title: A retrospective multicenter case series evaluating a novel 3.0-mm expanding tapered body implant for the rehabilitation of missing incisors.
abstract: OBJECTIVE
  Narrow-diameter implants are indicated for narrow sites, small interdental/interimplant spaces, or sites with congenitally missing teeth. They also offer a substitute for invasive augmentation procedures. The authors retrospectively evaluated the performance of a new 3.0-mm diameter implant for rehabilitating small anterior spaces.
  
  
  METHODS
  This observational multicenter retrospective case series included consecutive patients needing single-unit restoration for mandibular and lateral maxillary incisors. The outcome variables were: implant survival, Plaque Index, pocket probing depth (PPD), Jemt's papilla index, bleeding on probing (BOP), and marginal bone remodeling.
  
  
  RESULTS
  In total, 45 patients received 58 3.0-mm implants placed in healed sites (n = 22), extraction sockets (n = 16), or sites with congenitally missing teeth (n = 20). Average follow-up time was 15.1 ± 5.2 months. Prosthetic loading was immediate (n = 23), early (n = 16), or delayed (n = 19). Two implants were lost, and two prosthetic complications occurred. One-year bone remodeling averaged -0.36 ± 0.85 mm (n = 44). PPD averaged 1.75 ± 0.58 mm. Neither BOP nor plaque was detected around implants.
  
  
  CONCLUSIONS
  At 1-year follow-up, narrow 3.0-mm diameter implants placed in mandibular and lateral maxillary incisor sites demonstrate a high survival rate and support stable marginal bone levels and healthy soft tissue.
authors.forename: Scott
authors.initials: S
authors.lastname: MacLean
authors.forename: Marc
authors.initials: M
authors.lastname: Hermans
authors.forename: Luke
authors.initials: L
authors.lastname: Villata
authors.forename: Giovanni
authors.initials: G
authors.lastname: Polizzi
authors.forename: Nikhil
authors.initials: N
authors.lastname: Sisodia
authors.forename: James E
authors.initials: JE
authors.lastname: Cherry
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016301:Alveolar Bone Loss / Q000517:prevention & control; D016723:Bone Remodeling; D003758:Dental Implantation, Endosseous / Q000379:methods*; D019250:Dental Implants, Single-Tooth; D003774:Dental Plaque Index; D017267:Dental Prosthesis Design; D005260:Female; D006801:Humans; D007180:Incisor; D008297:Male; D008875:Middle Aged; D010512:Periodontal Index; D012189:Retrospective Studies; D016896:Treatment Outcome