Narrow diameter dental implants are proven to be an excellent addition to our armamentarium to treat cases where the space is limited or where the bone availability is restricted.
One of the biggest concerns with narrow diameter implants is the fracture of the implant due to its reduced diameter and occlusal load exerted intraorally. Straumann recently developed the BLT ∅ 2.9 mm, which has the advantage of being fabricated with Roxolid – a metal alloy composed of 15% zirconium and 85% titanium that has higher tensile and fatique strengths than comparable titanium implants, and has excellent osseointegration and biocompatibility properties.
This visual essay walks you through an immediate implant placement and fabrication of a definitive ceramic restoration of a maxillary lateral incisor. The implant was the treatment of choice as the coronal portion of the tooth was fractured and presented extensive breakdown, lack of ferrule and inadequate structural integrity.
Narrow diameter implants are a great solution for limited spaces and adequate esthetics can be achieved when they are used properly.
As evident in these photographs the clinical crowns of the central incisors are shorter than the lateral incisors. The patient was advised to go through an esthetic crown lengthening procedure performed on her central incisors, which she refused.
Note: Roxolid® and Variobase® are both registered trademarks of Straumann Holding AG.
Ricardo Mitrani, D.D.S., M.S.D., is a member of Spear Resident Faculty.
Medvedev A, Molotnikov A, Lapovok R, Zeller R, Berner S, Habersetzer P, Dalla Torre S. (2016). Microstructure and mechanical properties of Ti-15Zr alloy used as dental implant material. Journal of the Mechanical Behavior of Biomedical Materials, In Press, Accepted Manuscript, Available online 11 May 2016.