J Korean Acad Prosthodont.  2022 Jan;60(1):119-126. 10.4047/jkap.2022.60.1.119.

Mini-implant with additional retentive structure by using digital method

• Hwang SH
• Bae EB
• Cho WT
• Huh JB

• KMID: 2525014
• DOI: http://doi.org/10.4047/jkap.2022.60.1.119

Abstract

Mini-implant has been reported as an alternative method to conventional diameter implants in the treatment of mandibular anterior region with narrow ridge. However, one-piece type mini-implant showed biological and technical complications, such as peri-implantitis by residual cement and prosthetic detachment. Recently, one-piece type mini-implant with additional retentive structure has been introduced to increase the retention and stability of the mini-implant. The mini-implant is based on spreading the upper retentive structure with a spreader and connected it with the inner surface of the zirconia prosthesis. In two cases, we tried to reduce these complications through the mini-implant on the narrow mandibular anterior region, and it was possible to reduce the overall treatment period through a digital system. In this case report, restoration using the digital mini-implant system showed improvement of patient satisfaction on the aspect of function and esthetic in the narrow mandibular anterior region.

Keyword

Dental implant; Digital scan; Mini-implant; Narrow ridge