This review of dental implant studies with 10 years or more follow up found average survival rates of 94.6% (range 73.4%- 100%). The lowest rate 73.4% was seen in the study with the longest follow up period (20 years).
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This review of survival rates of dental implants placed in fresh extraction sockets included 73 studies. However the majority were retrospective with only 5 small RCTs and 26 controlled trials. While the findings suggest that failure rates are higher in extraction sockets the evidence should be interpreted with caution.
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This review compared the survival of mandibular overdentures supported by 1- or 2- implants. Only two small RCTs were identified that suggest no difference between 1- or 2- implants. However only a small number of patients were included in these trials so the evidence is weak and more high quality trials are required.
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This large Swedish questionnaire survey conducted on a random sample of patients achieved a high response rate (83%) . Those who had received dental implant supported restorative treatment reported very high levels of satisfaction (94%). However, 31% had experienced implant related complications although only 6% reported that these complications occurred frequently.
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This review included 44 studies (25 prospective, 19 retrospective) and suggests that survival rates for tilted and axially dental implants are similar. However the findings should be treated with caution because of the limited quality of the available evidence.
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This review looks at dental implants placed in the maxillary tuberosity only 5 low quality studies involving 113 patients were found in total. While good survival rates were found these should be interpreted with caution.
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Another review of failure rates of dental implants shows increased failure rates in patients with generalised aggressive periodontitis. Six studies (5 from the same research group ) involving 290 patients and 834 implants were included.
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This new review identified 22 studies but no randomised trials and found a higher dental implant failure rate in periodontally compromised patients than health ones. However concerns over study quality means the findings should be interpreted with caution.
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There is a growing interest in patients’ expectations of dental implants. This review found 10 mainly cross sectional studies with variable quality of reporting. Expectations with respect to aesthetics and function predominated.
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Today we look at a review of surgical treatments for the management of peri-implantitis. 21 studies were identified but only 5 were randomised trials, only one of which was at low risk of bias. While all approaches provided some benefit the available evidence is limited.
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