title: A new method to standardize CBCT for quantitative evaluation of alveolar ridge preservation in the mandible: a case report and review of the literature.
abstract: Cone-beam computerized tomography (CBCT) is an effective technique for assessment of changes to the alveolar ridge (AR). However, its accuracy and reliability could be improved by standardization of imaging positions to remain unchanged during measurements. In this study, an alveolar ridge preservation procedure was performed on a left third molar (38) socket by filling it with a radiotransparent synthetic bone graft, mineralized collagen (MC). Photographic, X-ray and CBCT images were captured before and 3, 6 and 12 months after surgery. A new method was developed to standardize CBCT for quantitative evaluation. Obtained CBCT images showed good comparability. The post-extraction alveolar width and height were both over 95% of the original values, but some resorption of the lingual bone wall (>50%) and inter-crestal bone (>30%). It is concluded that an effective positional standardization method was developed for CBCT assessment of AR dimensional changes in the posterior mandible. The use of MC in combination with a collagen membrane improved dimensional preservation of the AR.
authors.affiliation: Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210029, China, ; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210009, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Xia
authors.affiliation: Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210029, China.
authors.forename: Lizhe
authors.initials: L
authors.lastname: Xie
authors.affiliation: Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210029, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhou
authors.affiliation: Beijing Allgens Medical Science & Technology Co., Ltd, Beijing, 100176, China.
authors.forename: Tianxi
authors.initials: T
authors.lastname: Song
authors.affiliation: Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, 210029, China, ; Suzhou Key Laboratory of Biomaterials and Technologies & Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou, 215123, China.
authors.forename: Feimin
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Suzhou Key Laboratory of Biomaterials and Technologies & Collaborative Innovation Center of Suzhou Nano Science and Technology, Suzhou, 215123, China.
authors.forename: Ning
authors.initials: N
authors.lastname: Gu
keywords: CBCT; alveolar ridge preservation; quantitative evaluation
references.citation: Int J Oral Maxillofac Surg. 1990 Dec;19(6):341-5
references.pmid: 2128310
references.citation: Clin Oral Implants Res. 2009 Jan;20(1):1-6
references.pmid: 19126101
references.citation: J Periodontol. 2000 Jun;71(6):1015-23
references.pmid: 10914806
references.citation: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Nov;110(5):e24-36
references.pmid: 20955941
references.citation: Int J Oral Maxillofac Implants. 2003 May-Jun;18(3):440-6
references.pmid: 12814321
references.citation: J Clin Periodontol. 2003 Jun;30(6):486-95
references.pmid: 12795786
references.citation: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000 Mar;89(3):268-70
references.pmid: 10710448
references.citation: J Periodontol. 2005 Apr;76(4):605-13
references.pmid: 15857102
references.citation: J Clin Periodontol. 2009 Oct;36(10):898-904
references.pmid: 19723136
references.citation: J Biomed Mater Res. 2000 Jun 15;50(4):518-27
references.pmid: 10756310
references.citation: J Biomater Appl. 2014 Jul;29(1):59-71
references.pmid: 24287982
references.citation: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Dec;112(6):e26-33
references.pmid: 21856192
references.citation: Clin Implant Dent Relat Res. 2011 Mar;13(1):34-45
references.pmid: 19681930
references.citation: J Clin Periodontol. 2005 May;32(5):435-40
references.pmid: 15842256
references.citation: Dent Res J (Isfahan). 2012 Dec;9(Suppl 1):S57-62
references.pmid: 23814563
references.citation: Clin Implant Dent Relat Res. 2009 Sep;11(3):246-55
references.pmid: 18783419
references.citation: Clin Oral Implants Res. 2010 Jul;21(7):688-98
references.pmid: 20636724
references.citation: Int J Periodontics Restorative Dent. 2006 Feb;26(1):19-29
references.pmid: 16515093
references.citation: Dentomaxillofac Radiol. 2004 Sep;33(5):291-4
references.pmid: 15585804
references.citation: J Clin Periodontol. 2005 Feb;32(2):212-8
references.pmid: 15691354
references.citation: J Clin Periodontol. 2012 Sep;39(9):887-94
references.pmid: 22708823
references.citation: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2002 Oct;94(4):413-9
references.pmid: 12374912
references.citation: Angle Orthod. 2009 Jan;79(1):150-7
references.pmid: 19123719
references.citation: Clin Oral Implants Res. 2003 Oct;14(5):651-8
references.pmid: 12969370
references.citation: Clin Oral Implants Res. 2008 Dec;19(12):1219-25
references.pmid: 19040436
references.citation: Clin Oral Implants Res. 2009 May;20(5):433-40
references.pmid: 19522974
references.citation: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000 Nov;90(5):581-6
references.pmid: 11077380
references.citation: Clin Oral Investig. 2012 Apr;16(2):581-90
references.pmid: 21369794
references.citation: Dentomaxillofac Radiol. 2012 May;41(4):328-39
references.pmid: 22241879
references.citation: Clin Oral Implants Res. 2013 Mar;24(3):255-61
references.pmid: 22882634
references.citation: J Clin Periodontol. 2013 Apr;40(4):387-95
references.pmid: 23432761
references.citation: Int J Periodontics Restorative Dent. 2003 Aug;23 (4):313-23
references.pmid: 12956475
references.citation: J Periodontol. 2002 Jan;73(1):94-102
references.pmid: 11846205