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BMC Oral Health
Published in: BMC Oral Health 1/2021

Open Access 01-12-2021 | Digital Volume Tomography | Research

Analysis of the sagittal root angle and its correlation with hard and soft tissue indices in anterior teeth for immediate implant evaluation: a retrospective study

Authors: Mengru Shi, Xiaoshuang Wang, Peisheng Zeng, Haiwen Liu, Zhuohong Gong, Yixiong Lin, Zhipeng Li, Zetao Chen, Zhuofan Chen

Published in: BMC Oral Health | Issue 1/2021

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Abstract

Background

To assess the root angle characteristics of maxillary incisors, and to analyze the relationship between the root angle and other implant-related anatomical indices to use the sagittal root angle as an index for immediate implant evaluation and design.

Methods

A random sample consisting of 400 cone-beam computed tomography (CBCT) images and 65 maxillary plaster models were selected for the present study. CBCT and stereolithography (STL) scan images were imported as DICOM files into coDiagnostiX software for matching the hard and soft tissue. The angle between the long axis of the anterior tooth and the corresponding alveolar bone and implant-related hard and soft tissue indices were measured in the sagittal section. Descriptive statistics, frequency analysis, multi-level comparisons, and correlation analyses were performed.

Results

The average sagittal root angles were 15° at the central incisor and 19° at the lateral incisor. The root angle in males was significantly larger than that in females, and increased with age. The largest angle, 22.35°, was found in the lateral incisors of the oldest (> 50 years old) male group. The root angle was found to correlate with coronal buccal bone thickness, coronal palatal bone thickness, apical buccal bone thickness, palatal bone thickness, and the below apex bone thickness.

