title: There is No Evidence on the Effect of the Attachment System on Implant Survival Rate, Overdenture Maintenance, or Patient Satisfaction.
abstract: BACKGROUND
  Attachment systems for mandibular implant overdentures: a systematic review. Kim HY, Lee JY, Shin SW, Bryant SR.J Advanced Prosthodont 2012;4(4):197-203.
  
  
  METHODS
  Ahmed Yaseen Alqutaibi, BDS, MDSc, PhD(c)
  
  
  OBJECTIVE
  To address treatment outcomes depending on attachment systems for two-implant mandibular-supported overdentures in terms of (1) implant survival rate, (2) prosthetic maintenance and complications, and (3) patient satisfaction.
  
  
  METHODS
  Systematic review
  
  
  METHODS
  Level 2: Limited-quality, patient-oriented evidence
  
  
  METHODS
  Grade B: Inconsistent, limited-quality patient-oriented evidence.
authors.affiliation: Department of Prosthodontics, Faculty of Oral and Dental Medicine, Cairo University, Cairo, Egypt; Assistant Lecturer, Department of Prosthodontics, Faculty of Oral and Dental Medicine, IBB University, IBB, Yemen. Electronic address: am01012002@gmail.com.
authors.forename: Ahmed Yaseen
authors.initials: AY
authors.lastname: Alqutaibi