Effect of Tooth Abrasion Degree on Accuracy of Cerec Occlusion Contact

doi:10.13701/j.cnki.kqyxyj.2018.08.020

Abstract

Abstract: Objective: To study the effect of different abrasion degree on the accuracy of occlusal contact of optical impression made by CEREC Omnicam chair system. Methods: From December 2016 to June 2017 in patients who visited affiliated Stomatological Hospital of Nanchang University, 84 mandibular first molar teeth were selected as the research object according to the inclusion criteria, including 41 teeth at mild abrasion and 43 teeth at moderate abrasion. CEREC Omnicam chairside system was used to make intraoral optical impression of occlusal contacts. Canon EOS 60D SLR camera was used to record the mouth bite mark image. The overlap rate of the occlusal contact area was calculated and the accuracy of the occlusal contacts of the optical impression was evaluated. Results: The average overlap rates of occlusal contact area in mild abraion group and moderate abraion group were (86.68±1.41) and (87.60±2.06), respectively (P<0.05). Conclusion: The accuracy of occlusal contact of intraoral optical impression of CEREC Omnicam chairside system was high for both mild and moderate wear teeth. Tooth wear has a certain influence on the accuracy of impression.

Key words: Cerec chairside system, occlusal contact, wear

JIANG Hui, ZENG Li-wei, DENG Lu, JIAO Ji-lan, ZHAN Ai-ping, LI Xiao-xia. Effect of Tooth Abrasion Degree on Accuracy of Cerec Occlusion Contact[J]. Journal of Oral Science Research, 2018, 34(8): 885-888.

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