table clinics 2021 C D A J O U R N A L , V O L 4 9 , Nº 9
Winners of the 2021 Dennis Shinbori, DDS, Table Clinic Competition Dental students, dental assistant students and military/residents from across the state competed virtually in the California Dental Association’s annual Table Clinic Competition, now named in honor of the late Dennis Shinbori, DDS, at CDA Presents in May. Judges conducted Q&A sessions via Zoom with the top 17 applicants for the second round and winners were announced during a live awards presentation May 16. The Journal is pleased to publish abstracts from the first-place winners in each category.
dental student winners Dental students Eugenie Choi, Christopher Chaffin and Joraldine Feliciano received first place in the dental student category. Their research evaluated intraoral scanners.
Ability of Intraoral Scanners To Capture Crown Finish Line at Various Depths Eugenie Choi, Christopher Chaffin and Joraldine Feliciano, Loma Linda University School of Dentistry
Intraoral scanners (IOSs) have increased in use in dentistry, but there is a notable absence of literature analyzing their ability to capture a distinct and accurate crown finish line. This study measured the distinctness of the finish line of an all-ceramic crown typodont tooth at 1 mm supragingival to 3 mm
ABSTRACT:
subgingival depths, decreasing in 1 mm increments. The tooth was inserted into five 3D printed dentoform models with a removable gingiva and scanned. Each scan was superimposed over a control scan of the tooth, sectioned at 12 points, and the distinctness of the finish line was measured by finding the radius of each sectioned exit angle. Statistical analysis found that finish line distinctness decreased as subgingival depths increased and were statistically significant below the 1 mm subgingival depth. The results of this study appear to show that IOSs cannot capture a distinct and accurate finish line below 1 mm subgingival depths. T HE CORRE S P ON DIN G AU T HOR , Eugenie Choi, can be reached at euchoi@students.llu.edu.
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