Gua-Hao (Alex) Linn, DDS, MS, Periodontist. San Francisco, CA
Director of the Postgraduate Periodontics Program at the University of California, San Francisco (UCSF)
The Interplay between Peri-Implant Tissue Phenotype and Prosthetic Designs
Description:
There has been a substantial increase in the use of dental implants worldwide. While implant therapy is highly effective, a growing number of patients present with peri-implant bone loss. The etiologies of peri-implant bone loss are multifactorial; however, emerging evidence highlights the significant influence of the peri-implant tissue phenotype on peri-implant health. Additionally, numerous studies have demonstrated strong associations between peri-implant health and the prosthetic designs of the implant suprastructure.
Both the peri-implant tissue phenotype and prosthetic designs play pivotal roles in determining marginal bone stability. Without a clear strategy to optimize tissue phenotype and manage prosthetic parameters, the risk of peri-implant bone loss increases, potentially leading to biological complications such as peri-implantitis.
This lecture will discuss the principles of ideal implant positioning, phenotype modification therapy (PhMT), and their impact on long-term outcomes. It will also explore how peri-implant hard and soft tissues respond to various prosthetic designs and peri-implant phenotype.
Educational Objectives:
By the completion of this course each participant should be able to:
- Identify strategies for modifying peri-implant tissue phenotype through PhMT to enhance long-term implant success.
- Differentiate how variations in implant positioning and prosthetic designs influence peri-implant hard and soft tissue stability.
- Apply principles of prosthetic designs and implant positioning to minimize biological complications such as peri-implantitis.
Key Citations:
Lin GH, Lee E, Barootchi S, Rosen PS, Curtis DA, Kan J, Wang HL. The influence of prosthetic designs on peri-implant bone loss: An AO/AAP Consensus Conference systematic review and meta-analysis. J Periodontol. 2025;96(6):634-651. doi:10.1002/JPER.24-0144. PMID: 40489290
Lin GH, Curtis DA, Kapila Y, Velasquez D, Kan JYK, Tahir P, Avila-Ortiz G, Kao RT. The significance of surgically modifying soft tissue phenotype around fixed dental prostheses: An American Academy of Periodontology best evidence review. J Periodontol. 2020 03; 91(3):339-351. PMID: 31670835.
Curtis DA, Lin GH, Fishman A, Sadowsky SJ, Daubert DM, Kapila Y, Sharma AB, Conte GJ, Yonemura CY, Marinello CP, Kao R. Patient-centered risk assessment in implant treatment planning. Int J Oral Maxillofac Implants. 2019;34(2):343-352. doi:10.11607/jomi.7008. PMID: 30716143