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CAM Surgical Guides
Poster Session
COSMETIC SURGERY
DENTAL IMPLANTS
POSTER 15
POSTER 16
Preferred Chin Projections and Facial Form According to a Person’s Facial Form in Korean
Accuracy Assessment of Single, Immediate Implant Placements using CAD/CAM Surgical Guides
T. Kim: Seoul National University Dental Hospital
N. Massoomi: University of the Pacific-Arthur A. Dugoni School of Dentistry, San Francisco Surgical Arts, Silicon Valley Surgical Arts, A. Nattestad F. Alzoubi
Introduction: One of the most important goals of orthognathic surgery and facial contouring surgery is enhancing facial beauty by improving facial form and outline. Pre-operatively, most facial analyzing methods evaluate the frontal side of the face separately from the lateral side of the face. Therefore, clinicians evaluate patient’s facial form, which is usually categorized into mesocephalic, brachycephalic, or dolicocephalic facial form. It is important to know that patients within each group of facial forms may have different thoughts on esthetic facial form and outline. Therefore, in order to set-up proper surgical treatment objectives to obtain an esthetic facial form and outline, clinicians need to know which group prefers which facial form. Subjects and Methods: Facial 3-Dimensional scan (Morpheus 3d Ver. 2.0, Morpheus Co., Ltd. Seoul Korea) was performed on a male and a female volunteer. The captured images were morphed into three different facial forms: mesocephalic, brachycephalic, and dolicocephalic facial form. Facial forms were made according to a facial index scale. Also, five different chin projections were morphed on each facial form. Questionnaire was used to ask 87 respondent (M: 48, F: 39, Age: 29.363.06, Residence: Seoul, South Korea) to choose the best profile and worst profile among the five different chin projections on three different facial forms. Statistical analysis (MANOVA) was performed with SPSS Ver.12.0. Conclusion: Subjects in different categories of facial forms have different views on esthetically pleasing chin position and facial form. A person with a brachycephalic facial form disfavors a retruded chin and a person with a dolicocephalic facial form prefers a retruded chin. Male respondents favor a slightly protruded chin, and female respondents favor a slightly retruded chin.
Introduction: Although accuracy assessments of multiple CAD/CAM surgical guides have been reported in multiple occasions, investigations regarding the use of such tools for immediate implant placements have not been reported to the best knowledge of the authors. Aim: To assess the accuracy of a single, immediate implant placements using Anatomage-Invivo5Ó CAD/ CAM surgical guides. Material and Methods: Records between 2012-2014 were gathered for patients who had immediately placed implants using Anatomage invivo 5 CAD/CAM surgical guides with both pre and post-op CBCT images on file. Prelaminary Results: Nine implants in nine patients were included in this study. The mean deviation at the crest was 0.67mm, the mean deviation at the apex was 0.88mm, and the mean deviation of the axis was 2.30 degrees. Discussion: Errors have been reported in the literature for all systems providing such tool.6,7,8 A metaregression analysis reported by Schneider et al.2 revealed a mean deviation at the entry point of 1.07mm, at the apex of 1.63, and an overall mean error in angulation of 5.261.2 Although this pilot study reports lower deviations, our sample was not large enough to compare to previous reports. In addition, this study was limited to tooth supported guides which have been shown to be the most accurate of all three types of supports (mucosa, bone, and tooth supported). Conclusion: Within the limitations of this study, Anatomage-Invivo5Ó CAD/CAM surgical guides can be reliable tools to accurately place implants immediately after extraction. References:
References: 1. Choi JY, Lee SH, Baek SH. Effects of Facial Hard Tissue Surgery on Facial Aesthetics: Changes in Facial Content and Frames. J Craniofac Surg 2012; 23:1683-1686. 2. Stella JP. Evaluation of the face for aesthetic surgery. Oral maxillofac surg clin north am 1996; 8:1-12.
e-60
1. Schneider D, Marquardt P, Zwahlen M, Jung RE. A systematic review on the accuracy and the clinical outcome of computer-guided template-based implant dentistry. Clin Oral Implants Res. 2009 08/ 02;20:73. 2. Lee CYS(1), Ganz SD(2), Wong N(3), Suzuki JB(4). Use of cone beam computed tomography and a laser intraoral scanner in virtual dental implant surgery: Part 1. Implant Dent. 2012 / 08 / 01 /;21(4):265-71.
