate gingival thickness (GT); the most often used is the direct technique (DT), which is invasive. Thus, it is necessary to find a novel, reliable, and non-invasive approach for this purpose. This study aimed to evaluate the accuracy of assessment of periodontal phenotype using 3-dimensional digital analysis (digital technique) in comparison with the DT.    Materials and Methods: This cross-sectional study included 30 periodontally healthy participants between 20 and 25 years. One calibrated examiner performed all the measurements. GT and bone thickness (BT) were evaluated at 2 mm (GT2, BT2) and 4 mm (GT4, BT4) apical to the alveolar bone crest around 6 teeth i.e., one molar, one premolar and one incisor in each arch. In the DT, transgingival probing was performed using an endodontic file and a digital vernier caliper. In the digital technique, the DICOM data of cone-beam computed tomography (CBCT) and stereolithography (STL) data were superimposed to perform a digital analysis. Statistical analyses were conducted using the Student's t-test and Pearson’s correlation coefficient (alpha=0.05).    Results: Tooth-wise comparison of GT2, GT4, BT2, and BT4 measurements between the DT and digital technique groups showed very high correlation (r=0.86) for all the included teeth. The GT and BT measurements also showed very high correlation (r>0.8) between the two techniques. Conclusion: The results showed that digital measurement with STL-DICOM file superimposition was a reliable and reproducible technique comparable to the DT with an endodontic file.  </div> Cone-Beam Computed Tomography, Gingiva, Maxilla, Stereolithography 192 202 http://jrdms.dentaliau.ac.ir/browse.php?a_code=A-10-1649-1&slc_lang=en&sid=1 Sruthima Gottumukkala sruthima@gmail.com 100319475328460015479 100319475328460015479 Yes Department of Periodontics and Implantology, Vishnu Dental College Poornima chittabathina poornimachittabathina999@gmail.com 100319475328460015480 100319475328460015480 No Department of Periodontics and Implantology, Vishnu Dental College Gautami S Penmetsa penmetsagautami@gmail.com 100319475328460015481 100319475328460015481 No Department of Periodontics and Implantology, Vishnu Dental College M Satyanarayana Raju drsatya@doctor.com 100319475328460015482 100319475328460015482 No Department of Prosthodontics and Implantology, Vishnu Dental College KSV Ramesh ksv006@gmail.com 100319475328460015483 100319475328460015483 No Department of Periodontics and Implantology, Vishnu Dental College Mohan Kumar mosups@gmail.com 100319475328460015484 100319475328460015484 No Department of Periodontics and Implantology, Vishnu Dental College Anil Kumar dranilkumar1979@gmail.com 100319475328460015485 100319475328460015485 No Department of Periodontics and Implantology, Vishnu Dental College Murali Krishna hubikrish777@gmail.com 100319475328460015486 100319475328460015486 No Kumar