The effect of oral implant-abutment microgaps closed by sealing materials on implant-supported prosthesis, surrounding bone

doi:10.19438/j.cjoms.2022.02.003

Abstract

Abstract: PURPOSE: To investigate the stress and stress distribution generated on each component of dental implant system and surrounding bone when using sealing materials to close the implant-abutment microgaps. METHODS: A finite element model of partial mandible without first molar was set up, and a dental implant (Straumann) was placed. The implant system models were established with different sizes of implant-abutment microgaps (5, 6, 7, 8, 9 μm), which were closed by sealing materials. The loading forces were 100 N axially (0°) and 100 N obliquely (45°) respectively on occlusive surface. Finite element analysis was performed by computer. RESULTS: The stress on the whole prosthesis and the abutment was almost unchanged whether the implant-abutment microgap was filled or not. When the microgap was closed, the equivalent stress on the implant decreased slightly, and the equivalent stress on the surrounding bone decreased significantly. The stress on the whole prosthesis increased with the increase of the microgaps. CONCLUSIONS: Using sealing materials to close the implant-abutment microgaps could effectively reduce the stress on the implant and mandible, which may have some practical value.

Key words: Dental implant, Dental abutment, Microgap, Finite element analysis, Equivalent stress

CLC Number:

R782.1

MA Jie, WANG Qi-shuai, ZHANG Bing-hua, CHEN Tian-tian, CAI Guo-ping, SONG Tao. The effect of oral implant-abutment microgaps closed by sealing materials on implant-supported prosthesis, surrounding bone[J]. China Journal of Oral and Maxillofacial Surgery, 2022, 20(2): 117-122.

References

[1] Sailer I, Philipp A, Zembic A, et al.A systematic review of the performance of ceramic and metal implant abutments supporting fixed implant reconstructions[J]. Clin Oral Implants Res, 2009, 20(Suppl 4): 4-31.
[2] Baixe S, Fauxpoint G, Arntz Y, et al.Microgap between zirconoia abutments and titanium implant[J]. Int J Oral Maxillofac Implants, 2010, 25(3): 455-460.
[3] Solá-Ruíz MF, Selva-Otaolaurruchi E, Senent-Vicente G, et al.Accuracy combining different brands of implants and abutments[J]. Med Oral Patol Oral Cir Bucal, 2013, 18(2): e332-e336.
[4] de Morais Alves da Cunha T, de Araújo RP, da Rocha PV, et al. Comparison of fit accuracy between Procera? custom abutments and three implant systems[J]. Clin Implant Dent Relat Res, 2012, 14(6): 890-895.
[5] Coelho AL, Suzuki M, Dibart S, et al.Cross-sectional analysis of the implant-abutment interface[J]. J Oral Rehabil, 2007, 34(7): 508-516.
[6] Tsuge T, Hagiwara Y, Matsumura H, et al.Marginal fit and microgaps of implant-abutment interface with internal anti-rotation configuration[J]. Dent Mater J, 2008, 27(1): 29-34.
[7] 苟敏, 蔡潇潇. 种植体-基台微间隙对种植体颈部周围骨的影响[J]. 国际口腔医学杂志, 2015, 42(6): 733-738.
[8] Mencio F, Papi P, Di CS, et al.Salivary bacterial leakage into implant-abutment connections: preliminary results of an in vitro study[J]. Eur Rev Med Pharmacol Sci, 2016, 20(12): 2476-2483.
[9] Alves DCC, de Carvalho PSP, Elias CN, et al. In vitro analysis of the microbiological sealing of tapered implants after mechanical cycling[J]. Clin Oral Investig, 2016, 20(9): 2437-2445.
[10] Zembic A, Kim S, Zwahlen M, et al.Systematic review of the survival rate and incidence of biologic, technical, and esthetic complications of single implant abutments supporting fixed prostheses[J]. Int J Oral Maxillofac Implants, 2014, 29(Suppl): 99-116.
[11] Sahin C, Ayyildiz S.Correlation between microleakage and screw loosening at implant-abutment connection[J]. J Adv Prosthodont, 2014, 6(1): 35-38.
[12] Freitas-Júnior AC, Almeida EO, Bonfante EA, et al.Reliability and failure modes of internal conical dental implant connections[J]. Clin Oral 1mplants Res, 2013, 24(2): 197-202.
[13] Podhorsky A, Biscoping S, Rehmann P, et al.Transfer of bacteria into the internal cavity of dental implants after application of disinfectant or sealant agents in vitro[J]. Int J Oral Maxillofac Implants, 2016, 31(3): 563-570.
[14] Nayak AG, Fernandes A, Kulkarni R, et al.Efficacy of antibacterial sealing gel and O-ring to prevent microleakage at the implant abutment interface: an in vitro study[J]. J Oral Implantol, 2014, 40(1): 11-14.
[15] Duarte AR, Rossetti PH, Rossetti LM, et al. In vitro sealing ability of two materials at five different implant-abutment surfaces[J]. J Periodontol, 2006, 77(11): 1828-1832.
[16] 闫嘉群, 朱焱, 王太和, 等. 不同粘接剂对中切牙全瓷冠应力分布的影响[J]. 口腔医学研究, 2016, 32(12): 1296-1298.
[17] 王维丽, 马洁, 李鑫, 等. 颌骨骨质类型对种植体骨界面应力分布影响的三维有限元分析[J]. 河北医药, 2017, 39(12): 1771-1775.
[18] Smojver I, Vuletic M, Gerbl D, et al.Evaluation of antimicrobial efficacy and permeability of various sealing materials at the implant-abutment interface-a pilot in vitro study[J]. Materials (Basel), 2021, 14(2): 385-396.
[19] Biscoping S, Ruttmann E, Rehmann P, et al.Do sealing materials influence superstructure attachment in implants?[J]. Int J Prosthodont, 2018, 31(2): 163-165.
[20] Paolantonio M, Perinetti G, D'Ercole S, et al. Internal decontamination of dental implants: an in vivo randomized microbiologic 6-month trial on the effects of a chlorhexidine gel[J]. J Periodontol, 2008, 79(8): 1419-1425.
[21] Romanos GE, Biltucci MT, Kokaras A, et al.Bacterial composition at the implant-abutment connection under loading in vivo[J]. Clin Implant Dent Relat Res, 2016, 18(1): 138-145.
[22] 周强强, 廖红兵. 种植单冠螺丝固位的机械原理与松动原因的研究进展[J].口腔医学研究, 2019, 35(2): 122-124.