The accuracy of a 3D printing surgical guide determined by CBCT and model analysis
1
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
PURPOSE. The aim of this clinical study was to assess the accuracy of the implants placed using a universal digital surgical guide. MATERIALS AND METHODS. Among 17 patients, 28 posterior implants were included in this study. The digital image of the soft tissue acquired from cast scan and hard tissue from CBCT have been superimposed and planned the location, length, diameter of the implant fixture. Then digital surgical guides were created using 3D printer. Each of angle deviations, coronal, apical, depth deviations of planned and actually placed implants were calculated using CBCT scans and casts. To compare implant positioning errors by CBCT scans and plaster casts, data were analyzed with independent samples t-test. RESULTS. The results of the implant positioning errors calculated by CBCT and casts were as follows. The means for CBCT analyses were: angle deviation: 4.74 ± 2.06°, coronal deviation: 1.37 ± 0.80 mm, and apical deviation: 1.77 ± 0.86 mm. The means for cast analyses were: angle deviation: 2.43 ± 1.13°, coronal deviation: 0.82 ± 0.44 mm, apical deviation: 1.19 ± 0.46 mm, and depth deviation: 0.03 ± 0.65 mm. There were statistically significant differences between the deviations of CBCT scans and cast. CONCLUSION. The model analysis showed lower deviation value comparing the CBCT analysis. The angle and length deviation value of the universal digital guide stent were accepted clinically.
Abstract
PURPOSE. The aim of this clinical study was to assess the accuracy of the implants placed using a universal digital surgical guide. MATERIALS AND METHODS. Among 17 patients, 28 posterior implants were included in this study. The digital image of the soft tissue acquired from cast scan and hard tissue from CBCT have been superimposed and planned the location, length, diameter of the implant fixture. Then digital surgical guides were created using 3D printer. Each of angle deviations, coronal, apical, depth deviations of planned and actually placed implants were calculated using CBCT scans and casts. To compare implant positioning errors by CBCT scans and plaster casts, data were analyzed with independent samples t-test. RESULTS. The results of the implant positioning errors calculated by CBCT and casts were as follows. The means for CBCT analyses were: angle deviation: 4.74 ± 2.06°, coronal deviation: 1.37 ± 0.80 mm, and apical deviation: 1.77 ± 0.86 mm. The means for cast analyses were: angle deviation: 2.43 ± 1.13°, coronal deviation: 0.82 ± 0.44 mm, apical deviation: 1.19 ± 0.46 mm, and depth deviation: 0.03 ± 0.65 mm. There were statistically significant differences between the deviations of CBCT scans and cast. CONCLUSION. The model analysis showed lower deviation value comparing the CBCT analysis. The angle and length deviation value of the universal digital guide stent were accepted clinically.
참고문헌 (23)
- Misch CE, "Dental implant prosthetics" (2014), Elsevier Health Sciences
- Nickenig HJ, "Reliability of implant placement after virtual planning of implant positions using cone beam CT data and surgical (guide) templates", J Craniomaxillofac Surg, 35, pp.207~211 (2007)[DOI]
- Ganz SD, "Three-dimensional imaging and guided surgery for dental implants", Dent Clin North Am, 59, pp.265~290 (2015)[DOI]
- 김종은, "임플란트 가이드 수술을 위한 Planning 방식에 대한 고찰", 대한치과의사협회지, 54(2), pp.108~122 (2016), 대한치과의사협회[DOI]
- Van Assche N, "Accuracy of computer-aided implant placement", Clin Oral Implants Res, 23, pp.112~123 (2012)[DOI]
- Sicilia A, "Computer-guided implant therapy and soft- and hard-tissue aspects. The third EAO consensus conference 2012", Clin Oral Implants Res, 23, pp.157~161 (2012)[DOI]
- Martorelli M, "A new approach in CT artifact removal: three cases study in maxillofacial surgery", Int J Interact Des Manuf, 7, pp.115~124 (2013)[DOI]
- Komiyama A, "Virtually planned and template-guided implant surgery: an experimental model matching approach", Clin Oral Implants Res, 22, pp.308~313 (2011)[DOI]
- Yoon JH, "The accuracy estimate of surgical stents fabricated by digital methods in installing implants on dental models", pp.2017
- Choi B, "Digital flapless implantology", pp.32~51 (2015), Ji-Sung Publishing Co
- Al Quran FA, "Passive fit and accuracy of three dental implant impression techniques", Quintessence Int, 43, pp.119~125 (2012)
- Binon PP, "The effect of implant", abutment hexagonal misfit on screw joint stability, 1996, pp.9, 149~160
- Pozzi A, "Guided surgery with tooth-supported templates for single missing teeth: A critical review", Eur J Oral Implantol, 9, pp.135~153 (2016)
- Verhamme LM, "A clinically relevant accuracy study of computerplanned implant placement in the edentulous maxilla using mucosa-supported surgical templates", Clin Implant Dent Relat Res, 17, pp.343~352 (2015)[DOI]
- Ersoy AE, "Reliability of implant placement with stereolithographic surgical guides generated from computed tomography: clinical data from 94 implants", J Periodontol, 79, pp.1339~1345 (2008)[DOI]
- Behneke A, "Factors influencing transfer accuracy of cone beam CT-derived template-based implant placement", Clin Oral Implants Res, 23, pp.416~423 (2012)[DOI]
- 강병길, "구강스캐너를 이용하여 제작된 CT 가이드 임플란트 수술용 형판의 무치악 거리에 따른 정확도 분석", 대한치과보철학회지, 55(1), pp.1~8 (2017), 대한치과보철학회[DOI]
- Pettersson A, "Accuracy of CAD", CAM-guided surgical template implant surgery on human cadavers: Part I, 2010, pp.103, 334~342
- Cassetta M, "The intrinsic error of a stereolithographic surgical template in implant guided surgery", Int J Oral Maxillofac Surg, 42, pp.264~275 (2013)[DOI]
- Ozan O, "Clinical accuracy of 3 different types of computed tomography-derived stereolithographic surgical guides in implant placement", J Oral Maxillofac Surg, 67, pp.394~401 (2009)[DOI]
- Valente F, "Accuracy of computer-aided oral implant surgery: a clinical and radiographic study", Int J Oral Maxillofac Implants, 24, pp.234~242 (2009)
- Vasak C, "Computed tomography-based evaluation of template (NobelGuide™)-guided implant positions: a prospective radiological study", Clin Oral Implants Res, 22, pp.1157~1163 (2011)[DOI]
- Park C, "Accuracy of implant placement using precision surgical guides with varying occlusogingival heights: an in vitro study", J Prosthet Dent, 101, pp.372~381 (2009)[DOI]