Influence of different implant collar designs on marginal bone resorption: a Meta-analysis

doi:10.12337/zgkqzzxzz.2025.06.012

Abstract

Abstract: Objective To systematically evaluate the effect of smooth and rough implant collars on marginal bone resorption. Methods A systematic search was conducted in Embase, PubMed, CNKI, and Wanfang databases from inception to June 2024. Two independent reviewers screened, analyzed, and assessed the relevant literature. Meta-analysis was performed using RevMan 5.4 and Stata 15.0. Results Seven studies, involving 702 implants, were included. The meta-analysis showed that marginal bone resorption in the rough collar group was significantly lower than in the smooth collar group [MD=0.34,95% CI (0.08,0.61),P<0.05]. Subgroup analysis showed that the advantage of the rough collar in preserving marginal bone was more significant when the implant placement duration was less than 12 months. Conclusion Based on the available data, the rough implant collar is more favorable for marginal bone preservation compared to the smooth collar.

Key words: Smooth collar, Rough collar, Dental implants, Marginal bone resorption, Meta-analysis

Wan Ke, Hao Junjiang, Su Hanqi, Su Yucheng. Influence of different implant collar designs on marginal bone resorption: a Meta-analysis[J]. Chinese Journal of Oral Implantology, 2025, 30(3): 275-280.

