A Retrospective Study on Efficacy of Short Implants (≤6 mm) in Atrophic Posterior Tooth Area for 5-7 Years

doi:10.13701/j.cnki.kqyxyj.2021.01.013

Abstract

Abstract: Objective: To evaluate the long-term clinical efficacy of short implants (≤6 mm) in the posterior teeth. Methods: From January 2009 to January 2012, 17 patients in the Department of Stomatology, the Fourth Affiliated Hospital of Nanchang University were implanted with 33 Bicon implants (implant length≤6 mm). The observation period was 60-84 months. The marginal bone resorption, implant retention rate, and complications were recorded. Results: During the observation period, one of 33 implants fell off, the implant retention rate was 97.0%, and the bone resorption levels of the implants in the near and far of the implant were (-0.74±0.05) mm and (0.05±0.07) mm within 60 to 84 months after the restoration was completed. There was no significant difference in the bone height at the proximal and distal edges of the implant before and immediately after restoration (P>0.05). Conclusion: In the observation period of 5-7 years, the short implants (≤6 mm) are applied to the posterior teeth area with insufficient bone mass, and their survival rates and bone resorption levels are not different from those of conventional implants, and good long-term effects can be obtained.

Key words: short mplunts, posterior teeth area, Bicon implants, survival rate, marginal bone changes

HU Changqi, WEI Zhenyu, WEI Hongwu, XIA Xun, HUANG Jiangqin, GONG Jinmei, GUO Shuigen. A Retrospective Study on Efficacy of Short Implants (≤6 mm) in Atrophic Posterior Tooth Area for 5-7 Years[J]. Journal of Oral Science Research, 2021, 37(1): 58-62.

References

[1] 钟志华,唐祎,施斌.Bicon植体联合上颌窦内提升术用于上后牙种植[J].口腔医学研究,2017,33(7):787-789.
[2] Malchiodi L, Caricasulo R, Cucchi A, et al. Evaluation of ultrashort and longer implants with microrough surfaces: results of a 24- to 36-month prospective study [J]. Int J Oral Maxillofac Implants, 2017, 32(1):171-179.
[3] Maló P, de Araújo Nobre M, et al. Short implants placed one-stage in maxillae and mandibles: a retrospective clinical study with 1 to 9 years of follow-up [J]. Clin Implant Dent Relat Res, 2010, 9(1):15-21.
[4] Friberg B, Gröndahl K, Lekholm U, et al. Long-term follow-up of severely atrophic edentulous mandibles reconstructed with short Brånemark implants [J]. Clin Implant Dent Relat Res, 2000, 2(4):184-189.
[5] 黄娜,李平,李安,等.超短种植体在上颌后牙区骨量严重不足中的应用[J].中国组织工程研究, 2015, 19(30):4810-4814.
[6] 冯培明,牛光良.短种植体和超短种植体在后牙区种植3年临床观察[J].口腔颌面修复学杂志, 2014, 15(3):137-139.
[7] Felice P,Karaban M,Pistilli R, et al. Minimally invasive rehabilitation of a severely atrophic and fully edentulous maxilla using 4-mm-ultrashort implants: A case report with 1-year follow-up [J]. Oral and Maxillofacial Surgery Cases, 2020,6(3):100176.
[8] Lombardo G, Pighi J, Marincola M, et al. Cumulative success rate of short and ultrashort implants supporting single crowns in the posterior maxilla: a 3-year retrospective study [J]. Int J Dent, 2017, 2017:8434281.
[9] Felice P, Karaban M, Pistilli R, et al. Minimally invasive rehabilitation of a severely atrophic and fully edentulous maxilla using 4-mm-ultrashort implants: A case report with 1-year follow-up [J]. Oral Maxillofac Surg Cases, 2020, 6(3):100176.
[10] Jung RE, Al-Nawas B, Araujo M,et al. Group 1 ITI Consensus Report: The influence of implant length and design and medications on clinical and patient-reported outcomes[J]. Clin Oral Implants Res, 2018, 29 Suppl 16:69-77.
[11] Vazouras K, de Souza AB, Gholami H, et al. Effect of time in function on the predictability of short dental implants (≤6 mm): A meta-analysis [J]. J Oral Rehabil, 2020, 47(3):403-415.
[12] Ravidà A, Wang IC, Barootchi S, et al. Meta-analysis of randomized clinical trials comparing clinical and patient-reported outcomes between extra-short (≤6 mm) and longer (≥10 mm) implants [J]. J Clin Periodontol, 2019, 46(1):118-142.
[13] Botticelli D, Renzi A, Lindhe J, et al. Implants in fresh extraction sockets: a prospective 5-year follow-up clinical study [J]. Clin Oral Implants Res, 2010, 19(12):1226-1232.
[14] Romero-Millán JJ, Aizcorbe-Vicente J, Peñarrocha-Diago M, et al. Implants in the posterior maxilla: open sinus lift versus conventional implant placement. A systematic review [J]. Int J Oral Maxillofac Implants, 2019, 34(4):e65-e76.
[15] Lemos CA, Ferro-Alves ML, Okamoto R, et al. Short dental implants versus standard dental implants placed in the posterior jaws: A systematic review and meta-analysis [J]. J Dent, 2016, 47:8-17.
[16] Wang Y, Zhang XJ, Yin CR, et al. Long-term effect of intruded upper molars and dental implant restoration in 24 patients [J]. Shanghai Kou Qiang Yi Xue, 2018, 27(4):430-432.
[17] Lai HC, Si MS, Zhuang LF, et al. Long-term outcomes of short dental implants supporting single crowns in posterior region: a clinical retrospective study of 5-10years [J]. Clin Oral Implants Res, 2013, 24(2):230-237.
[18] Rossi F, Botticelli D, Cesaretti G, et al. Use of short implants (6 mm) in a single-tooth replacement: a 5-year follow-up prospective randomized controlled multicenter clinical study [J]. Clin Oral Implants Res, 2016, 27(4):458-464.
[19] Demenko V, Linetskiy I, Nesvit K, et al. Importance of diameter-to-length ratio in selecting dental implants: a methodological finite element study [J]. Comput Methods Biomech Biomed Engin, 2014, 17(4):443-449.
[20] Pabst AM, Walter C, Ehbauer S, et al. Analysis of implant-failure predictors in the posterior maxilla: A retrospective study of 1395 implants [J]. J Craniomaxillofac Surg, 2015, 43(3):414-420.
[21] Urdaneta RA, Daher S, Lery J, et al. Factors associated with crestal bone gain on single-tooth locking-taper implants:the effect of nonsteroidal anti-inflammatory drugs [J]. Int J Oral Maxillofac Implants, 2011,26(5):1063- 1078.
[22] 李振,聂文忠,黄远亮.不同直径种植体与天然牙联合支持固定桥的应力分析[J].口腔颌面外科杂志,2012,22(2):105-109.
[23] 林璇,李阳,林臻彦,等.Ankylos种植体中央螺丝杆折断取出1例[J].中国口腔种植学杂志,2016,21(1):30-31.