Journal of Prevention and Treatment for Stomatological Diseases ›› 2018, Vol. 26 ›› Issue (7): 415-421.doi: 10.12016/j.issn.2096-1456.2018.07.002

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Technical complications associated with implant prostheses in terms of reason, prevention, and management

Bin SHI(), Tao WU   

  1. Department of Implantology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
  • Received:2018-01-31 Revised:2018-04-01 Online:2018-07-20 Published:2018-08-30

Abstract:

Technical complications associated with implant prostheses include abutment or screw loosening, abutment or screw fractures, implant fractures, fracture of the veneering material and loss or misfitting of retention equipment. In this review, implant prostheses are classified as implant-supported single crowns (SCs), implant-supported fixed dental prostheses (FDPs) or implant-supported fixed complete dentures (FCDs). We evaluated the incidence of technical complications based on the clinical literature published after 2000. Then, we analyzed the reason, prevention and clinical management of abutment or screw loosening, abutment or screw fractures, implant fractures, fracture of the veneering material and loss or misfitting of retention, to reduce the incidence of complications and provide guidance for future oral implant treatment.

Key words: Implant prosthesis, Technical complication, Incidence, Abutment, Fracture of the veneering material

CLC Number: 

  • R783.4

Table 1

Incidence of technical complications in implant prostheses"

并发症 SCs FDPs FCDs
每年发生率
(95%CI
5年发生率
(95%CI
每年发生率
(95%CI
5年发生率
(95%CI
每年发生率
(95%CI
5年发生率
(95%CI
基台或螺丝松动 1.16%(0.66~2.03) 5.6%(3.2~9.6) 0.81%(0.45~1.46) 4.0%(2.2~7.0) 1.88%(0.63~5.61) 9.0%(3.1~24.4)
基台或螺丝折断 0.07%(0.02~0.20) 0.3%(0.1~1.0) 0.16%(0.08~0.32) 0.8%(0.4~1.6) 1.20%(0.31~4.68) 5.8%(1.5~20.9)
种植体折断 0.02%(0.004~0.070) 0.08%(0.2~1.5) 0.11%(0.40~0.30) 0.5%(0.2~1.5)
支架折断 0.04%(0.005~0.27) 0.2%(0.02~1.4)
修复体崩瓷 0.64%(0.43~0.96) 3.2%(2.1~4.7) 1.60%(0.77~3.30) 7.7%(3.8~15.2) 5.82%(3.77~9.00) 25.3%(17.2~36.2)
修复体固位丧失 0.63%(0.30~1.29) 3.1%(1.5~6.3)

Figure 1

Horizontal distance between the implant cervical platform and adjacent teeth"

Figure 2

Crown/root ratio after bone resorption around the implant"

Figure 3

Restoration of vertical height"

Figure 4

Improper cast resulting in microgaps between the final implant and implant prostheses"

Figure 5

Implants distribution in narrow and wide dental arch"

Figure 6

Different axial direction of implant and prothese"

Figure 7

Malocclusion curve"

Figure 8

Oversized cusp"

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