The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Reliability of a chairside CAD-CAM surgical guide for dental implant surgery on the anterior maxilla: An in vitro study

  • Phyo Ei Ei Htay (Department of Prosthodontics, College of Dentistry, Kyung Hee University) ;
  • Richard Leesungbok (Department of Biomaterials and Prosthodontics, Kyung Hee University College of Dentistry, Kyung Hee University Dental Hospital at Gangdong) ;
  • Suk Won Lee (Department of Biomaterials and Prosthodontics, Kyung Hee University College of Dentistry, Kyung Hee University Dental Hospital at Gangdong) ;
  • Yu-Jin Jee (Department of Oral and Maxillofacial Surgery, Kyung Hee University College of Dentistry, Kyung Hee University Dental Hospital at Gangdong) ;
  • Kyung Lhi Kang (Department of Periodontics, Kyung Hee University College of Dentistry, Kyung Hee University Dental Hospital at Gangdong) ;
  • Sung Ok Hong (Department of Oral and Maxillofacial Surgery, Kyung Hee University College of Dentistry, Kyung Hee University Dental Hospital at Gangdong)
  • Received : 2023.07.11
  • Accepted : 2023.10.25
  • Published : 2023.10.31
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Abstract

PURPOSE. This study evaluated the reliability of the chair-side CAD-CAM surgical guide (CSG) in the anterior maxilla by comparing its accuracy with the laboratory 3D-printed surgical guide (3DSG) and manual surgical guide (MSG) concerning different levels of dentists' surgical experience. MATERIALS AND METHODS. Ten surgical guides of each type (MSG, 3DSG, and CSG) were fabricated on a control study model with missing right and left central incisors. Sixty implants were placed in 30 study models by two dentists (one inexperienced and one experienced) using three different types of surgical guides. Horizontal deviations at shoulder and at apex, vertical, and angular deviations were measured after superimposing the planned and placed implant positions in the software. Kruskal-Wallis and Mann-Whitney U tests were used to compare the accuracy of three types of surgical guides in each dentist group and the accuracy of each surgical guide between two dentists (α = .05). RESULTS. There were no significant differences in any deviations between CSG and 3DSG, apart from angular deviation, for both dentists' groups. Moreover, both CSG and 3DSG showed no significant differences in accuracy between the two dentists (P > .05). In contrast, MSG demonstrated significant differences from CSG and 3DSG and a significant difference in accuracy between the two dentists (P < .05). CONCLUSION. CSG provides superior accuracy to MSG in implant placement in the maxillary anterior region and is comparable to 3DSG at different levels of surgical experience, while offering the benefits of shorter manufacturing time and reduced patient visits.

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