AAOMS 2014
COSMETIC SURGERY
DENTAL IMPLANTS
POSTER 15
POSTER 16
Preferred Chin Projections and Facial Form According to a Person’s Facial Form in Korean
Accuracy Assessment of Single, Immediate Implant Placements using CAD/CAM Surgical Guides
T. Kim: Seoul National University Dental Hospital
N. Massoomi: University of the Pacific-Arthur A. Dugoni School of Dentistry, San Francisco Surgical Arts, Silicon Valley Surgical Arts, A. Nattestad F. Alzoubi
Introduction: One of the most important goals of orthognathic surgery and facial contouring surgery is enhancing facial beauty by improving facial form and outline. Pre-operatively, most facial analyzing methods evaluate the frontal side of the face separately from the lateral side of the face. Therefore, clinicians evaluate patient’s facial form, which is usually categorized into mesocephalic, brachycephalic, or dolicocephalic facial form. It is important to know that patients within each group of facial forms may have different thoughts on esthetic facial form and outline. Therefore, in order to set-up proper surgical treatment objectives to obtain an esthetic facial form and outline, clinicians need to know which group prefers which facial form. Subjects and Methods: Facial 3-Dimensional scan (Morpheus 3d Ver. 2.0, Morpheus Co., Ltd. Seoul Korea) was performed on a male and a female volunteer. The captured images were morphed into three different facial forms: mesocephalic, brachycephalic, and dolicocephalic facial form. Facial forms were made according to a facial index scale. Also, five different chin projections were morphed on each facial form. Questionnaire was used to ask 87 respondent (M: 48, F: 39, Age: 29.363.06, Residence: Seoul, South Korea) to choose the best profile and worst profile among the five different chin projections on three different facial forms. Statistical analysis (MANOVA) was performed with SPSS Ver.12.0. Conclusion: Subjects in different categories of facial forms have different views on esthetically pleasing chin position and facial form. A person with a brachycephalic facial form disfavors a retruded chin and a person with a dolicocephalic facial form prefers a retruded chin. Male respondents favor a slightly protruded chin, and female respondents favor a slightly retruded chin.
Introduction: Although accuracy assessments of multiple CAD/CAM surgical guides have been reported in multiple occasions, investigations regarding the use of such tools for immediate implant placements have not been reported to the best knowledge of the authors. Aim: To assess the accuracy of a single, immediate implant placements using Anatomage-Invivo5Ó CAD/ CAM surgical guides. Material and Methods: Records between 2012-2014 were gathered for patients who had immediately placed implants using Anatomage invivo 5 CAD/CAM surgical guides with both pre and post-op CBCT images on file. Prelaminary Results: Nine implants in nine patients were included in this study. The mean deviation at the crest was 0.67mm, the mean deviation at the apex was 0.88mm, and the mean deviation of the axis was 2.30 degrees. Discussion: Errors have been reported in the literature for all systems providing such tool.6,7,8 A metaregression analysis reported by Schneider et al.2 revealed a mean deviation at the entry point of 1.07mm, at the apex of 1.63, and an overall mean error in angulation of 5.261.2 Although this pilot study reports lower deviations, our sample was not large enough to compare to previous reports. In addition, this study was limited to tooth supported guides which have been shown to be the most accurate of all three types of supports (mucosa, bone, and tooth supported). Conclusion: Within the limitations of this study, Anatomage-Invivo5Ó CAD/CAM surgical guides can be reliable tools to accurately place implants immediately after extraction. References:
References: 1. Choi JY, Lee SH, Baek SH. Effects of Facial Hard Tissue Surgery on Facial Aesthetics: Changes in Facial Content and Frames. J Craniofac Surg 2012; 23:1683-1686. 2. Stella JP. Evaluation of the face for aesthetic surgery. Oral maxillofac surg clin north am 1996; 8:1-12.
e-60
1. Schneider D, Marquardt P, Zwahlen M, Jung RE. A systematic review on the accuracy and the clinical outcome of computer-guided template-based implant dentistry. Clin Oral Implants Res. 2009 08/ 02;20:73. 2. Lee CYS(1), Ganz SD(2), Wong N(3), Suzuki JB(4). Use of cone beam computed tomography and a laser intraoral scanner in virtual dental implant surgery: Part 1. Implant Dent. 2012 / 08 / 01 /;21(4):265-71.
AAOMS 2014