Prima

Science Meets Simplicity

Prima has been the cornerstone of Keystone Dental Group with proven simplicity and versatility for over 15 years. PrimaConnex® implants are designed to simplify the treatment process from surgery to restoration using only one surgical kit, one universal driver and one abutment screw. Prima Plus™ builds on the foundation of PrimaConnex® with an aggressive thread for immediate placement and function specifically designed for demanding clinical procedures, including full-arch rehabilitation. 

Implant Overview

Prima Plus

TiLobe® Connection

A versatile TiLobe® six-lobed, color-coded internal connection provides a stable implant and abutment connection.

Platform Switch

The platform switch helps to maintain crestal bone and increase soft tissue volume around the implant platform.

Microgrooves

Microgrooves provide even-load distribution for stabilizing and maintaining crestal bone levels.

Variable Threads

Variable threads reduce stress, and the increased surface area enables immediate placement.

Aggressive Thread

Aggressive threads promote primary stability, especially in immediate extraction sites and soft bone. Apical cutting threads allow for an undersized osteotomy for high initial stability in compromised bone situations.

References

Scientific Articles

1. Prof. Dr. H.-Ch. Lauer. Micro-movements of Implant-abutment interface Test-Report Department of Prosthetic Dentistry. Dipl.-Ing. H. Zipprich, J. W. Goethe-University Frankfurtam Main.

2. Abutment/implant Interface Stress Analysis Using An Angled Abutment Finite ElementAnalysis of the PrimaConnex Coronal Taper; Internal docu­ment.

3. AI-Nsour MM, Hsun-Liang C, Wang HL.Effect of the Platform-Switching Technique on Preservation of Peri-implant Marginal Bone: A Systematic Review. The International Journal of Oral & Maxillofacial Implants Volume 27, Number 1, 2012.

4. Cappiello M, Luongo R, Di Iorio D, Bugea C, Cocchetto R, Celletti R. Evaluation of peri-implant bone loss around platform-switched implants. Int J Periodontics Restorative Dent. 2008 Aug;28(4):347-55.

5. Prosper L, Redaelli S, Pasi M, Zarone F, Radaelli G, Gherlone EF. A randomized prospective multicenter trial evaluating the platform-switching technique for the prevention of post-restorative crestal bone loss. Int J Oral Maxillofac Implants. 2009 Mar-Apr;24(2):299-308.

6. AL-Thobity AM, Kutkut A, Almas K. Microthreaded Implants and Crestal Bone Loss: A Systematic Review. J Oral Implantol. Apr, 2019; 43(2). 

7. Klein M, Tarnow D, Lehrfield L. Marginal Bone Changes on Ultraclean, Micro-Threaded Platform-Switched Implants Following Restoration: 1- to 4-Year Data. Compendium of Continuin Education in Dentistry. Article Vol. 41 No. 4. 2020.

8.Singh Dhaliwal J, Rani Nakka David S, Ramizah Zulhilmi N, Kaur Sodhi Dhaliwal S, Knights J, Ferreira de Albuquerque Junior R. Contamination of titanium dental implants: a narrative review. SN Applied Sciences volume 2, Article number: 1011. 2020.

9. Duddeck D, Maghaireh H, Faber FJ and Neugebauser J. SEM surface analyses of 120 sterile-packed implants. EDI Journal. 2014; 64-75.

10. Arnhart C, M Kielbassa A, Martinez-de Fuentes R, Goldstein M, Jackowski J, Lorenzoni M, Maiorana C, Mericske-Stern R, Pozzi A, Rompen E, Sanz M, R Strub J. Comparison of variable-thread tapered implant designs to a standard tapered implant design after immediate loading. A 3-year multicentre randomised controlled trial. Eur J Oral Implantol. Summer 2012;5(2):123-36. 

11. Falco A, Berardini M, Trisi P. Correlation Between Implant Geometry, Implant Surface, Insertion Torque, and Primary Stability: In Vitro Biomechanical Analysis. Int J Oral Maxillofac Implants. Jul/Aug 2018;33(4):824-830. doi: 10.11607/jomi.6285.

12. Abuhussein H, Pagni G, Rebaudi A, Wang HL. The effect of thread pattern upon implant osseointegration Clin. Oral Impl. Res. 21, 2010 / 129–136.

13. Abboud M, Rugova S, Orentlicher G. Immediate Loading: Are Implant Surface and Thread Design More Important Than Osteotomy Preparation? Compend Contin Educ Dent. Jul/Aug 2020;41(7):384-386.

14. Annibali S1, Bignozzi I, Cristalli MP, Graziani F, La Monaca G, Polimeni A.“Peri-implant marginal bone level: a systematic review and meta-analysis of studies comparing platform switching versus conventionally restored implants” J Clin Periodontol. 2012 Nov;39(11):1097-113.