Dr. Sieu Yien (Ashley) Chiam is a Health Sciences Assistant Clinical Professor in the UCLA School of Dentistry’s Section of Prosthodontics. 

She is a Diplomate of the American Board of Prosthodontics and the American Board of Dental Sleep Medicine.

Her clinical interests include esthetic dentistry, full-mouth complex rehabilitative treatment, and the management of sleep apnea. Her research focuses on dental biomaterials and implant dentistry.

  • Dental School, National Yang-Ming University, Taiwan, 2016
  • Internship, Taichung Veterans General Hospital (TVGH), Taiwan, 2015-2016
  • General Practice Residency, Show Chwan Memorial Hospital, Taiwan, 2016-2017
  • Graduate Prosthodontics Residency, University of Washington, 2020-2023
  • Chiam SY, Lee HL, Bedrossian AE, Xu Q, Kuykendall W, Ren A, Hess TA, Ramos V Jr, Chung KH. Retention of titanium copings to implant-supported fixed dental prostheses. J Prosthodont. 2024 Apr;33(4):340-347. doi: 10.1111/jopr.13706. Epub 2023 Jun 1. PMID: 37203989.
  • Chiam SY, Liu HP, Oh WS. Mechanical and biological complications of angled versus straight screw channel implant-supported prostheses: A systematic review and meta-analysis. J Prosthet Dent. 2024 Nov 15:S0022-3913(24)00700-5. doi: 10.1016/j.prosdent.2024.10.009.
  • Liu HP, Chiam SY, Kakar E, Wang HL. Xenogeneic Bone Block in Lateral Ridge Augmentation: Where Are We Now? A Systematic Review and Meta-analysis. Int J Oral Maxillofac Implants. 2025 Apr 8;40(2):151-161. doi: 10.11607/jomi.11048. PMID: 39316449.
  • Liu HP, Chiam SY, Wang HL. Influence of Ti-Base-Supported Implant Restoration on Peri-implant Conditions: A Systematic Review and Meta-analysis. Int J Oral Maxillofac Implants. 2024 Dec 11;39(6):815-822. doi:10.11607/jomi.10924. PMID: 38788136.
  • Pibulniyom M, Fattouhi M, Chiam SY, Rajborirug S, Kuykendall W, Wadhwani CPK, An JY, Ramos V Jr, Wee AG, Chung KH. The influence of multi-unit abutment angulation on the prosthetic screw-joint stability. J Prosthodont. 2025 Nov 22. doi: 10.1111/jopr.70060. 

All publications:
PubMed

  • American College of Prosthodontics, Sharry Competition finalist, Oct. 2023
  • Academy of Dental Materials Award, June 2023
  • First place, American Prosthodontic Society Graduate Research Competition, Feb. 24, 2023
  • American College of Prosthodontics Education Foundation Research Fellowship Award, 2021
  • Diplomate of the American Board of Prosthodontics
  • Diplomate of American Board of Dental Sleep Medicine
  • Member of American Academy of Fixed Prosthodontics
  • Member of Michigan Dental Association