What do systematic reviews say?

Ball (stud) attachment system vs Bar attachment system

It is very uncertain whether ball (stud) attachment system changes re-treatment: replacement of attachment system (short term) compared with bar attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  RR 1.18 [0.38, 3.71]
  2 studies · 130 participants
  Very low

Ball (stud) attachment system vs Magnetic attachment system

It is very uncertain whether ball (stud) attachment system changes cost of prosthodontic maintenance (medium term) compared with magnetic attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Medium term (3 to 5 years)
  MD -247.37 [-346.32, -148.42]
  1 study · 69 participants
  Very low

Ball (stud) attachment system vs Magnetic attachment system

It is very uncertain whether ball (stud) attachment system changes prosthodontic success (medium term) compared with magnetic attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Medium term (3 to 5 years)
  RR 0.84 [0.64, 1.10]
  1 study · 69 participants
  Very low

Ball (stud) attachment system vs Telescopic attachment system

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  no estimate extracted
  Studies not reported
  No studies found

Ball (stud) attachment system vs Bar attachment system

It is very uncertain whether ball (stud) attachment system changes re-treatment: repair of attachment system (short term) compared with bar attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  RR 3.11 [1.68, 5.75]
  2 studies · 130 participants
  Very low

Ball (stud) attachment system vs Bar attachment system

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  Considerable heterogeneity (I2 = 97%). Pooling of data was not done. See comment / See comment
  2 studies · 130 participants
  Very low

Ball (stud) attachment system vs Bar attachment system

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  Walton 2002 reported costs but the data could not be used due to failure to report means and standard deviations and only providing the median of the costs.
  1 study
  GRADE not reported

Ball (stud) attachment system vs Bar attachment system

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  Only Walton 2002 assessed patient satisfaction but reported narrative results and failed to provide any usable numbers. Quality of life as assessed by a validated measure was not recorded in any of the trials.
  1 study
  GRADE not reported

Ball (stud) attachment system vs Telescopic attachment system

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  no estimate extracted
  Studies not reported
  No studies found

Ball (stud) attachment system vs Telescopic attachment system

It is very uncertain whether ball (stud) attachment system changes prosthodontic maintenance: patrix replaced (short term) compared with telescopic attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  RR 6.00 [0.86, 41.96]
  1 study · 22 participants
  Very low

Ball (stud) attachment system vs Telescopic attachment system

It is very uncertain whether ball (stud) attachment system changes prosthodontic maintenance: matrix activated (short term) compared with telescopic attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  RR 11.00 [0.68, 177.72]
  1 study · 22 participants
  Very low

Ball (stud) attachment system vs Bar attachment system

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  Recorded by Kappel 2016 and Walton 2002; they did not provide usable data for inclusion in the review.
  2 studies
  GRADE not reported

Ball (stud) attachment system vs Telescopic attachment system

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  Cepa 2017 assessed patient satisfaction but did not use validated measures and we could not use the data. Quality of life as assessed by a validated measure was not recorded.
  1 study
  GRADE not reported

Ball (stud) attachment system vs Magnetic attachment system

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  Two trials (Cune 2010; Naert 1999) reported patient satisfaction. However, we could not use any data from these studies. Quality of life as assessed by a validated measure was not recorded in any of the trials.
  2 studies
  GRADE not reported

Ball (stud) attachment system vs Magnetic attachment system

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  Recorded by Cristache 2014, Cune 2010 and Naert 1999; they did not provide usable data for inclusion in the review.
  3 studies
  GRADE not reported

Ball (stud) attachment system vs Magnetic attachment system

It is very uncertain whether ball (stud) attachment system changes re-treatment: repair of attachment system (medium term) compared with magnetic attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Medium term (3 to 5 years)
  RR 1.75 [0.65, 4.72]
  1 study · 69 participants
  Very low

Ball (stud) attachment system vs Telescopic attachment system

It is very uncertain whether ball (stud) attachment system changes prosthodontic maintenance: reline of implant overdenture (short term) compared with telescopic attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  RR 2.33 [0.81, 6.76]
  1 study · 22 participants
  Very low

Ball (stud) attachment system vs Telescopic attachment system

It is very uncertain whether ball (stud) attachment system changes prosthodontic maintenance: matrix replaced (short term) compared with telescopic attachment system (very low certainty).

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes

  Short term (1 to 3 years)
  RR 1.75 [0.71, 4.31]
  1 study · 22 participants
  Very low

Ball (stud) attachment system vs Magnetic attachment system

The review found no eligible studies for this question.

• Interventions for replacing missing teeth: attachment systems for implant overdentures in edentulous jaws 2018 · Cochrane All outcomes
  no estimate extracted
  Studies not reported
  No studies found