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Quintessence Int 47 (2016), No. 4     24. Mar. 2016
Quintessence Int 47 (2016), No. 4  (24.03.2016)

Page 297-306, doi:10.3290/j.qi.a35626, PubMed:26949759


A retrospective multicenter case series evaluating a novel 3.0-mm expanding tapered body implant for the rehabilitation of missing incisors
MacLean, Scott / Hermans, Marc / Villata, Luke / Polizzi, Giovanni / Sisodia, Nikhil / Cherry, James E.
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.
Method and Materials: 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.

Keywords: congenitally missing teeth, dental implants, marginal bone remodeling, narrow-diameter implants, single tooth, survival rate