References

[1] Moraschini V, Poubel LA, Ferreira VF, et al.Evaluation of survival and success rates of dental implants reported in longitudinal studies with a follow-up period of at least 10 years: a systematic review[J]. Int J Oral Maxillofac Surg, 2015, 44(3):377-388. DOI: 10.1016/j.ijom.2014.10.023.
[2] Pjetursson BE, Thoma D, Jung R, et al.A systematic review of the survival and complication rates of implant-supported fixed dental prostheses (FDPs) after a mean observation period of at least 5 years[J]. Clin Oral Implants Res, 2012, 23(Suppl 6):S22-S38. DOI: 10.1111/j.1600-0501.2012.02546.x.
[3] Göthberg C, Gröndahl K, Omar O, et al.Bone and soft tissue outcomes, risk factors, and complications of implant-supported prostheses: 5-years RCT with different abutment types and loading protocols[J]. Clin Implant Dent Relat Res, 2018, 20(3):313-321. DOI: 10.1111/cid.12587.
[4] 周炜, 宋应亮, 李德华, 等. 种植体骨结合稳定性测量及相关因素分析[J]. 实用口腔医学杂志, 2006, 22(6):803-806. DOI: 10.3969/j.issn.1001-3733.2006.06.017.
Zhou W,Song YL, Li DH, et al.The stability of osseointegrated implants and the relative factors[J]. J Pract Stomatol,2006,22(6):803-806. DOI: 10.3969/j.issn.1001-3733.2006.06.017.
[5] Baffone GM, Botticelli D, Pereira FP, et al.Influence of buccal bony crest width on marginal dimensions of peri-implant hard and soft tissues after implant installation. An experimental study in dogs[J]. Clin Oral Implants Res,2013,24(3):250-254. DOI: 10.1111/j.1600-0501.2012.02512.x.
[6] Bengazi F, Lang NP, Caroprese M, et al.Dimensional changes in soft tissues around dental implants following free gingival grafting: an experimental study in dogs[J]. Clin Oral Implants Res, 2015, 26(2):176-182. DOI: 10.1111/clr.12280.
[7] 王蕾, 刘延山, 柏娜, 等. 平台转移技术对种植体周围组织影响的Meta分析[J]. 青岛大学学报(医学版), 2019, 55(2):206-210. DOI: 10.11712/jms201902019.
Wang L, Liu YS, Bai N, et al.Effect of platform switching on peri-implant tissue: a meta-analysis[J]. J Qingdao Univ (Med Sci) , 2019, 55(2):206-210. DOI: 10.11712/jms201902019.
[8] Pettersson P, Sennerby L.A 5-year retrospective study on replace select tapered dental implants[J]. Clin Implant Dent Relat Res, 2015, 17(2):286-295. DOI: 10.1111/cid.12105.
[9] Hsu YT, Chan HL, Rudek I, et al.Comparison of clinical and radiographic outcomes of platform-switched implants with a rough collar and platform-matched implants with a smooth collar: a 1-year randomized clinical trial[J]. Int J Oral Maxillofac Implants, 2016, 31(2):382-390. DOI: 10.11607/jomi.4189.
[10] Oh TJ, Yoon J, Misch CE, et al.The causes of early implant bone loss: myth or science?[J]. J Periodontol, 2002, 73(3):322-333. DOI: 10.1902/jop.2002.73.3.322.
[11] 赖漪娆, 史俊宇, 赖红昌. 种植体光滑颈圈的临床应用[J]. 口腔医学, 2021, 41(8):746-750. DOI: 10.13591/j.cnki.kqyx.2021.08.015.
Lai LR, Shi JY, Lai HC.Clinical application of smooth-collared implant[J].Stomatology,2021, 41(8):746-750. DOI: 10.13591/j.cnki.kqyx.2021.08.015.
[12] Esposito M, Felice P, Barausse C, et al.Immediately loaded machined versus rough surface dental implants in edentulous jaws: one-year postloading results of a pilot randomised controlled trial[J]. Eur J Oral Implantol, 2015, 8(4):387-396.
[13] Rothamel D, Heinz M, Ferrari D, et al.Impact of machined versus structured implant shoulder designs on crestal bone level changes: a randomized, controlled, multicenter study[J]. Int J Implant Dent, 2022, 8(1):31. DOI: 10.1186/s40729-022-00432-4.
[14] Patil YB, Asopa SJ, Deepa, et al. Influence of implant neck design on crestal bone loss: a comparative study[J]. Niger J Surg, 2020, 26(1):22-27. DOI: 10.4103/njs.NJS_28_19.
[15] Randall EF, Abou-Arraj RV, Geurs N, et al.The effect of dental implant collar cesign on crestal bone loss at 1 year after implant placement[J]. Int J Periodontics Restorative Dent, 2019, 39(2):165-173. DOI: 10.11607/prd.3516.
[16] Mendonça JA, Senna PM, Francischone CE, et al.Retrospective evaluation of the influence of the collar surface topography on peri-implant bone preservation[J]. Int J Oral Maxillofac Implants, 2017, 32(4):858-863. DOI: 10.11607/jomi.4094.
[17] den Hartog L, Meijer H, Vissink A, et al. Anterior single implants with different neck designs: 5 year results of a randomized clinical trial[J]. Clin Implant Dent Relat Res, 2017, 19(4):717-724. DOI: 10.1111/cid.12498.
[18] Goswami MM.Comparison of crestal bone loss along two implant crest module designs[J]. Med J Armed Forces India, 2009, 65(4):319-322. DOI: 10.1016/S0377-1237(09)80091-9.
[19] Bratu EA, Tandlich M, Shapira L.A rough surface implant neck with microthreads reduces the amount of marginal bone loss: a prospective clinical study[J]. Clin Oral Implants Res, 2009, 20(8):827-832. DOI: 10.1111/j.1600-0501.2009.01730.x.
[20] Chen W, Zhi M, Feng Z, et al.Sustained co-delivery of ibuprofen and basic fibroblast growth factor by thermosensitive nanoparticle hydrogel as early local treatment of peri-implantitis[J]. Int J Nanomedicine, 2019, 14:1347-1358. DOI: 10.2147/IJN.S190781.
[21] Sadrimanesh R, Siadat H, Sadr-Eshkevari P, et al.Alveolar bone stress around implants with different abutment angulation: an FE-analysis of anterior maxilla[J]. Implant Dent, 2012, 21(3):196-201. DOI: 10.1097/ID.0b013e31824c302e.
[22] Pierrisnard L, Renouard F, Renault P, et al.Influence of implant length and bicortical anchorage on implant stress distribution[J]. Clin Implant Dent Relat Res, 2003, 5(4):254-262. DOI: 10.1111/j.1708-8208.2003.tb00208.x.
[23] Novaes AB Jr, Papalexiou V, Muglia V, et al.Influence of interimplant distance on gingival papilla formation and bone resorption: clinical-radiographic study in dogs[J]. Int J Oral Maxillofac Implants, 2006, 21(1):45-51.
[24] Shalabi MM, Wolke JG, Jansen JA.The effects of implant surface roughness and surgical technique on implant fixation in an in vitro model[J]. Clin Oral Implants Res, 2006, 17(2):172-178. DOI: 10.1111/j.1600-0501.2005.01202.x.
[25] Wennerberg A, Albrektsson T.Effects of titanium surface topography on bone integration: a systematic review[J]. Clin Oral Implants Res, 2009,20(Suppl 4):S172-S184. DOI: 10.1111/j.1600-0501.2009.01775.x.
[26] Hansson S.The implant neck: smooth or provided with retention elements. A biomechanical approach[J]. Clin Oral Implants Res, 1999,10(5):394-405. DOI: 10.1034/j.1600-0501.1999.100506.x.
[27] Xu Y, Li H, Wu J, et al.Polydopamine-induced hydroxyapatite coating facilitates hydroxyapatite/ polyamide 66 implant osteogenesis: an in vitro and in vivo evaluation[J]. Int J Nanomedicine, 2018, 13:8179-8193. DOI: 10.2147/IJN.S181137.
[28] Javed F, Ahmed HB, Crespi R, et al.Role of primary stability for successful osseointegration of dental implants: factors of influence and evaluation[J]. Interv Med Appl Sci, 2013, 5(4):162-167. DOI: 10.1556/IMAS.5.2013.4.3.
[29] Kulkarni M, Mazare A, Gongadze E, et al.Titanium nanostructures for biomedical applications[J]. Nanotechnology, 2015, 26(6):062002. DOI: 10.1088/0957-4484/26/6/062002.
[30] Minagar S, Wang J, Berndt CC, et al.Cell response of anodized nanotubes on titanium and titanium alloys[J]. J Biomed Mater Res A, 2013, 101(9):2726-2739. DOI: 10.1002/jbm.a.34575.
[31] Refai AK, Textor M, Brunette DM, et al.Effect of titanium surface topography on macrophage activation and secretion of proinflammatory cytokines and chemokines[J]. J Biomed Mater Res A, 2004, 70(2):194-205. DOI: 10.1002/jbm.a.30075.
[32] Schwarz F, Alcoforado G, Nelson K, et al.Impact of implant-abutment connection, positioning of the machined collar/microgap, and platform switching on crestal bone level changes. Camlog foundation consensus report[J]. Clin Oral Implants Res, 2014,25(11):1301-1303. DOI: 10.1111/clr.12269.
[33] Tomar S, Saxena D, Kaur N. Marginal bone loss around implants with platform switching and platform matched connection: a systematic review[J]. J Prosthet Dent, 2023: S0022-3913(23)00622-00624 [pii]. DOI: 10.1016/j.prosdent.2023.09.009.