A meta‐analysis of implants in partial edentulism

Lindh, Thomas; Gunne, J; Tillberg, Anders; Molin, Margareta

doi:10.1034/j.1600-0501.1998.090203.x

Cited by 232 publications

(153 citation statements)

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“…1,2 His definition of 'a direct contact between living bone and an implant, on the light microscope level' 1 describes the objective of osseointegration, but the essence of its clinical success is the reliability of long-term implant fixation, even in the presence of functional loading. This has been supported by many studies, including a metaanalysis, 3 which reported a 90% success rate for osseointegrated implants used for bridge abutments.…”

Section: History Of Implantsmentioning

confidence: 60%

The Role of Implants in Orthodontics

Mehan¹,

Bhutani²

2012

International Journal of Oral Implantology &Amp; Clinical Research

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Section: History Of Implantsmentioning

confidence: 60%

The Role of Implants in Orthodontics

Mehan¹,

Bhutani²

2012

International Journal of Oral Implantology &Amp; Clinical Research

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“…3,4 • Longevity on implant-supported prostheses is approx. 95% at 7 years 5 and 89% at 15 years. 6 • Conventional fixed bridgework has many variables associated with the nature of the prosthetic service, especially the health of the abutment teeth.…”

Section: Commentarymentioning

confidence: 97%

Growing body of evidence on survival rates of implant-supported fixed prostheses

Abt

2008

Evid Based Dent

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Study selection Prospective or retrospective cohort studies were included if they had a mean follow-up of 5 years or more; were reported in the dental literature in the English or German language; patients had been examined clinically at the follow-up visit; and details of the characteristics of the suprastructures were reported. Publications that combined findings for both implant-supported fixed partial dentures and single-tooth crowns were selected if they allowed for extraction of the data for the single-tooth crowns group. Publications based on patient records only or on questionnaires or interviews were excluded. Data extraction and synthesis Failure and complication rates are calculated by dividing the number of events (failures or complications; the numerator) by the total exposure time [single crown (SC) time and/ or implant time; the denominator]. Event rates for SC and/ or implants were calculated by dividing the total number of events by the total SC or implant exposure time in years. The total number of events was considered to be Poisson distributed. To assess heterogeneity of the studyspecific event rates, the Spearman goodness-of fit statistics and associated probability value were calculated. Multivariable Poisson regression was used to investigate formally whether event rates varied by crown material (metal-ceramic vs all-ceramic) or crown design (cemented vs screw-retained).Results Twenty-six studies were included in the meta-analysis. Survival of implants supporting SC was 96.8% [95% confidence interval (CI), 95.9-97.6%] after 5 years. The survival rate of SC supported by implants was 94.5% (95% CI, 92.5-95.9%) after 5 years of function. The survival rate of metal-ceramic crowns, 95.4% (95% CI, 93.6-96.7%), was significantly higher (P 0.005) than the survival rate (91.2%; 95% CI, 86.8-94.2%), of all-ceramic crowns. Peri-implantitis and soft tissue complications occurred adjacent to 9.7% of the SC and 6.3% of the implants had bone loss exceeding 2 mm over the 5-year observation period. The cumulative incidence of implant fractures after 5 years was 0.14%. After 5 years, the cumulative incidence of screw or abutment loosening was 12.7%, and was 0.35% for screw or abutment fracture. For suprastructure-related complications, the cumulative incidence of ceramic or veneer fractures was 4.5%. Conclusions An observation period of 5 years allows the conclusion that high survival rates of implants and implant-supported SC can be expected, but biological and, particularly, technical complications are frequent. CommentaryThis study was a systematic review examining the 5-year survival and complication rates of implant-supported SC. Systematic reviews provide an excellent vehicle for summarising the evidence on a particular topic. They differ from their narrative counterparts in that they focus on a narrow clinical question and maintain strict study inclusion/ exclusion criteria, study quality and methods for data extraction. The authors correctly sought to examine survival rates of both implant fixtures ...

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“…This number is identical to that found in a recent meta-analyis on single-tooth implants after 7±8 years of follow-up. 1 The combined curve for survival of the restorations showed a survival estimate of 833% after 4 years. It should be noted that this number is based on 240 STRs from four of the nine reports containing adequate information for a combined survival analysis.…”

Section: Commentarymentioning

confidence: 99%

Single tooth implants have acceptable 4-year survival rates

Weber

2000

Evid Based Dent

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Data sources Medline 1990±1998, using keywords,`dental in SB', implant' and`single'.Study selection Only English papers that met a strict three-level selection procedure, including availability of or the ability to calculate life-table survival curves, were included.Data extraction and synthesis Cumulative life-table survival curves were constructed by pooling data from the included studies to new data sets.Results Of 332 papers initially identified, the majority were excluded because they were case reports, technical notes or descriptions of clinical procedures. Nine studies met all the criteria with the data predicting a 97%(+1%) survival implant survival at 4 years, with an uncomplicated crown survival rate of 83%(+3%).Conclusions Single tooth implants have an acceptable short-term survival rate. More information and better quality clinical studies and reporting are needed, however.

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A meta‐analysis of implants in partial edentulism

Cited by 232 publications

References 0 publications

The Role of Implants in Orthodontics

The Role of Implants in Orthodontics

Growing body of evidence on survival rates of implant-supported fixed prostheses

Single tooth implants have acceptable 4-year survival rates

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