Conclusions

The sagittal root angle could reflect the distribution of other implant-related anatomical indices, which may provide additional reference for the evaluation of immediate implant placement.
Appendix
Available only for authorised users
Literature
1.
Blanco J, Carral C, Argibay O, et al. Implant placement in fresh extraction sockets. Periodontology 2000. 2019;79(1):151–67.PubMedCrossRef
2.
Chappuis V, Araújo M, Buser DJP. Clinical relevance of dimensional bone and soft tissue alterations post-extraction in esthetic sites. Periodontology 2000. 2017;2017(1):73–83.CrossRef
3.
Kan J, Rungcharassaeng K, Lozada JJP, et al. Immediate implant placement and provisionalization of maxillary anterior single implants. Periodontology 2000. 2014;18(1):119–31.
4.
Wang HM, Shen JW, Yu MF, et al. Analysis of facial bone wall dimensions and sagittal root position in the maxillary esthetic zone: a retrospective study using cone beam computed tomography. Int J Oral Maxillofac Implants. 2014;29(5):1123–9.PubMedCrossRef
5.
Kan J, Roe P, Rungcharassaeng K, et al. Classification of sagittal root position in relation to the anterior maxillary osseous housing for immediate implant placement: a cone beam computed tomography study. Int J Oral Maxillofac Implants. 2011;26(4):873–6.PubMed
6.
Kim JH, Lee JG, Han DH, et al. Morphometric analysis of the anterior region of the maxillary bone for immediate implant placement using micro-CT. Clin Anat. 2011;24(4):66.CrossRef
7.
Garber DAJCCED. Restoration-driven implant placement with restoration-generated site development. Compend Contin Educ Dent. 1995;16(8):796–8.PubMed
8.
Buser D, Belser MC, Dent PJ, et al. Optimizing esthetics for implant restorations in the anterior maxilla: anatomic and surgical considerations. Int J Oral Max Impl. 2003;19(Suppl(1)):43.
9.
Becker W, Sennerby L, Bedrossian E, et al. Implant stability measurements for implants placed at the time of extraction: a cohort, prospective clinical trial. J Periodontol. 2005;76(3):391–7.PubMedCrossRef
10.
Santos J, Duro A, Felino A, et al. Analysis of the buccal bone plate, root inclination and alveolar bone dimensions in the Jawbone. A descriptive study using cone-beam computed tomography. J Oral Maxil Surg. 2019;10(2):66.
11.
Nahass HE, Naiem SNJCOIR. Analysis of the dimensions of the labial bone wall in the anterior maxilla: a cone-beam computed tomography study. Clin Oral Implan Res. 2015;26(4):57–61.CrossRef
12.
Rojo-Sanchis J, Soto-Pealoza D, Pearrocha-Oltra D, et al. Facial alveolar bone thickness and modifying factors of anterior maxillary teeth: a systematic review and meta-analysis of cone-beam computed tomography studies. BMC Oral Health. 2020;21(1):66.
13.
Tian YL, Liu F, Sun HJ, et al. Alveolar bone thickness around maxillary central incisors of different inclination assessed with cone-beam computed tomography. Korean J Orthodont. 2015;45(5):245–55.CrossRef
14.
Do TA, Shen Y, Fuh L, et al. Clinical assessment of the palatal alveolar bone thickness and its correlation with the buccolingual angulation of maxillary incisors for immediate implant placement. Clin Implant Dent Relat Res. 2019;21:66.CrossRef
15.
Zhang S, Shi X, Liu HJID. Angulations of anterior teeth with reference to the alveolar bone measured by CBCT in a Chinese population. Implant Dent. 2015;24(4):397–401.PubMed
16.
Joseph and Association C J J o t A S. Sample Size Calculations In Clinical Research (2nd Ed.). J Am Stat Assoc. 2009.
17.
López-Jarana P, Díaz-Castro C, Falcão A, et al. Thickness of the buccal bone wall and root angulation in the maxilla and mandible: an approach to cone beam computed tomography. BMC Oral Health. 2018;18(1):194.PubMedPubMedCentralCrossRef
18.
Braut V, Bornstein MM, Belser U, et al. Thickness of the anterior maxillary facial bone wall-a retrospective radiographic study using cone beam computed tomography. Int J Periodont Restorative Dent. 2011;31(2):125–31.
19.
Derksen W, Wismeijer D, Flügge T, et al. The accuracy of computer-guided implant surgery with tooth-supported, digitally designed drill guides based on CBCT and intraoral scanning. A prospective cohort study. Clin Implant Dent Relat Res. 2019;10(1):1005–15.
20.
Zhang W, Skrypczak A, Weltman RJ. Anterior maxilla alveolar ridge dimension and morphology measurement by cone beam computerized tomography (CBCT) for immediate implant treatment planning. BMC Oral Health. 2015;15(1):1–8.CrossRef
21.
Retina MFJ. Designing clinical research: an epidemiologic approach. Retina. 1990;10(4):1532–43.
22.
Zekry A, Wang R, Chau AC, Lang NP. Facial alveolar bone wall width–a cone-beam computed tomography study in Asians. Clin Oral Implants Res. 2013;25(2):194–206.PubMedCrossRef
23.
Koh KK, Tan JS, Nambiar P, Ibrahim N, Mutalik S, Asif MK. Age estimation from structural changes of teeth and buccal alveolar bone level. J Forensic Legal Med. 2017;48:15–21.CrossRef
24.
Streckfus CF, Parsell DE, Streckfus JE, Pennington W, Johnson RB. Relationship between oral alveolar bone loss and aging among African–American and caucasian individuals. Gerontology. 1999;45(2):110–4.PubMedCrossRef
25.
Borzabadi-Farahani A. Orthodontic considerations in restorative management of hypodontia patients with endosseous implants. J Oral Implantol. 2012;38(6):779–91.PubMedCrossRef
26.
Spray JR, Black CG, Morris HF, et al. The influence of bone thickness on facial marginal bone response: stage 1 placement through stage 2 uncovering. Ann Periodontol. 2000;5(1):66.CrossRef
27.
Chappuis V, Engel O, Reyes M, et al. Ridge alterations post-extraction in the esthetic zone: a 3D analysis with CBCT. J Dent Res. 2013;92(12):66.
28.
Buser D, Chappuis V, Belser UC, et al. Implant placement post extraction in esthetic single tooth sites: when immediate, when early, when late? Periodontology 2000. 2017;73(1):84.PubMedCrossRef
29.
Bhola M, Neely AL, Kolhatkar S. Immediate implant placement: clinical decisions, advantages, and disadvantages. J Prosthodont Implant Esthetic Reconstruct Dent. 2008;17(7):576–81.
30.
Leite AF, Gerven AV, Willems H, et al. Artificial intelligence-driven novel tool for tooth detection and segmentation on panoramic radiographs. Clin Oral Invest. 2021;25(9):1–11.
31.
Rawat W, Wang ZJNC. Deep convolutional neural networks for image classification: a comprehensive review. Neural Comput. 2017;7(1):56–68.
32.
Meloni SM, Tallarico M, Pisano M, Xhanari E, Canullo L. Immediate loading of fixed complete denture prosthesis supported by 4–8 implants placed using guided surgery: a 5-year prospective study on 66 patients with 356 implants. Clin Implant Dent Rel Res. 2016;19(1):195–206.CrossRef
33.
Tallarico M, Kim YJ, Cocchi F, et al. Accuracy of newly developed sleeve-designed templates for insertion of dental implants: A prospective multicenters clinical trial. Clin Implant Dent Relat Res. 2018;21(1):108–13.PubMedCrossRef
34.
Schneider D, Marquardt P, Zwahlen M, et al. A systematic review on the accuracy and the clinical outcome of computer-guided template-based implant dentistry. Clin Oral Implan Res. 2010;20(Suppl 4):73–86.
Metadata
Title
Analysis of the sagittal root angle and its correlation with hard and soft tissue indices in anterior teeth for immediate implant evaluation: a retrospective study
Authors
Mengru Shi
Xiaoshuang Wang
Peisheng Zeng
Haiwen Liu
Zhuohong Gong
Yixiong Lin
Zhipeng Li
Zetao Chen
Zhuofan Chen
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Oral Health / Issue 1/2021
Electronic ISSN: 1472-6831
DOI
https://doi.org/10.1186/s12903-021-01848-x

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